1. Warnung.bund.de
  2. Katwarn - Aktuelle Warnungen
  3. BIWAPP Bürger Info & Warn App

    Search

  4. The Search Engine Map
  5. Comparison of web search engines - Wikipedia

    Search Engines Meta

  6. eTools.ch - The Transparent Metasearch Engine from Switzerland
  7. MetaGer, mehr als eine Suchmaschine: unabhängig, transparent, demokratisch, quellcode-offen, datensicher, privatsphären-geschützt
  8. searx (honigdachse.de) - auch als m2lf3e5iyb4lv46p.onion
  9. Searx instances - and .onion
  10. Sepia Search - A search engine of PeerTube videos, channels and playlists
  11. Wikipedia Search (ixquick)
  12. Startpage Search Engine ixquick Google
  13. duck.co - The DuckDuckGo Community - All things DuckDuckGo
  14. DuckDuckHack
  15. YaCy Distributed Web Search - YaCy is a scalable personal web crawler and web search engine.
  16. Yippy
  17. # Schnellsuche.de - Suchmaschinen
  18. WWW Virtual Library
  19. Unix-AG - CUSI - Configurable Unified Search Engine
  20. IntelTechniques OSINT Online Search Tool

    Search Engines

  21. DuckDuckGo and as .onion address
  22. audits/ddg.md · master · Inspector Gadget / Cyberservices Ethics Audit Project · GitLab - the not so pure DuckDuckGo
  23. Qwant
  24. Qwant Lite
  25. Stract - mostly displays results for only what you searched for; opt-out from Settings - Privacy - Allow usage statistics
  26. Web Search - Exalead
  27. Google https webhp?hl=en
  28. Google intl/en/
  29. Google Deutschland
  30. Google Erweiterte Suche - ohne Preisvergleiche, Auktionen, und Dialer ...
  31. Gigablast
  32. WEB.DE Suche
  33. Seekport.de
  34. Ask Jeeves - Ask.com
  35. Answers.com - Online Dictionary, Encyclopedia and much more
  36. Stack Exchange - Free, Community-Powered Q&A
  37. fastbot>>
  38. Lycos
  39. Search engine and human edited web directory KartOO
  40. Fireball
  41. Teoma - Search with Authority
  42. Suche t-online.de
  43. Bing
  44. Time Travel (mementoweb.org)
  45. Internet Archive: Wayback Machine
  46. Webpage archive (archive.is) - webpage snapshots
  47. WebCite - an on-demand archiving system for webreferences
  48. ArchiveBox | 🗃 Open source self-hosted web archiving. Takes URLs/browser history/bookmarks/Pocket/Pinboard/etc., saves HTML, JS, PDFs, media, and more…
  49. arXiv.org e-Print archive
  50. YaCy: P2P Web Search Engine

    Search Infos

  51. Die Suchfibel
  52. Klug Suchen!
  53. top-info.com - professionelle online-Recherche für Journalisten
  54. Suchmaschinen - Magazin @-web
  55. Search Engine Watch: Tips About Internet Search Engines & Search Engine Submission
  56. John Battelle's Searchblog
  57. DuckDuckGo's privacy abuses-- current, historic, and by proxy - Lemmy

    Search Special

  58. GeoTags Location-Based Search Engine
  59. geometa.info - Die Suchmaschine für Geodienste, Geodaten und Online-Karten
  60. Getty Thesaurus of Geographic Names (Research at the Getty)
  61. Artcyclopedia: The Fine Art Search Engine
  62. TinEye Reverse Image Search
  63. PimEyes: Face Recognition Search Engine and Reverse Image Search
  64. midomi - Search for music by singing or humming part of a song.
  65. Wissenschaftliche Suchmaschine BASE - Bielefeld Academic Search Engine: Standardsuche
  66. vascoda - the internet-portal for scientific and scholary information
  67. Medizinwissen suchen, KnowHow teilen - DocCheck Flexikon
  68. MeIND - Metadata on Internet Documents
  69. SHODAN - Computer Search Engine - expose online devices
  70. MedCrawler.de - Die Suchmaschine für Medizin und Gesundheit
  71. Invisible-web.net - Searchable databases and specialized search engines
  72. mundraub.org - Finde #Stadtfrüchte
  73. Fagan Finder // search engines, reference, tools, and more
  74. NNDB: Tracking the entire world - Notable Names Data Base
  75. toool.de · Alles auf einen Klick ·
  76. www.eventax.de - Die Metasuchmaschine für Veranstaltungen - Finding events online just became easier
  77. wazap! game search | spiele suche
  78. Powercat - Webkatalog für Frauen
  79. Picsearch - die Suchmaschine für Bilder und Fotos
  80. Search FishBase
  81. Search Bastard FAQ
  82. IDGR - Suche und Recherche
  83. YACY: a freeware caching HTTP Proxy in Java with integrated search engine - p2p-based Web indexing network
  84. WWW-Server in Deutschland
  85. Personen / Infos zu Name - Personen-Suchmaschine yasni
  86. | StayFriends | Die Freunde-Suchmaschine
  87. Passado.de - Klassentreffen organisieren und Schulfreunde wiederfinden.
  88. FamousFix Home - celebreties search

    Google Di Moogle

  89. De-google-ify Internet
  90. Google Cache - replace %s with http://...
  91. The Google Cemetery - List of dead Google products
  92. Goomics - Comics about life at Google
  93. Google Groups
  94. Google Earth
  95. Google Transit
  96. Google Blog Search
  97. Google Scholar
  98. Google Print
  99. Google Video
  100. Google Finance
  101. Froogle
  102. Froogle Deutschland
  103. Google Trends
  104. Google Insights for Search
  105. Google Help : Search Features
  106. Google Labs
  107. Google Doodles
  108. Latest Google Doodles RSS
  109. Google Suggest
  110. Official Google Research Blog
  111. Official Google Blog
  112. Google Weblog (just a name, thestartupnews)
  113. Google Guide: Help with Searching
  114. Google Guide: Crafting Your Query (Using Special Characters)
  115. Google Guide: Using Search Operators (Advanced Operators)
  116. Google Maps
  117. Google Sightseeing
  118. Flood Maps
  119. DarkSiteFinder.com - Light Pollution Map
  120. Google Hacks - The projects listed are Google Hacks in that they use Google for something fun or interesting in a way that Google was not designed for. Also visit the other map projects.
  121. Localized Google Search Result Exclusions: Statement of Issues & A Call for Data
  122. Chilling Effects Google Search Comparator - a side-by-side comparison of Google searches in different domains
  123. Google China Search Comparison
  124. Lumen - censorship database; formerly Chilling Effects Clearinghouse
  125. Anonymizing Google's cookie
  126. Google Watch
  127. Google Watch Watch
  128. Googlism
  129. Google Fight : Make a fight with googleFight
  130. Picular - Google, but for colors.
  131. Die Google-Gesellschaft
  132. Let me google that for you
  133. c't 10/2006, S. 162: Google: Marktmacht - Jenseits von gut und böse - Der unheimliche Erfolg von Google
  134. c't 10/2006, S. 168: Google: Datensammler - Der Datenkrake - Google und der Datenschutz
  135. c't 10/2006, S. 172: Google: die Gegenbewegung - Europäische Gegenströmung - Bestrebungen zur Entwicklung europäischer Google-Konkurrenten
  136. c't 10/2006, S. 176: Google-Alternativen - Googlehagel - Alternativen zum Marktführer
  137. How the CIA made Google – INSURGE intelligence – Medium
  138. Why Google made the NSA – INSURGE intelligence – Medium
  139. So schufen NSA und CIA Google
  140. Google's true origin partly lies in CIA and NSA research grants for mass surveillance — Quartz

    Search Auskünfte

  141. Telefonbuch - Auskunft - Telefonnummer - Branchenbuch | GoYellow.de | GoYellow.de
  142. YellowMap - Alles in Ihrer Nähe!
  143. Arzt-Auskunft - Der Arzt-Such-Service der Stiftung Gesundheit
  144. HipRank.com | Word on the web

    Security

  145. oss-security mailing list
  146. USENIX Security '18-Q: Why Do Keynote Speakers Keep Suggesting That Improving Security Is Possible? - YouTube
  147. Zero Day Initiative
  148. security.txt: Proposed standard for defining security policies
  149. RFC 9116: A File Format to Aid in Security Vulnerability Disclosure
  150. Schneier on Security
  151. Security Affairs - Read, think, share … Security is everyone's responsibilitySecurity Affairs
  152. The Citizen Lab - University of Toronto
  153. Almost Secure (palant.info)
  154. Security and So Many Things
  155. Have I been pwned? Check if your email has been compromised in a data breach - Adobe, Bell, Boxee, Forbes, Snapchat, Sony, Vodafone, Yahoo, ...
  156. Troy Hunt: Introducing 306 Million Freely Downloadable Pwned Passwords
  157. Troy Hunt: I've Just Launched "Pwned Passwords" V2 With Half a Billion Passwords for Download
  158. erAck/pwnedpasswords: Bourne shell script to check if password is present at pwnedpasswords.com using their k-Anonymity model SHA-1 API (API v2). Password is either entered invisibly, or piped from stdin to stdout. - Codeberg.org
  159. Identity Leak Checker (hpi.de) - email address and personal data in the wild?
  160. GhostProject - email address or username
  161. IONOS Validierungs-Service - Phishing Mails
  162. Validierungs-Service für Ihre E-Mail | STRATO - Phishing Mails
  163. Report a Phishing Page - Google Safebrowsing
  164. URL and website scanner - urlscan.io
  165. badssl.com - see the SSL errors you can get with your browser
  166. Project Zero - vulnerabilities everywhere
  167. Privacy vs. Anonymity vs. Security: Why They Don't All Mean the Same Thing
  168. Articles | Madaidan's Insecurities - Security & Privacy Evaluations
  169. Security and Privacy Advice | Madaidan's Insecurities
  170. BSI - Kampagne "einfach aBSIchern"
  171. BSI - Sichere Passwörter erstellen
  172. What the !#@% is a Passkey? | Electronic Frontier Foundation
  173. The WIRED Guide to Digital Security | WIRED
  174. DIY Feminist Cybersecurity
  175. Security In A Box | Tools and tactics for your digital security - a tad outdated..
  176. apenwarr/sshuttle · GitHub - Transparent proxy server that works as a poor man's VPN. Forwards over ssh. Doesn't require admin. Works with Linux and MacOS. Supports DNS tunneling.
  177. PrivacyBox - The Secure Cloud Storage
  178. Fefes Blog: Ueber Sinn und Unsinn von Certificates
  179. CAcert.org - free digital certificates
  180. FAQ/AssurancePrefilledForms - CAcert Wiki
  181. AngepasstesCAPFormular - CAcert Wiki
  182. FAQ/BrowserClients - CAcert Wiki - how to import the CAcert Root Certificate in your web browser
  183. FAQ - CAcert Wiki #Certificate - Root, Browser, Client, Email, Server Certificates
  184. StartSSL(TM) Certificates & Public Key Infrastructure
  185. SSL für lau | heise Security - StartSSL Zertifikate erstellen und einbinden
  186. Let's Encrypt
  187. Chain of Trust - Let's Encrypt
  188. Certificate Compatibility - Let's Encrypt
  189. Production Chain Changes - API Announcements - Let's Encrypt Community Support
  190. DST Root CA X3 Expiration (September 2021) - Let's Encrypt
  191. Extending Android Device Compatibility for Let's Encrypt Certificates - Let's Encrypt
  192. Certbot - Automatically enable HTTPS on your website with EFF's Certbot, deploying Let's Encrypt certificates.
  193. GitHub - diafygi/acme-nosudo: Free HTTPS certificates without having to trust the letsencrypt cli with sudo/root
  194. GitHub - zenhack/simp_le: Simple Let's Encrypt client
  195. Free SSL Certificates and SSL Tools - ZeroSSL
  196. mkcert.org - Take control of your certificate trust store.
  197. Introducing Universal SSL - CloudFlare
  198. xca | SourceForge.net - X Certificate and Key management is an interface for managing asymetric keys like RSA or DSA. It is intended as a small CA for creation and signing certificates. It uses the OpenSSL library for the cryptographic operations.
  199. tlshelpers/matchcertkey at master · hannob/tlshelpers · GitHub - Check if certificate and private key match, as mentioned in How I tricked Symantec with a Fake Private Key - Hanno's blog
  200. smallstep - Everything you should know about certificates and PKI but are too afraid to ask
  201. Certificate Transparency : Certificate Transparency - Working together to detect maliciously or mistakenly issued certificates.
  202. ioerror/duraconf · GitHub - A collection of hardened configuration files for SSL/TLS services (Jacob Appelbaum)
  203. Observatory by Mozilla
  204. GitHub - drwetter/testssl.sh: Testing TLS/SSL encryption anywhere on any port
  205. Qualys SSL Labs - Projects / SSL Server Test
  206. Qualys SSL Labs - Projects / SSL/TLS Deployment Best Practices
  207. Hardenize: Making web site security easy and fun
  208. Test a TLS server on any port - based on /bin/bash based SSL/TLS tester: testssl.sh
  209. CryptCheck
  210. SSL Checker - Test Certificate and Installation
  211. SSL, STARTTLS and Zertifikate prüfen · SSL-Tools - mail server, web server
  212. Analyse your HTTP response headers (securityheaders.io)
  213. Warum wir jetzt Forward Secrecy brauchen | heise Security
  214. Forward Secrecy testen und einrichten | heise Security
  215. trapkit.de - checksec.sh - check mitigation techniques on Linux executables; see also High level explanation on some binary executable security - Simplicity is a form of art...
  216. DROWN Attack
  217. Heartbleed Bug
  218. LastPass - LastPass Heartbleed checker
  219. Test your server for Heartbleed (CVE-2014-0160)
  220. Heartbleed Bug: What Can You Do? — Krebs on Security
  221. ssl - What clients are proven to be vulnerable to Heartbleed? - Information Security Stack Exchange
  222. The Bleeding Hearts Club: Heartbleed Recovery for System Administrators | Electronic Frontier Foundation
  223. Full Disclosure: Re: heartbleed OpenSSL bug CVE-2014-0160 - iptables rules to block heartbeat queries
  224. The Heartbleed Hit List: The Passwords You Need to Change Right Now - US centric and very very small list
  225. Superfish CA + Komodia vulnerability test
  226. When Things Attack - The Akamai Blog - SSHowDowN Proxy and a 12-year old vulnerability in OpenSSH, "The Internet of unpatchable Things"
  227. CPU.fail - Zombieload, RIDL, Fallout, Meltdown
  228. GitHub - speed47/spectre-meltdown-checker: Spectre & Meltdown vulnerability/mitigation checker for Linux
  229. Reading Privileged Memory with a Side Channel - Lenovo mitigation strategy against Spectre and Meltdown, advisories, updates for specific models, ... status page.
  230. Wie man seine IT vor Spectre und Meltdown schützt | iX
  231. Protect your Fedora system against Meltdown - Fedora Magazine
  232. Update on the Meltdown & Spectre vulnerabilities - Fedora Magazine
  233. oss-security - backdoor in upstream xz/liblzma leading to ssh server compromise
  234. CVE-2024-3094- Red Hat Customer Portal - xz/liblzma
  235. Backdoor in upstream xz/liblzma leading to SSH server compromise | Hacker News
  236. [Bug]: Upstream compromised? Or is the compromise? · Issue #92 · tukaani-project/xz · GitHub
  237. Everything I know about the XZ backdoor (boehs.org)
  238. xz-utils backdoor situation (CVE-2024-3094) · GitHub (thesamesam)
  239. XZ Utils backdoor- by Lasse Collin, xz maintainer
  240. A Microcosm of the interactions in Open Source projects - on the example of the xz/liblzma vulnerability
  241. xz/liblzma: Bash-stage Obfuscation Explained - gynvael.coldwind//vx.log
  242. Filippo Valsorda: "I'm watching some folks reverse engineer the xz backdoor, sharing some *preliminary* analysis with permission. The hooked RSA_public_decrypt verifies a signature on the server's host key by a fixed Ed448 key, and then passes a payload to system(). It's RCE, not auth bypass, and gated/unreplayable." — Bluesky
  243. xz-Attacke: Hintertür enträtselt, weitere Details zu betroffenen Distros | heise online
  244. XZ Utils backdoor - Wikipedia
  245. GitHub - skeeto/endlessh: SSH tarpit that slowly sends an endless banner
  246. Ins Internet - Mit Sicherheit (BSI fuer Buerger)
  247. BSI - Newsletter Archiv
  248. Allianz für Cyber-Sicherheit (ACS)
  249. mobilsicher.de – Sicher und informiert mit Smartphone, Tablet und Co.
  250. WID CERT-Bund - Warn- und Informationsdienst des Computer Emergency Response Team der Bundesverwaltung
  251. Digitale Signaturen des CERT-Bund
  252. heise Security - c't-Browsercheck
  253. Gaijin.at - Freeware und Online-Tools
  254. CERT Coordination Center
  255. DFN-CERT Zentrum für sichere Netzdienste
  256. heise Security
  257. All Alerts - Security Database
  258. CVE - Common Vulnerabilities and Exposures (cve.mitre.org)
  259. CVE security vulnerability database. Security vulnerabilities, exploits, references and more (cvedetails.com) - searchable by vendor and product
  260. CVE.report - Home
  261. CVE Trends - crowdsourced CVE intel
  262. GitHub - CVEProject/cvelist: Pilot program for CVE submission through GitHub
  263. Common Vulnerability Scoring System SIG - CVSS
  264. Product Security Vulnerability Management - An Open Approach to Vulnerability Management, Red Hat’s Methodology
  265. Packet Storm - security
  266. de.comp.security.firewall - FAQ
  267. Counterpane Internet Security, Inc.
  268. SecurityFocus
  269. Netzwerkcheck | heise Security
  270. List of TCP and UDP port numbers - Wikipedia, the free encyclopedia
  271. Service Name and Transport Protocol Port Number Registry (IANA)
  272. SG TCP/IP Ports Database (speedguide.net)
  273. FireHOL, Pre-defined service definitions. - descriptions of common applications and their ports
  274. common applications' ports
  275. Open Port Check Tool (CanYouSeeMe)
  276. Outgoing Port Tester
  277. SANS - Internet Storm Center - Cooperative Cyber Threat Monitor And Alert System
  278. Snort.org
  279. Welcome to Security Idiots!!
  280. Full Disclosure Mailing List (seclists.org)
  281. AbuseIPDB - IP address abuse reports - Making the Internet safer, one IP at a time
  282. Internet und Sicherheit - Sicherheit im Internet
  283. The SANS Institute ~ SysAdmin, Audit, Network, Security - Computer Security Education and Information Security Training
  284. Netzwerkrouter xDSL-Router Datensicherheit
  285. Router auf WPS-Lücken testen | heise Security
  286. Großstörung bei der Telekom: TR069-Test - Router auf TR-069 testen | heise online
  287. National Security Agency
  288. Willkommen auf der Seite trojaner-info ! - Viren, Trojaner, Trojanische Pferde, Trojanerhilfe und andere Infos
  289. DShield. - Distributed Intrusion Detection System
  290. SimplytheBest Spyware information spyware blockers spyware cleaners
  291. Safe Browsing Tool | WOT (Web of Trust)
  292. SiteAdvisor - Analysis (McAfee)
  293. Identify websites involved in malware incidents, fraudulent and spamming activities (urlvoid.com)
  294. IP Address Blacklist Checker Tool (ipvoid.com)
  295. Sucuri SiteCheck - Free Website Malware Scanner
  296. IBM Zurich Research Laboratory, Computer Science, Information Security, Portal page, Infosec
  297. Microsoft Security and Privacy
  298. Logs Digging SafeHack.com
  299. Kurt Seifried - information security
  300. the_simple_computer | Research for Security & Privacy
  301. SecurityTube - Watch, Learn and Contribute Computer Security Videos
  302. [Chaos CD] [Sicherheit im ISDN] Inhaltsverzeichnis
  303. Offensive Security Blog
  304. All About Skimmers — Krebs on Security - watch out where you slip your card in ...
  305. Thunderspy - When Lightning Strikes Thrice: Breaking Thunderbolt 3 Security
  306. Qualifizierte elektronische Signatur – Wikipedia
  307. Unser Service & Support-Angebot - Bundesdruckerei D-TRUST Signaturkarten, Signed Data Service, sign-me
  308. Chipkartenleser-Shop Shop Zertifikat BDR - sign-me Zertifikat und Chipkartenleser für Personalausweis
  309. Open eCard - platform independent open source implementation of the eCard-API-Framework, Personalausweis, Gesundheitskarte, ...
  310. AusweisApp | Flathub
  311. DSS Demonstration WebApp - European Commission CEF Digital Signature Service (DSS)
  312. GitHub - esig/dss: Digital Signature Service : creation, extension and validation of advanced electronic signatures
  313. Vault 7 Megathread - Technical Analysis & Commentary of the CIA Hacking Tools Leak : netsec
  314. Re: Wie erkenne ich ein infiziertes System? | Forum - heise online - (Cisco Talos deckt riesiges Router- und NAS-Botnetz auf)
  315. A Few Thoughts on Cryptographic Engineering – Some random thoughts about crypto. Notes from a course I teach. Pictures of my dachshunds.
  316. Web Security Research Papers - PortSwigger Research
  317. Open Source Security Platform | Snyk
  318. PDF Insecurity Website
  319. The Insecurity Industry - by Edward Snowden - Continuing Ed — with Edward Snowden
  320. GRAPHIC NOVEL | Netwars - war heise online netwars / out of CTRL, 2014
  321. UNREDACTED MAGAZINE by Michael Bazzell
  322. Exploit Disclosure: Turning Thunderbird into a Decryption Oracle | pseudorandom
  323. Berühmte Hacker, an die wir uns noch lange erinnern werden (Teil 5)
  324. Linux Security

    Security RSS feeds

  325. https://www.heise.de/security/rss/alert-news-atom.xml
  326. https://www.heise.de/security/rss/news-atom.xml
  327. http://de.trendmicro-europe.com/enterprise/security_info/rssinfo.php
  328. Web-based DNS Randomness Test | DNS-OARC
  329. porttest.dns-oarc.net -- Check your resolver's source port behavior | DNS-OARC
  330. http://www.securityfocus.com/rss/vulnerabilities.xml
  331. Sicherheitstacho.eu

    Vulnerability Special - update your system!

  332. Download details: Step-by-Step Guide to Securing Windows XP Professional in Small and Medium Businesses
  333. Kurt Seifried - Information security / OS / Microsoft / Port informaiton in windows
  334. www.SecurityXploded.com

    If THEY are after you

  335. Forensic Methodology Report: How to catch NSO Group’s Pegasus | Amnesty International
  336. investigations/2021-07-18_nso at master · AmnestyTech/investigations · GitHub - Pegasus
  337. GitHub - mvt-project/mvt: MVT is a forensic tool to look for signs of infection in smartphone devices - like Pegasus
  338. Here’s how to check your phone for Pegasus spyware using Amnesty’s tool - The Verge
  339. Pegasus Spyware: How It Works and What It Collects - by Kim Zetter - Zero Day
  340. FBI document shows what data can be obtained from encrypted messaging apps - The Record by Recorded Future
  341. FBI Document Says the Feds Can Get Your WhatsApp Data -- in Real Time - Rolling Stone

    Virus

  342. AntiVirus | heise Security
  343. Desinfect | Forum - heise online
  344. AV-Comparatives
  345. VirusLibrary - Virus Information Library and Search
  346. Symantec AntiVirus Research Center
  347. perComp-Verlag GmbH - Anti-Virus-Lösungen mit F-PROT Scanning-Engine
  348. ftp.f-prot.com/pub directory
  349. The WildList Organization International (virus incidents)
  350. Executable file extensions - which you should not open (semi-)automatically
  351. Computer Viruses - Theory and Experiments - 1984, Fred Cohen
  352. VirusTotal - on 42.zip detection
  353. Interactive Online Malware Analysis Sandbox - ANY.RUN
  354. ID Ransomware - Upload a ransom note and/or sample encrypted file to identify the ransomware that has encrypted your data.
  355. The No More Ransom Project

    Email encryption

  356. Email encryption - Wikipedia, the free encyclopedia
  357. Aaron Toponce : Setting Up Mutt With S/MIME And PGP/MIME
  358. Volksverschlüsselung
  359. MSXFAQ.DE:SMIME mit Outlook
  360. DANE SMTP Validator
  361. MessagePack to JSON Converter - Tool Slick
  362. saltpack - a modern crypto messaging format - NaCl and MessagePack
  363. GitHub - keybase/saltpack: a modern crypto messaging format

    GnuPG / PGP

  364. my GnuPG / PGP page

    S/MIME

  365. S/MIME - Wikipedia, the free encyclopedia
  366. S/Mime and PGP Products and Interoperability
  367. StartSSL™ Certificates & Public Key Infrastructure - also offers free client certificates
  368. Certificates for secure electronic mail | Actalis S.p.A.
  369. EmailCertificates - CAcert Wiki - S/MIME, sadly with newer browsers only the OpenSSL way works
  370. Welcome to CAcert.org - the CAcert root certificate that you may need to install if someone uses a CAcert S/MIME certificate
  371. Issue Your Own Self-Signed S/MIME Certs with OpenSSL

    Crypto

  372. GED Home - Make the Switch - Global Encryption Day
  373. The International Association for Cryptologic Research
  374. The CrypTool Portal - CrypTool Portal - CrypTool-Online (CTO) runs in a browser and provides a variety of encryption and cryptanalysis methods including illustrated examples and tools like password generator and password meter. - JCrypTool (JCT) is an open-source e-learning platform, allowing to experiment comprehensively with cryptography on Linux, macOS, and Windows.
  375. Cryptography - Wikipedia, the free encyclopedia
  376. GitHub - claucece/useful-crypto-resources: A place for useful crypto-related resources plus some of my fav stuff
  377. index [CryptoParty.]
  378. overview_tools [CryptoParty.]
  379. documentation:handbook [CryptoParty.]
  380. Crypto für alle
  381. Verschlüsselung | heise online
  382. Kryptographie in der IT - Empfehlungen zu Verschlüsselung und Verfahren | heise Security
  383. The Birthday Paradox
  384. Shamir's secret sharing - Wikipedia (en)
  385. Shamir’s Secret Sharing – Wikipedia (de)
  386. ssss: Shamir's Secret Sharing Scheme
  387. Debian -- Details of package ssss in stable - Shamir's secret sharing scheme implementation
  388. Shamir's Secret Sharing - Wikipedia, the free encyclopedia
  389. digital-scurf → software → libgfshare - A secret sharing library, Shamir's method for secret sharing in the Galois Field 2^8
  390. digital-scurf → software → secretfs - A secret sharing filesystem, to combine secrets made by libgfshare
  391. GitHub - lapets/shamirs: Minimal pure-Python implementation of Shamir's Secret Sharing scheme.
  392. GitHub - cyphar/paperback: Paper backup generator suitable for long-term storage.
  393. GitHub - moserware/SecretSplitter: A program to split up secrets to go along with the blog post "Life, Death, and Splitting Secrets" at Moserware.com
  394. SECCURE Elliptic Curve Crypto Utility for Reliable Encryption
  395. Vault by HashiCorp
  396. GitHub - hashicorp/vault: A tool for secrets management, encryption as a service, and privileged access management
  397. Using Vault: A Practical Guide - ChairNerd
  398. CryptNET: Free Documentation Project
  399. Free Encryption / Cryptographic Software, Free On the Fly Encryption, Steganography, Free Disk Encryption Tools, Free Public Key Encryption Software (thefreecountry.com)
  400. STEGANOGRAPHY SOFTWARE
  401. Outguess - Steganography & Watermarking
  402. Darkside Technologies - ICE, SNOW, Gifshuffle
  403. BetterCrypto⋅org - Applied Crypto Hardening for system administrators
  404. Cryptix - Welcome to Cryptix
  405. Ross Anderson's Home Page
  406. Serpent home page
  407. Curve25519 - Wikipedia, the free encyclopedia
  408. SafeCurves: Introduction - choosing safe curves for elliptic-curve cryptography
  409. Implementing Curve25519/X25519: A Tutorial on Elliptic Curve Cryptography (PDF) - Martin Kleppmann
  410. Things that use Curve25519 - X25519
  411. Things that use Ed25519
  412. The ChaCha family of stream ciphers
  413. ChaCha Usage & Deployment
  414. Code Book Cipher Challenge Solutions
  415. Unsorted Crypto Links (Lutz Donnerhacke)
  416. Handbook of Applied Cryptography
  417. Cryptography - This document describes a condensed, English version of the cryptografie course given by Gerard Tel.
  418. SILC Secure Internet Live Conferencing
  419. cryptolabs.org | Cryptolabs Amsterdam
  420. CrossCrypt Open Source AES and TwoFish Linux compatible on the fly encryption for Windows XP and Windows 2000.
  421. CrypTool - Homepage - eLearning-Programm für Kryptologie
  422. VeraCrypt - Free Open source disk encryption with strong security for the Paranoid - based on former TrueCrypt
  423. GitHub - HACKERALERT/Picocrypt: A very small, very simple, yet very secure encryption tool.
  424. How to Encrypt USB Flash Drives Using Truecrypt | geekyprojects.com
  425. Encrypting an USB Drive with True Crypt
  426. GitHub - covert-encryption/covert: An encryption format offering better security, performance and ease of use than PGP.
  427. FiloSottile/age: A simple, modern and secure encryption tool (and Go library) with small explicit keys, no config options, and UNIX-style composability.
  428. GitHub - FiloSottile/age: A simple, modern and secure encryption tool (and Go library) with small explicit keys, no config options, and UNIX-style composability.
  429. age package - filippo.io/age - pkg.go.dev
  430. GitHub - str4d/rage: A simple, secure and modern encryption tool (and Rust library) with small explicit keys, no config options, and UNIX-style composability.
  431. GitHub - jojonas/pyage: Actually good encryption. In Python.
  432. GitHub - FiloSottile/mkcert: A simple zero-config tool to make locally trusted development certificates with any names you'd like.
  433. tilde.club wiki – Don’t use VPN services
  434. Bitmask - Encrypted communication for mere mortals, Email and VPN
  435. CalyxVPN - Calyx Institute
  436. Choosing the VPN That's Right for You | Surveillance Self-Defense
  437. Censorship circumvention and encrypting your traffic with a VPN | Security Education Companion
  438. Mullvad VPN - Privacy is a universal right
  439. VPN for Privacy & Security | IVPN | Resist Online Surveillance
  440. SwissVPN - Surf the safer way!
  441. Perfect Privacy VPN Anbieter: Schnell, anonym & sicher im Internet
  442. VPN Anbieter Vergleich
  443. VPN Service Provider – Vergleich 2014 | Test und Erfahrungen
  444. VPN Comparison by That One Privacy Guy
  445. Best VPN for US citizens to avoid the NSA and FBI Snooping
  446. VPN Anbieter kostenlos > sipgate Anleitung
  447. How to Set Up an OpenVPN Server on a Raspberry Pi - DZone IoT
  448. Raspberry Pi VPN Server: Build Your Own Virtual Private Network
  449. openVPN/CommunityTunnel - CAcert Wiki
  450. Do you need a VPN with Tor? How to use a VPN with Tor - VPN over Tor, Tor over VPN
  451. VPN + Tor: Not Necessarily a Net Gain
  452. Cryptographic Right Answers — » Latacora
  453. EU-Richtlinie für "hochklassige Cybersicherheit" mit Nachschlüsseln - fm4.ORF.at - CryptoWars 2.0
  454. Signatures: The foundations of modern end-to-end encryption
  455. What is Lattice-Based Cryptography & Why You Should Care | by Wickr | Wickr Crypto + Privacy Blog | Medium
  456. Cryptology ePrint Archive: Report 2017/339 - ElsieFour: A Low-Tech Authenticated Encryption Algorithm For Human-to-Human Communication
  457. Beyond Eavesdropping: Adversarial Models for Secure Messaging (wickr.com)

    CryptoHisto

  458. CipherClerk Introduction
  459. BletchleyPark - Station X
  460. Die Rotor-Chiffriermaschine Enigma
  461. Enigma-Bildergalerie
  462. Index of /software/enigma/simulators
  463. Enigma-E Bouwpakket
  464. Enigma-E DIY Building Kit
  465. Enigma Replica Home Page
  466. Mathe Prisma Enigma
  467. Enigma - ein JAVA Applet
  468. Kryptografie / Einleitung

    Software

  469. my LibreOffice links
  470. gofoss.net - Digital freedom for all - Adopt free and open source software, protect your privacy, own your data.
  471. Libre Projects - open source hosted web services
  472. Open Source Alternatives to Proprietary Software
  473. Die Opensource-DVD und Download von Opensource und LibreOffice
  474. List of free and open-source software packages - Wikipedia, the free encyclopedia
  475. Free Software Directory - Free Software Foundation
  476. PrivacyTests.org: open-source tests of web browser privacy

    Firefox

  477. The new, fast browser for Mac, PC and Linux | Firefox
  478. Überflüssige Funktionen in Firefox deaktivieren - Privacy-Handbuch
  479. LibreWolf - A fork of Firefox, focused on privacy, security and freedom.
  480. Firefox Profilemaker
  481. Thunderbird — Software made to make email easier. — Mozilla
  482. Thunderbird Mail DE - deutsche Hilfe
  483. Junk Mail Controls - MozillaZine Knowledge Base
  484. Multiple identities per e-mail account - MozillaZine Knowledge Base
  485. Getting started with IMAP for Gmail - Gmail Help
  486. Using OAuth2 with Thunderbird and Gmail - Super Tech Crew
  487. Turn Thunderbird into the Ultimate Gmail IMAP Client
  488. Search operators you can use with Gmail - Gmail Help
  489. mozilla.org
  490. Camp Firefox | Die Firefox-Community
  491. holgermetzger.de | Mozilla Tipps und Tricks (Firefox, Thunderbird, Seamonkey)
  492. Firefox is eating your SSD - here is how to fix it - how things were in 2016 with old bad SSD drives
  493. Firefox: Ein Browser für Datenschutzbewusste – Firefox-Kompendium ⋆ Kuketz IT-Security Blog
  494. Security/Fingerprinting - MozillaWiki - preference privacy.resistFingerprinting
  495. GitHub - mozilla/policy-templates: Policy Templates for Firefox
  496. Wiederherstellen wichtiger Daten aus einem alten Profil | Hilfe zu Firefox
  497. Firefox 98.0, See All New Features, Updates and Fixes - new download behaviour
  498. Why Firefox connects to googleusercontet.com within 2 minutes of it reaching the internet? | Firefox Support Forum | Mozilla Support
  499. How to stop Firefox from making automatic connections | Firefox Help
    500. Firefox Extensions
  500. Keep your Firefox healthy with a quick checkup — Mozilla - Plugin Check
  501. Blocked Add-ons - software known to cause serious security, stability, or performance issues with Firefox
  502. Technical Details on the Recent Firefox Add-on Outage - Mozilla Hacks - the Web developer blog - ArmagAddon
    Firefox 57+ Quantum Extensions
  503. Firefox Multi-Account Containers – Get this Extension for 🦊 Firefox - lets you keep parts of your online life separated into color-coded tabs that preserve your privacy
  504. Temporary Containers – Add-ons für Firefox - Open tabs, websites, and links in automatically managed disposable containers
  505. Consent-O-Matic – Get this Extension for 🦊 Firefox
  506. Cookie AutoDelete :: Add-ons for Firefox
  507. uMatrix :: Add-ons for Firefox - A point-and-click matrix-based firewall, with many privacy-enhancing tools; similar to NoScript but not quite; when using with uBlock Origin disable the same lists there
  508. Firefox: uMatrix – Firefox-Kompendium Teil9 ⋆ Kuketz IT-Security Blog
  509. uBlock Origin :: Add-ons for Firefox - Finally, an efficient blocker. Easy on CPU and memory.
  510. Firefox: uBlock Origin – Firefox-Kompendium Teil2 ⋆ Kuketz IT-Security Blog
  511. uBlock Origin: Schutz gegen Tracker und Werbung • Kuketz IT-Security Blog - gute weitere Häkchen zu setzen
  512. Firefox: Zugriff auf lokale Adressen für Dritte blockieren - Filterliste für uBlock Origin
  513. Neat URL – Get this Extension for 🦊 Firefox - Remove tracking garbage from URLs.
  514. Skip Redirect – Get this Extension for 🦊 Firefox - Some web pages use intermediary pages before redirecting to a final page. This add-on tries to extract the final url from the intermediary url and goes there straight away if successful.
  515. NoScript Security Suite :: Add-ons for Firefox
  516. Decentraleyes – Add-ons for Firefox
  517. CanvasBlocker – Add-ons for Firefox - Blocks the JS-API for modifying <canvas> to prevent Canvas-Fingerprinting.</canvas>
  518. Dict.cc Translation :: Add-ons for Firefox
  519. withExEditor – Add-ons for Firefox - invoke your editor with TextArea fields; needs a host component as well
  520. xBrowserSync – Get this Extension for 🦊 Firefox - Browser syncing as it should be: secure, anonymous and free! Sync bookmarks across your browsers and devices, no sign up required.
  521. GNOME Shell integration – Add-ons for Firefox - You MUST install native connector for this extension to work, see Projects/GnomeShellIntegrationForChrome/Installation - GNOME Wiki
  522. AdNauseam
    523. Older Recommendable Firefox (<57) Extensions
  523. RequestPolicy - Firefox addon for Privacy and Security - RequestPolicyContinued beta, best install first; not really needed with uMatrix
  524. Disconnect :: Add-ons for Firefox - install before other filtering add-ons
  525. HeadingsMap :: Add-ons for Firefox
  526. Video DownloadHelper :: Add-ons for Firefox - download and convert Web videos
  527. iSebaro ~ ViewTube - a JavaScript application that allows viewing videos from video sharing web sites without needing to install Adobe Flash Player
  528. Exif Viewer :: Firefox Add-ons - Displays the Exif and IPTC data in local and remote JPEG images
  529. RC4 in Firefox abschalten - so geht's | NSA entschlüsselt Webserver-Daten angebl... | heise security news-Foren
  530. Qualys SSL Labs - Projects / SSL/TLS Capabilities of Your Browser (Experimental)
  531. Privacy Settings – Add-ons for Firefox - Alter Firefox's built-in privacy settings easily with a toolbar panel.
  532. Bloody Vikings! – Add-ons for Firefox - Simplifies the use of temporary e-mail addresses in order to protect your real address from spam.
  533. Invidition – Get this Extension for 🦊 Firefox - Redirects YouTube and Twitter to their alternative ads-free, privacy-friendly, interfaces.
    Be sure to read compatibility with uMatrix
  534. SPDX License Diff – Get this Extension for 🦊 Firefox
  535. Censor Tracker – Get this Extension for 🦊 Firefox
  536. Firefox Addons :: Mozilla Add-ons :: Add Features to Mozilla Software
  537. The Complete Firefox Privacy and Security Guide - BestVPN.com
  538. Knowledge Base - MozillaZine Knowledge Base
  539. About:config entries - MozillaZine Knowledge Base
  540. Brian's Blog: Mailto URLs in Firefox using mutt (archive.org)
  541. NewsForge | Using Firefox's mozex extension to call an external mail program
  542. Thunderbird Addons :: Mozilla Add-ons :: Add Features to Mozilla Software
  543. The Extensions Mirror - "Completing your XPI'rience" - Firefox, Thunderbird

    Pale Moon

  544. The Pale Moon Project homepage - Pale Moon is an Open Source, Goanna-based web browser available for Microsoft Windows and Linux

    Mail & News

  545. Gnus für Wintendos
  546. Mutt on Windows
  547. Mutt on Operating Systems
  548. OfflineIMAP - Overview - Software.Complete.Org
  549. Mailers - Mail User Agents (MUAs) HomePages (Sven Guckes)
  550. Newsreader - User Agents for NNTP aka Usenet (Sven Guckes)
  551. NewsReaders.com
  552. Web Browser and their HomePages - Quick Reference (Sven Guckes)
  553. browser.org
  554. WebAttack.com :: download freeware and shareware programs from the world's largest collection of Internet software.
  555. Miro HD Video Player | Free internet tv and video podcast player.
  556. Comparison of file synchronization software - Wikipedia

    Media

  557. GIMP - The GNU Image Manipulation Program
  558. GIMPshop.com - A GIMP hack by Scott Moschella
  559. Inkscape. Draw Freely.
  560. Scribus :: Open Source Desktop Publishing for Linux, Mac OS® X and Windows®
  561. blender.org - Home
  562. Open Clip Art Library Drawing Together
  563. Ghostscript, Ghostview and GSview
  564. VideoLAN - Free and Open Source software and video streaming solutions for every OS!
  565. Nicu's How-to - Howtos, tutorials and tricks - GIMP, Inkscape, OpenOffice.org, Fedora and more.

    GNUish

  566. Free Software Directory
  567. FTP Mirror List - GNU Project - Free Software Foundation (FSF)
  568. Cygwin
  569. GnuWin32 - maintained, last checked 2006-12-10
  570. Native Win32 ports of some GNU utilities - outdated (2003)
  571. DJGPP
  572. /pub/DJGPP directory Germany, Koblenz
  573. /pc/dos/djgpp/current directory Vienna, Austria
  574. DJGPP and related Links page

    Solaris

  575. Freeware for Solaris

    WNT SysUtils

  576. Systems Internals - Winternal Software
  577. SystemTools.com - Windows NT/2000 System Management Tools and Utilities
  578. SomarSoft Utilities
  579. Ext2 IFS For Windows

    Mix

  580. Oth Net Search Form (ftp)
  581. NAPALM FTP Indexer
  582. Free downloads encyclopedia - Softpedia
  583. heise online - Software-Verzeichnis
  584. Ultimate Boot CD
  585. FAQ - Text Based Programs - Current Versions (Sven Guckes)
  586. Converters and Filters - Convert Data from One Format to Another (Sven Guckes)
  587. The Readers - Free Software PDF readers.
  588. IrfanView - Freeware Graphic Viewer (Windows)
  589. Free graphic and photo viewer - XnView - GRAPHIC VIEWER
  590. Ralf Brown's Files
  591. PictView - a set of image viewers and converters (DOS)
  592. Pigdog Journal - DeCSS Distribution Center (it's not what you think it might be)
  593. Macecraft Software - Home of jv16 PowerTools and RegSupreme - formerly RegCleaner
  594. Freeware for Solaris
  595. OpenLDAP - community developed LDAP software
  596. Do It Yourself data recovery, file recovery, unformat, undelete, partition recovery and RAID 0 and RAID 5 recovery
  597. Life after Google III, Teil 3: Sehen, was Sinn macht - Netzwelt - SPIEGEL ONLINE
  598. CompletePlanet - discover and search 103,000 databases and specialty search engines
  599. gimmefonts.com - The largest free truetype font archive on the web
  600. Fonts.com - Download Mac and Windows Fonts
  601. Download Fonts - Jumbo.com
  602. Flash Kit: Fonts Home
  603. The UNTGZ homepage
  604. BpBatch homepage
  605. KL Codec Resource Site The K-Lite codec pack, quicktime alternative and real alternative.
  606. afreeCodec - Download Audio Codecs, Video Codecs, Software, Players, and Utilities for Free.
  607. .::Bsplay.com, bsplayer::. perfect player.
  608. VideoLAN - Free Software and Open Source video streaming solution for every OS!
  609. Streaming media recording: Wanna find easy to use yet powerful software to record streaming audio and video? Follow our guidelines to find the best freeware or shareware stream recorder.
  610. Tools - Video software and downloads - VideoHelp.com
  611. DriverHeaven.net
  612. Rage3D MOBILEMOD 4.0 | FINAL RELEASE CANDIDATE - Rage3D Discussion Area
  613. The R Project for Statistical Computing
  614. Computer Gripes
  615. spammimic - hide a message in spam
  616. ConflictSolver Resource Scheduler - Open Source Resource Scheduling Software for small companies and institutions. Written in Python, but unmaintained since 2003.
  617. Tablix - Free software for solving timetabling problems.
  618. FET - Free Evolutionary Timetabling software for automatically scheduling the timetable of a school, high-school or university
  619. Time Design - timetables for schools and training institutions.
  620. intime - This is a free, open source program for editing school time tables.
  621. OpenSTV | Software for Ranked-Choice Voting
  622. guillaumegildas/openSTV · GitHub - older fork as OpenSTV isn't free anymore
  623. Single Transferable Vote (archive.org) - sehr gute Erklärung der STV Wahlauszählung auf Deutsch
  624. STV - Single Transferable Vote (wahlrecht.de) - Übertragbare Einzelstimmgebung
  625. Condorcet Internet Voting Service - CIVS ranked-choice voting
  626. Civitas - Civitas is a new, secure voting system.
  627. GitHub - andrewcmyers/civs: Condorcet Internet Voting System
  628. PortableApps.com - Portable software for USB drives | Your Digital Life, Anywhereâ¢
  629. The Portable Freeware Collection
  630. winPenPack - The Portable Software Collection
  631. JonDonym - Sicher im Internet
  632. GitHub - RetroShare/RetroShare: RetroShare is a Free and Open Source cross-platform, Friend-2-Friend and secure decentralised communication platform.
  633. Flash Player Help
  634. AutoHotkey - Free Mouse and Keyboard Macro Program with Hotkeys and AutoText - for Windows
  635. Apache Agora (archive.org) - virtual community (mailing list) visualization tool
  636. Icinga » Monitor your entire Infrastructure with Icinga
  637. Sozi [Sozi] - a small program that can play animated presentations. SVG.
  638. Tryton - Modularity, scalability & security for your business
  639. ConfClerk - manage conference schedules from PentaBarf
  640. Alternative software and apps to your PC (Windows, Linux), Mac, iPhone, Android, Web/Online and other platforms. - AlternativeTo.net
  641. Slant - picking "the best" product
  642. Ninite - Install or Update Multiple Apps at Once - almost a package manager for Windows
  643. Etherpad
  644. Sites That Run Etherpad · ether/etherpad-lite Wiki · GitHub
  645. CryptPad.org - Collaboration and privacy
  646. CryptPad - Public instances
  647. Apache Wave - Welcome to Apache Wave (incubating)
  648. git-annex - allows managing files with git, without checking the file contents into git.
  649. Tarsnap - Online backups for the truly paranoid
  650. Cryptomator: Free Cloud Encryption for Dropbox & Others - Linux, Windows, Mac, iOS, Android
  651. Cryptomator: Endlich ist unsere Cloud Ende-zu-Ende-verschlüsselt - Golem.de
  652. GitHub - HACKERALERT/Picocrypt: A very small, very simple, yet very secure encryption tool.
  653. Cinderella : Cinderella - Interactive Geometry Software
  654. Wahay - audio conferences, Mumble over Tor Onion Services
  655. CoyIM | Safe and secure chat client - onion - Jabber/XMPP over Tor Onion Services
  656. A Beginner's Guide to Salt | Linode - A look into Salt's primary components, features, and configurations for the new SaltStack user

    Video Conferencing

  657. Results: Free Software voice & video testing - 2012
  658. Videokonferenzen müssen keine Datenschleudern sein | Digitalcourage - Jitsi, BigBlueButton, NextCloud Talk
  659. Hinweise für Berliner Verantwortliche zu Anbietern von Videokonferenzdiensten (PDF) - Berliner Beauftragte für Datenschutz und Informationsfreiheit, BlnBDI
  660. #videochat_deutsch:matrix.org - Matrix Gruppe, informiert über deutschsprachige Video-Chats, die frei zugänglich sind.
  661. Going Full Send on my WFH A/V setup – Jeremy Eder's Blog
    Jitsi
  662. Jitsi.org - develop and deploy full-featured video conferencing - Open Source Video Calls and Chat
  663. Jitsi Meet - their main instance
  664. Community-run instances | Jitsi Meet
  665. Videokonferenzen müssen keine Datenschleudern sein | - und einige Jitsi Instanzempfehlungen
  666. Videochat Server (archive.org) - some public Jitsi servers, outdated, 2021-10
  667. random-redirect/jitsi_servers.lst at master · tosterkamp/random-redirect · GitHub
  668. 8x8 Video Meetings - commercial Jitsi instance, 8x8 employs most Jitsi developers
  669. Kurzanleitung: Jitsi Meet Videokonferenz per Browser oder App ⋆ Kuketz IT-Security Blog
  670. Jitsi Meet: Erste Hilfe bei Problemen ⋆ Kuketz IT-Security Blog
  671. Video-Konferenzen mit Jitsi Meet | Weitblick Blog
  672. GitHub - systemli/ansible-role-jitsi-meet: Ansible role to install & configure Jitsi Meet - rol(l|e) your own server
  673. Jitsi Best Practice und Skalierung | NETWAYS GmbH - eigener Jitsi Server
  674. Jitsi Meet is Free open source self-hosted videoconferencing that just works, no registration / account needed. Try it at https://meet.jit.si : selfhosted - Firefox causing problems in Jitsi (2019/2020)
  675. 100% support for Firefox (and other non-Chrome browsers) · Issue #4758 · jitsi/jitsi-meet · GitHub - Firefox causing problems in Jitsi (2020)
  676. Jitsi Hacks | Jitsi Hacks – Extending Jitsi Meet using injected scripts
  677. Calla - voice and video chat that simulates natural conversation; using Jitsi Meet adding audio spatialization, to be able to create virtual meeting rooms.
  678. JitsiCloud - Giebel.IT - DSGVO-konforme Videokonferenz- und Speicherlösung; für Schulen, Gemeinden, Vereine, Unternehmen und Organisationen
    BigBluebutton
  679. BigBluebutton - BigBlueButton enables universities and colleges to deliver a high-quality learning experience to remote students.
  680. Video conferencing with BigBlueButton [LWN.net]
  681. GitHub - bigbluebutton/bbb-install: BASH script to install BigBlueButton in 30 minutes.
  682. File Exfiltration via Libreoffice in BigBlueButton and JODConverter - Hanno's blog
  683. BigBlueButton - Tutorials zur Videokonferenzsoftware
  684. BigBlueButton | Ferdinand Soethe - BigBlueButton-Praxishandbuch
  685. Moodle - Open-source learning platform | Moodle.org
  686. Lernerfolg mit Moodle
  687. Demo-Moodle Lehrerfortbildung-BW
  688. Moodle, virtuelles Arbeiten und eLearning - Kursvorlagen
  689. ilias.de - Open-Source Learning Management System
  690. Aktuelles [cyber4EDU] - BigBlueButton, Moodle und Matrix für Schulen
  691. Netzwerk Freie Schulsoftware | Digitalcourage
  692. Das Digitalcourage-Bildungspaket | Digitalcourage
  693. LEOPARD – LEOPARD-Lernorte - Element, Discourse, Peertube, Nextcloud, Moodle
  694. schul-frei - Hub ("Knotenpunkt") für freie Software in der Bildung: Hier engagieren sich mehrere Organisationen und Einzelpersonen.
  695. Medien in die Schule - Werkzeugkasten Freie Software
  696. MintApps – Simulationen, Animationen und Tools - Eine bunte Sammlung an Simulationen, Animationen und Tools zu naturwissenschaftlichen Fächern.
  697. Lerntools - Sammlung datensparsamer Tools für den interaktiven digitalen Unterricht
  698. Serlo – Die freie Lernplattform - Mathe, Sprache, Nachhaltigkeit, Biologie
  699. Physik Lernen mit Physikon - lexikon homepage studium schule hausaufgabe buch referat facharbeit formelsammlung hausaufgaben
  700. Wir lernen online - Fachportale, freie Bildungsmaterialien
    OpenTalk
  701. OpenTalk - State-of-the-art secure video conferencing | OpenTalk
  702. OpenTalk Videokonferenzen - adminForge
  703. About our OpenTalk instance : tchncs.de
  704. OpenTalk | Knowledge Base (mailbox.org)
    705. eduMEET
  705. eduMEET – web-based videoconferencing platform
    Zoom (do not use)
  706. Zoom privacy: Your video conferences aren’t as private as you think
  707. Zoom Meetings Do Not Support End-to-End Encryption
  708. Videokonferenz-Software: Ist Zoom ein Sicherheitsalptraum? | heise online
  709. Not Using Zoom — Webmink In Draft
    Skype (do not use)
  710. Brave New Skyping World Revisited | Torsten's Thoughtcrimes
  711. Ten Reasons Why You Should Boycott Skype | Torsten's Thoughtcrimes
  712. Microsoft seeks patent for spy tech for Skype - Computerworld

    More Misc

  713. palava.tv - palava is a WebRTC based communication platform.
  714. SparkleShare - Self hosted, instant, secure file sync
  715. Cloud Hosting - Bitnami - deploy apps with native installers, as virtual machines, or in the cloud
  716. Docear - Docear is a unique solution to academic literature management, i.e. it helps you organizing, creating, and discovering academic literature.
  717. Zamzar - video converter, audio converter, image converter, eBook converter - online converter of 1000 file formats
  718. F*EX - File EXchange - Frams' Fast File EXchange
  719. F*EX - File EXchange CLI client - perl fex.pl installer
  720. Syncthing - Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized.
  721. Dateisynchronisation mit Syncthing
  722. Syncthing: KeePass-Datenbank zwischen PC und Android synchronisieren – Passwörter Teil3 ⋆ Kuketz IT-Security Blog
  723. OnionShare - an open source tool that lets you securely and anonymously share a file of any size
  724. GitHub - RobinLinus/snapdrop: A Progressive Web App for local file sharing
  725. Kodi | Open Source Home Theatre Software
  726. Play with Docker Classroom
  727. Docker Playground
  728. LinuxServer - community Docker images
  729. jrnl- The Command Line Journal - Collect your thoughts and notes without leaving the command line
  730. Rosetta Stone for Unix - What do they call that (command) in this world?
  731. Awesome Self Hosted - A directory of free software solutions and web applications which can be hosted locally
  732. awesome-selfhosted - A list of Free Software network services and web applications which can be hosted on your own servers
  733. Awesome Privacy | awesome-privacy - A curated list of services and alternatives that respect your privacy
  734. ExifTool by Phil Harvey
  735. Pandoc - a universal document converter, from markdown dialects to various text, word processors and layout formats
  736. Modular online encoding, encryption and conversion tool — Cryptii
  737. contained.af - Know your surroundings... The hottest, nerdiest new game in town. A stupid game for learning about containers, capabilities, and syscalls.
  738. MRTG - Tobi Oetiker's MRTG - The Multi Router Traffic Grapher
  739. RRDtool - About RRDtool
  740. Cacti® - The Complete RRDTool-based Graphing Solution
  741. HackMD - Collaborative markdown notes
  742. GitHub - hackmdio/codimd: CodiMD - Realtime collaborative markdown notes on all platforms.
  743. Aggie.io - A collaborative painting application
  744. pdfpc - PDF Presenter Console - A presenter console with multi-monitor support for PDF files.
  745. Paint - if you're missing original ugly MS-Windows UI look and feel aesthetics ... all Web Components in browser
  746. JS Paint - and something similar but more complete
  747. edit.photo • The free online Photo Editor in your Browser
  748. Franz – a free messaging app for Slack, Facebook Messenger, WhatsApp, Telegram and more
  749. Software für technische Dokumentation: The Ultimate Expert Choice
  750. GitHub - aviaryan/awesome-no-login-web-apps: :star2: Awesome (free) web apps that work without login
  751. Rapla - Rapla is a flexible multi-user resource and event planing system.
  752. Taskwarrior - What's next? - manages your TODO list from the command line
  753. Taskwarrior - Upgrading to Taskwarrior 3 - Taskwarrior
  754. Timewarrior - Done yet? - tracks time from the command line; also interfaces with Taskwarrior
  755. GitHub - vit-project/vit: VIT is a lightweight, fast, curses-based front end to Taskwarrior
  756. Recurring tasks with taskwarrior
  757. GitHub - ralphbean/bugwarrior: Pull github, bitbucket, and trac issues into taskwarrior
  758. :: holidata.net :: - international holiday data Taskwarrior and Timewarrior use
  759. gtimelog - A time tracking app with GUI
  760. GitHub - pimutils/khal: CLI calendar application
  761. Planner | Task manager with Todoist support designed for GNU/Linux 🚀.
  762. GitHub - almarklein/timetagger: Tag your time, get the insight
  763. Zim - a desktop wiki
  764. Standard Notes | A Simple And Private Notes App
  765. grouprise - eine Internet-Plattform für eure Stadt oder Region
  766. Open Source Game Clones
  767. GitHub - warner/magic-wormhole: get things from one computer to another, safely
  768. GitHub - saljam/webwormhole: Password authenticated WebRTC.
  769. Graphmasters - NUNAV - No more traffic jams!
  770. FreeCAD: Your own 3D parametric modeler
  771. GitHub - yrutschle/sslh: Applicative Protocol Multiplexer (e.g. share SSH and HTTPS on the same port)
  772. GitHub - HouzuoGuo/laitos: Top geek's survival kit - personal assistant over satellite/telephone/SMS/chatbot, plus web infrastructure servers (DNS, HTTP, SMTP, SNMP)
  773. Empfehlungsecke ⋆ Kuketz IT-Security Blog - Messenger, Browser-Add-ons, Suchmaschinen, ...
  774. [Mer]Curius | Datenschutz im digitale Alltag
  775. PrivacyTools - Encryption Against Global Mass Surveillance
  776. SQuirreL SQL Client Home Page
  777. GitHub - sshuttle/sshuttle: Transparent proxy server that works as a poor man's VPN. Forwards over ssh. Doesn't require admin. Works with Linux and MacOS. Supports DNS tunneling.
  778. ASCII Art Generator - Online "HD" Color Image to Text Converter
  779. SysEleven Shared Secrets
  780. GitHub - acnagy/chaos-scheduler: ☀🌧⚡⛅ vs. 💻✨
  781. Big Pile of Vim-like
  782. Opencast Video Solution | The free and open source solution for automated video capture, management, and distribution at scale.
  783. Elvish Shell
  784. f.lux: software to make your life better - makes the color of your computer's display adapt to the time of day; AKA Night Light in GNOME or RedShift
  785. FutureTrust Signing & Sealing Service (SigS) - needs eID-Client
  786. Wacom drawing tablets track the name of every application that you open | Robert Heaton - with snooping the snoopers
  787. Data Removal: Darik's Boot and Nuke - DBAN - for all those USB sticks you find on the ground or plugged into a wall.. also from heise Download
  788. Top 10 open source tools for working from home | Opensource.com
  789. Corona: Technik-Tipps fürs Homeoffice | Digitalcourage
  790. Activities/FreeSoftware4RemoteWorking - FSFE Wiki
  791. Remote Communication - LibrePlanet
  792. Digitale Konferenzen — #gnuHU
  793. Übersicht Online-Konferenz-Tools - Support - Confluence Netzbegruenung
  794. Remote presence tools for social distancing - anarcat
  795. Open Broadcaster Software | OBS - broadcast multiple video sources
  796. Take Remote Worker/Educator webcam video calls to the next level with OBS, NDI Tools, and Elgato Stream Deck - Scott Hanselman
  797. Enabling Video Streaming for Remote Learning with NGINX and NGINX Plus - NGINX - using OBS
  798. Desktop and media video streaming server with OBS, nginx, RTMP, HLS and DASH – bitkeks.eu
  799. Live Streaming Equipment: Studio Setup Guide on the Cheap | Wowza
  800. Low-Latency HLS vs. WebRTC: What to Know Before Choosing a Protocol
  801. Icecast - free server software for streaming multimedia; stream your OBS
  802. Owncast - a self-hosted live video and web chat server for use with existing popular broadcasting software
  803. Building a live video streaming website - Part 1 - Start Streaming!
  804. GitHub - benwilber/boltstream: Boltstream Live Video Streaming Website + Backend
  805. How to thrive working from home
  806. Dangerzone - Take potentially dangerous PDFs, office documents, or images and convert them to a safe PDF.
  807. Share and accept documents securely - SecureDrop is an open source whistleblower submission system that media organizations and NGOs can install to securely accept documents from anonymous sources.
  808. When security matters: working with Qubes OS at the Guardian | | The Guardian - SecureDrop on Qubes
  809. LiteCLI - A command line interface for SQLite with auto-completion and syntax highlighting.
  810. DB Browser for SQLite
  811. Image metadata viewer
  812. Identity, email and document verification made easy with Vereign | Vereign
  813. Joplin - an open source note taking and to-do application with synchronisation capabilities
  814. GitHub - BurntSushi/ripgrep: ripgrep recursively searches directories for a regex pattern
  815. Share and accept documents securely - SecureDrop
  816. WebTorrent - Streaming browser torrent client
  817. lichess.org • Free Online Chess
  818. No More Medium. Build Your Own Site, Please.
  819. Scribe - An alternative frontend to Medium - replace medium.com by scribe.rip
  820. GitHub - nebula-chat/chatengine: Open source mtproto server written in golang with compatible telegram client
  821. App | E-Rezept
  822. GitHub - gematik/E-Rezept-App-Android
  823. GitHub - gematik/E-Rezept-App-iOS: https://gematik.github.io/E-Rezept-App-iOS/
  824. Potato Presenter - Easily create great presentations
  825. Mehr Datenschutz für alle mit dem TinyCheck-Tool von Kaspersky | Kaspersky
  826. GitHub - KasperskyLab/TinyCheck: TinyCheck allows you to easily capture network communications from a smartphone or any device which can be associated to a Wi-Fi access point in order to quickly analyze them. This can be used to check if any suspect or malicious communication is outgoing from a smartphone, by using heuristics or specific Indicators of Compromise (IoCs). In order to make it working, you need a computer with a Debian-like operating system and two Wi-Fi interfaces. The best choice is to use a Raspberry Pi (2+) a Wi-Fi dongle and a small touch screen. This tiny configuration (for less than $50) allows you to tap any Wi-Fi device, anywhere.
  827. Intigriti - Bug Bounty & Agile Pentesting Platform
  828. Non-Profit Computer Security Consultancy - Radically Open Security
  829. Engelsystem - Online-Tool für Helfer- und Schichtplanung auf großen Events
  830. GitHub - vaguileradiaz/tinfoleak: The most complete open-source tool for Twitter intelligence analysis
  831. nymea - The Open IoT Stack
  832. Smart gardening without coding - all free and open source - Hackster.io
  833. GitHub - bcpierce00/unison: Unison file synchronizer - Unison is a file-synchronization tool for POSIX-compliant systems (e.g. *BSD and GNU/Linux), macOS and Windows
  834. Earthstar - Sync stuff you care about with people you know. Earthstar is a specification and Javascript library for building online tools you can truly call your own.
  835. GLPI Project - open source service management software to manage Helpdesk and IT assets
  836. The Lino framework — Lino - linked objects database schema
  837. Fix problems that block programs from being installed or removed - Microsoft Support - a troubleshooter from MS that is supposed to help you shoot the trouble MS brought to you
  838. dupeGuru | finds duplicate files
  839. FreeTube - The Private YouTube Client
  840. EteSync - Secure Data Sync - Secure, end-to-end encrypted, and privacy respecting sync for your contacts, calendars, tasks and notes.
  841. Dante configuration -- Minimal client configuration - using socksify
  842. Home Assistant - Open source home automation that puts local control and privacy first
  843. Paperless-ngx - open-source document management system that transforms your physical documents into a searchable online archive
  844. Paperwork - Personal document management made fast and easy - OpenPaperwork
  845. GitHub - ente-io/ente: Fully open source, End to End Encrypted alternative to Google Photos and Apple Photos
  846. OctoPrint.org - The snappy web interface for your 3D printer.
  847. GitHub - mckinsey/causalnex: A Python library that helps data scientists to infer causation rather than observing correlation.
  848. Reticulum Network - Reticulum is the cryptography-based networking stack for building local and wide-area networks with readily available hardware.
  849. Table Convert Online - Make it easier to work with tables
  850. Everything Is Broken - The Message - Medium

    Password Generators

  851. The Problem with Passwords
  852. MD5 File - HTML5 File Hash Online Calculator - MD5, SHA1, SHA2 (SHA-256), SHA-384, SHA-512 - local in the browser
  853. Bcrypt Hash Generator & Verifier
  854. KeePassXC Password Manager - KeePassXC is a community fork of KeePassX, the cross-platform port of KeePass for Windows.
  855. KeePassDX - for Android; secure and open source password manager compatible with KeePass files (version 1 to 4)
  856. KeePassDX | F-Droid - Free and Open Source Android App Repository
  857. Passwort-Manager KeePassXC (Linux) und KeePassDX (Android) mit YubiKey verwenden - coding.blatt
  858. KeePass Password Safe - KeePass is a free open source password manager, which helps you to manage your passwords in a secure way. The original only for Windows.
  859. KeePassX - outdated last release Oct-2016
  860. AuthPass - Password Manager | AuthPass.app Password Manager - works with KeePass kdbx 3 database files
  861. GitHub - dani-garcia/vaultwarden: Unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs
  862. Open Source Password Management Solutions | Bitwarden
  863. Password Safe - Password Safe allows you to safely and easily create a secured and encrypted user name/password list.
  864. Pass: The Standard Unix Password Manager - gpg based
  865. gopass - the team password manager - gpg based, rewrite of Pass in Go
  866. GitHub - micahflee/passphraseme: A quick and simple cryptographically secure script to generate high entropy passphrases using EFF's wordlists
  867. xkcd: Password Strength - why Tr0ub4dor&3 is a bad password choice
  868. Agile Blog | Toward Better Master Passwords
  869. Myths about /dev/urandom [2uo]
  870. CryptNET: Passgen - uses /dev/random (or /dev/urandom on demand), source code, also GitHub - vab/passgen: password candidate generator
  871. Secure Windows & Linux Password Generator - Defuse Security - uses /dev/(u)random on Linux and CryptGenRandom() on Windows, with source code on GitHub for Linux and Windows
  872. YubiKey: TOTP-Schlüssel für 2FA sicher speichern - coding.blatt
  873. Diceware Passphrase Home (or diceware.com)
  874. RANDOM.ORG - Password Generator - true random passwords generated on each page view and transfered using SSL; but still.. it's someone else's site ;-)
  875. GRC | Ultra High Security Password Generator - generated on each page view and transfered using SSL, strong "Rijndael (AES) block encryption of never-repeating counter values in CBC mode"; but still.. it's someone else's site ;-)
  876. XKCD password - generator (xkcdpassword.com) - like most other online generators uses only JavaScript Math.random()
  877. Strong Password Generator (strongpasswordgenerator.com) - like most other online generators uses only JavaScript Math.random()
  878. Strong Random Password Generator (passwordsgenerator.net) - like most other online generators uses only JavaScript Math.random()
  879. Master Password (masterpassword.app) - JavaScript and App for different devices, name/masterpassword derived site passwords
  880. Random Key Generator (randomkeygen.com) - this one generates presets on each page view
  881. GRC's | Password Haystacks: How Well Hidden is Your Needle?
  882. How Secure Is My Password?
  883. How Long To Crack A Password Spreadsheet | SANS Institute - as of 2009
  884. Password Strength Meter
  885. The passphrase FAQ (in Security @ iusmentis.com)
  886. GRC | Flexible One-Time Password MetaSystem
  887. Lifetimes of cryptographic hash functions
  888. Aegis Authenticator - Secure 2FA app for Android
  889. World / Authenticator · GitLab (Gnome) - Backup/Restore from/into known applications like FreeOTP+, Aegis (encrypted / plain-text), andOTP, Google Authenticator
  890. QR-Codes für TOTP-Secrets erstellen - credativ®
  891. 2FA QR Code Generator - (for those who can't run qrencode from command line..) with source code and offline installable service worker
  892. Why you shouldn’t scan two-factor authentication QR codes! | by Sam Aiken | Crypto Punks | Medium
  893. GitHub - 2factorauth/twofactorauth: List of sites with two factor auth support which includes SMS, email, phone calls, hardware, and software.
  894. Key Uri Format · google/google-authenticator Wiki · GitHub
  895. Authentication Test - This site contains some examples of the ways web applications accept authentication. You can use these to test your scripts ability to authentication to them.
  896. ZITADEL • The best of Auth0 and Keycloak combined. Built for the serverless era
  897. endoflife.date - know your software's end-of-life date

    898. Shell End

  898. Bourne shell idioms
  899. BashFAQ - Greg's Wiki
  900. ZSH - THE Z SHELL
  901. start [ZshWiki]
  902. ZSH-LOVERS(1)
  903. [ Zsh ] (strcat.de)
  904. Zsh Tips, Tricks and Examples by zzapper
  905. robbyrussell/oh-my-zsh · GitHub