Semantic search
- Broadband-usage
- This software meters the traffic on an SNMP-enabled broadband modem/router and then lets you find out your usage by calendar month. It's main purpose is to let you know what your usage is without having to resort to your ISP's website and without having to trust their accounting. If they get their accounting wrong (which can happen), this software gives you data that you might be able to use when contesting the invoice.
- CQuerl
- CrococryptQuerl (CQuerl) is a web-based open-source file encryption and file exchange tool. If you trust the application service provider which is running CrococryptQuerl, it can be seen as an "anonymous & encrypted safe deposit box for computer files". The user provides a file and password and receives an ID. No plaintext data is stored in CQuerl including filenames. If the user looses the ID or forgets the password, the encrypted file cannot be recovered - even by the service provider.
- Castopod
- Decentralized podcast hosting software to run on your own server.
- Certbot
- From README: Certbot is part of EFF’s effort to encrypt the entire Internet. Secure communication over the Web relies on HTTPS, which requires the use of a digital certificate that lets browsers verify the identity of web servers (e.g., is that really google.com?). Web servers obtain their certificates from trusted third parties called certificate authorities (CAs). Certbot is an easy-to-use client that fetches a certificate from Let’s Encrypt—an open certificate authority launched by the EFF, Mozilla, and others—and deploys it to a web server. Anyone who has gone through the trouble of setting up a secure website knows what a hassle getting and maintaining a certificate is. Certbot and Let’s Encrypt can automate away the pain and let you turn on and manage HTTPS with simple commands. Using Certbot and Let's Encrypt is free.
- Cjdns
- Cjdns implements an encrypted IPv6 network using public key cryptography for address allocation and a distributed hash table for routing. This provides near zero-configuration networking without many of the security and robustness issues that regular IPv4 and IPv6 networks have. Hyperboria is the largest cjdns network, with hundreds of active nodes around the world.
- Clipperz
- Clipperz is a web based password manager. Local encryption within the browser guarantees that no one except you can read your data. With Clipperz you can quickly login to websites, as well as organize and store logins and any confidential data.
- Cowrie
- Cowrie is a medium to high interaction SSH and Telnet honeypot designed to log brute force attacks and the shell interaction performed by the attacker. In medium interaction mode (shell) it emulates a UNIX system in Python, in high interaction mode (proxy) it functions as an SSH and telnet proxy to observe attacker behavior to another system.
- Crowdsec
- Crowdsec is a firewall and behaviour detection system that uses a shared IP address reputation database in order to identify potential threats. User can instruct Crowdsec to watch certain logs, including both operating system logs and logs for specific applications. These are analysed for potential security threats, and the source IP address of any suspicious activity may be uploaded to a shared reputation database. Likewise, the user can download this shared database to benefit from lists of known suspicious hosts. Crowdsec includes so-called 'bouncers' to block certain IP addresses from accessing services, thus forming a reputation-based firewall. As the bouncer and detection components are separate programs and can remotely communicate, Crowdsec may be appropriate for embedded applications where the host to be protected is not powerful enough to detect potential threats itself; the log analysis can be done on another, more powerful system.
- DNSleak
- DNSleak inspects DNS packets on the local network interface to detect leaks. Unlike web-based solutions, it works at the local computer level. No third party servers are used and DNS leak result is a true/false response.
- Feather
- Feather is a free Monero wallet for GNU/Linux, Tails, macOS and Windows. It has many useful features and it is focused on privacy and security, it works through Tor network and websocket connection
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