Showing 103 open source projects for "security"

View related business solutions
  • $300 Free Credits for Your Google Cloud Projects Icon
    $300 Free Credits for Your Google Cloud Projects

    Start building on Google Cloud with $300 in free credits. No commitment, no credit card required until you're ready to scale.

    Launch your next project with $300 in free Google Cloud credits—no strings attached. Test, build, and deploy without risk. Use your credits across the entire Google Cloud platform to find what works best for your needs. After your credits are used, continue with always-free tier services. Only pay when you're ready to scale. Sign up in minutes and start exploring.
    Start Free Trial
  • Fully Managed MySQL, PostgreSQL, and SQL Server Icon
    Fully Managed MySQL, PostgreSQL, and SQL Server

    Automatic backups, patching, replication, and failover. Focus on your app, not your database.

    Cloud SQL handles your database ops end to end, so you can focus on your app.
    Try Free
  • 1
    SSHGuard

    SSHGuard

    Intelligently block brute-force attacks by aggregating system logs

    SSHGuard protects hosts from brute-force attacks against SSH and other services. It aggregates system logs and blocks repeat offenders using several firewall backends, including iptables, ipfw, and pf.
    Leader badge
    Downloads: 67 This Week
    Last Update:
    See Project
  • 2
    Netdeep Secure Firewall

    Netdeep Secure Firewall

    Next Generation Open Source Firewall

    Netdeep Secure is a Linux distribution with focus on network security. Is a Next Generation Open Source Firewall, which provides virtually all perimeter security features that your company may need. It offers Web content filters, ensuring better performance of the network, allowing users to use the service efficiently and securely, providing a deep control of the use of the Web access service, blocking access to unwanted websites, Virus, Spam, Applications and intrusion attempts. ...
    Leader badge
    Downloads: 26 This Week
    Last Update:
    See Project
  • 3
    CacheGuard Gateway

    CacheGuard Gateway

    Free UTM appliance: firewall, VPN, WAF and antivirus in one ISO.

    Securing your network should not require an enterprise budget. CacheGuard is a free open-source network security appliance for startups and growing businesses that need serious protection without the complexity. Install CacheGuard-OS on any x86 machine or VM and get a complete security gateway in under an hour. No plug-ins, no compatibility issues. Everything works out of the box. CacheGuard-OS is not an app, it IS the OS. A fully custom network appliance operating system built from scratch over 20 years, now fully open source. ...
    Leader badge
    Downloads: 4 This Week
    Last Update:
    See Project
  • 4
    OpenVPN

    OpenVPN

    Robust and flexible VPN network tunnelling

    OpenVPN is a robust and highly flexible tunneling application that uses all of the encryption, authentication, and certification features of the OpenSSL library to securely tunnel IP networks over a single TCP/UDP port. Discussion forums and project wiki can be found here: https://forums.openvpn.net/ http://community.openvpn.net/openvpn
    Downloads: 0 This Week
    Last Update:
    See Project
  • Stop vibe-debugging. Icon
    Stop vibe-debugging.

    Plug Claude into your app's actual errors.

    AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
    Free 30 days.
  • 5
    MailCleaner

    MailCleaner

    Anti Spam SMTP Gateway

    MailCleaner Open Source Edition is now discontinued but will continue under the spamtagger project https://github.com/SpamTagger [antispam] MailCleaner is an anti-spam / anti-virus filter SMTP gateway with user and admin web interfaces, quarantine, multi-domains, multi-templates, multi-languages. Using Bayes, RBLs, Spamassassin, MailScanner, ClamAV. Based on Debian. Enterprise ready. MailCleaner is an anti spam gateway installed between your mail infrastructure and the Internet. It...
    Downloads: 4 This Week
    Last Update:
    See Project
  • 6

    Web-based Firewall Log Analyzer

    Firewall log analyzer

    Flexible web-based firewall log analyzer, supporting netfilter and ipfilter, ipfw, ipchains, cisco routers and Windows XP system logs, and mysql or postgresql database logs using the iptables ULOG or NFLOG target of netfilter others mapped to the ulogd format with a view. Fully supports IPv6 for database logs, and netfilter and ipfilter system file logs. Also supports Maxmind's GeoIP version 2 location databases. For Linux, FreeBSD, OpenBSD, Solaris, OSX,etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    Endian Firewall Community
    Endian Firewall Community (EFW) is a "turn-key" linux security distribution that makes your system a full featured security appliance with Unified Threat Management (UTM) functionalities. The software has been designed for the best usability: very easy to install, use and manage and still greatly flexible. The feature suite includes stateful packet inspection firewall, application-level proxies for various protocols (HTTP, FTP, POP3, SMTP) with antivirus support, virus and spam-filtering for email traffic (POP and SMTP), content filtering of Web traffic and a "hassle free" VPN solution (based on both OpenVPN and IPsec).
    Leader badge
    Downloads: 239 This Week
    Last Update:
    See Project
  • 8
    OctopusWAF

    OctopusWAF

    Web application firewall in C language uses libevent

    OctopusWAF is a open source Web application firewall, is made in C language uses libevent to make multiple connections. Event-driven architecture is optimized for a large number of parallel connections (keep-alive) which is important for high performance AJAX applications. This tool is very light, you can deploy in any please, this resource turn perfect to protect specific endpoint that need a custom protection.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Xtables-addons
    Xtables-addons is a package that obsoletes the old patch-o-matic repository for the Linux kernel and iptables. Instead of patching the kernel source, extensions are built as modules and thus allow extending kernels without recompilation.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
    Try Free
  • 10

    knocker

    A simple, portable port scanner

    Knocker is a simple, versatile, and easy-to-use TCP security port scanner written in C, using threads. It is able to analyze hosts and the network services which are running on them. It is available for Linux, FreeBSD, Unix, and Windows95/98/2000.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 11
    Verigio - Geo Firewall

    Verigio - Geo Firewall

    Blocking and monitoring of network traffic based on geography.

    Geo Firewall performs blocking of network traffic based on geography (geo IP), allows to add custom subnets, allows exceptions on ports for incoming traffic for specific geography, keeps visual and persistent logs, shows statistics, automatically updates geographical database.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 12
    Verigio - DNS Proxywall / DNS Firewall

    Verigio - DNS Proxywall / DNS Firewall

    One of the most advanced DNS Proxy and DNS Firewall in one product.

    It is a versatile DNS Proxy server with DNS firewall which filters DNS traffic between local computer and DNS servers with flexible rules, supports blocking by IP geography, caching, import/export rules into XML. With a click of a button acts as a DNS proxy (or DNS server), supports multiple client authentication methods, calculates statistics for DNS servers and proxy clients, supports load balancing between multiple upstream DNS servers.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 13
    Vuurmuur
    Vuurmuur is a powerful firewall manager for Linux/iptables. Vuurmuur supports traffic shaping and live monitoring. It has an easy to learn configuration that allows both simple and complex configurations, and can be fully configured through the Ncurses GUI. Vuurmuur supports NAT, Port Forwarding and has IPv6 support.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    BrazilFW Firewall and Router

    BrazilFW Firewall and Router

    A powerful network security tool, easy, safe and totally free.

    BrazilFW is a mini Linux distribution designed to be used as a Firewall and Router that runs easily on older computers. An old PC running BrazilFW is much more powerful and efficient than commercial software for routing in offices and residences running on a "powerful" computer. BrazilFW is based on Coyote Linux, which was designed by Joshua Jackson who discontinued Coyote Linux in version 2.24 in August 2005. In that same month comes on the scene BrazilFW Firewall and Router (BFW) with...
    Downloads: 17 This Week
    Last Update:
    See Project
  • 15
    A Linux port of the OpenBSD/FreeBSD Cryptographic Framework (OCF). This port aims to bring full asynchronous HW/SW crypto acceleration to the Linux kernel, OpenSwan, OpenSSL and applications using DES, 3DES, AES, MD5, SHA, PublicKey, RNGs and more.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 16

    Linux Packet Tracer

    Simulating an IP packet traversing the Linux kernel.

    lpt simulates an IP packet traversing the Linux kernel and prints out what happens as it progresses through the security features of the kernel and quickly determine wether or not the packet will pass.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 17
    Advanced Onion Router
    Advanced Onion Router is a portable client for the OR network and is intended to be an improved alternative for Tor+Vidalia+Privoxy bundle for Windows users. Some of the improvements include UNICODE paths, support for HTTP and HTTPS proxy protocols on the same Socks4/Socks5 port with HTTP header filtering that generates fake identity-dependent headers every time the identity is changed (proxy chains are also supported), support for NTLM proxies, a User Interface that makes Tor's options and...
    Downloads: 110 This Week
    Last Update:
    See Project
  • 18
    NetFireCoRE

    NetFireCoRE

    Network Firewall Linux Kernel Module with Conflict Resolution Engine

    We implement an open source conflict resolution framework that consists of a user-space C application that automatically resolves firewall rules anomalies, and b) a generic tree (called policy tree), implemented as a Linux kernel module which maintains the resolved firewall rules and enables the necessary hooks to netfilter for matching incoming (or outgoing) network packets. Tree-based data structures offer improved efficiency compared to traditional access control lists (e.g. iptables or...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 19
    IPCop Firewall

    IPCop Firewall

    Linux firewall distribution geared towards home and SOHO users.

    The IPCop Firewall is a Linux firewall distribution. It is geared towards home and SOHO users. The IPCop web-interface is very user-friendly and makes usage easy.
    Downloads: 54 This Week
    Last Update:
    See Project
  • 20
    tgcd is a simple Unix network utility to extend the accessibility of TCP/IP based network services beyond firewalls. This can also be used by network analysts and security experts for penetration testing and analyze the security of their network. It's written in C Language.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21

    OpengateM

    A MAC address based user authentication system for campus-wide network

    This system restricts the network users and records usage log of the users. It is applicable to the campus wide network and is compatible to almost all network terminals. MAIN DEVELOPMENT SITE IS MOVED FROM here TO "https://osdn.jp/projects/opengatem/"
    Downloads: 0 This Week
    Last Update:
    See Project
  • 22
    USE secure operating system

    USE secure operating system

    a secure, open source OS for use inside USEagency facilities

    ...Downloaded files (and any other files entering the system) will be subjected to both an exception-based and signature-based virus scan. After that, they will be placed in a leveled security storage space, each more secure--with the most secure being 50. Under 50 will be 46-49; under that is 36-45; under that is 27-25; under that is 26; under that is 14-25; under that is 6-13; under that is 5-3; lastly there is level 2 the most insecure. The operating system itself will require many passwords: boot up, access logon screen, login, admin, and more/ Mainly, it will be built with strong security as its base
    Downloads: 0 This Week
    Last Update:
    See Project
  • 23
    Campagnol is a decentralized VPN over UDP tunneling. It uses UDP hole punching to open connections through NAT/firewall and OpenSSL's DTLSv1 implementation for mutual authentication and encryption.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 24
    lavender-firewall

    lavender-firewall

    Personal firewall for linux desktop and android phone

    This is extremely handy for Android Phones, as now most third-party Apps from mobile market is now close-sourced and it's hard to promise its security, but some of this functions may be tempting, so we have to install it and give it permissions what it want at installation stage, and then it may do something we don't like in the background, now with Lavender we can at least prevent from accessing network if we don't trust it. Both linux desktop and Android Phones are now supported(Front-end library and UI support) LIMITATIONS: Check README for details. ...
    Downloads: 0 This Week
    Last Update:
    See Project
  • 25
    Honeybrid is a network application built to 1) administrate network of honeypots, and 2) transparently redirect live network sessions (TCP or UDP) from one primary destination host to a secondary destination host.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next
Auth0 Logo