Open Source Server Operating Systems Security Software

Security Software for Server Operating Systems

Browse free open source Security software and projects for Server Operating Systems below. Use the toggles on the left to filter open source Security software by OS, license, language, programming language, and project status.

  • Enterprise-grade ITSM, for every business Icon
    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity.

    Freshservice is an intuitive, AI-powered platform that helps IT, operations, and business teams deliver exceptional service without the usual complexity. Automate repetitive tasks, resolve issues faster, and provide seamless support across the organization. From managing incidents and assets to driving smarter decisions, Freshservice makes it easy to stay efficient and scale with confidence.
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  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
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  • 1
    WinSCP

    WinSCP

    WinSCP is a free SFTP, SCP, S3, WebDAV, and FTP client for Windows.

    WinSCP is a popular free file manager for Windows supporting SFTP, FTP, FTPS, SCP, S3, WebDAV and local-to-local file transfers. A powerful tool to enhance your productivity with a user-friendly interface and automation options like .NET assembly or batch file scripting. Use WinSCP also for file editing, directory synchronization and site management. WinSCP is open-source and well documented. It is available in English and many other languages.
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    Downloads: 221,702 This Week
    Last Update:
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  • 2
    KeePass

    KeePass

    A lightweight and easy-to-use password manager

    KeePass Password Safe is a free, open source, lightweight, and easy-to-use password manager for Windows, Linux and Mac OS X, with ports for Android, iPhone/iPad and other mobile devices. With so many passwords to remember and the need to vary passwords to protect your valuable data, it’s nice to have KeePass to manage your passwords in a secure way. KeePass puts all your passwords in a highly encrypted database and locks them with one master key or a key file. As a result, you only have to remember one single master password or select the key file to unlock the whole database. And the databases are encrypted using the best and most secure encryption algorithms currently known, AES and Twofish. See our features page for details.
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    Downloads: 199,492 This Week
    Last Update:
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  • 3
    AWStats

    AWStats

    AWStats Log Analyzer

    AWStats is a free powerful and featureful server logfile analyzer that shows you all your Web/Mail/FTP statistics including visits, unique visitors, pages, hits, rush hours, os, browsers, search engines, keywords, robots visits, broken links and more
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    Downloads: 342 This Week
    Last Update:
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  • 4
    xpy
    xpy is a small software, securing your Windows 2000/XP/2003 installation and protecting your privacy. In addition to so-called Antispy features, it disables common security threats (RPC/DCOM, LMHash) and increases your Windows performance.
    Downloads: 26 This Week
    Last Update:
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  • Find Hidden Risks in Windows Task Scheduler Icon
    Find Hidden Risks in Windows Task Scheduler

    Free diagnostic script reveals configuration issues, error patterns, and security risks. Instant HTML report.

    Windows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
    Download Free Tool
  • 5
    THIS PROJECT HAS BEEN ABANDONED SINCE 2007, NO SUPPORT WILL BE PROVIDED. Winpooch is a watchdog for Windows (2000, XP, 2003, but only 32-bits). It detects modifications in your system, so as to detect a trojan or a spyware installation. It also includes a real-time anti-virus. Set your own security level for anti-spyware, ant
    Downloads: 7 This Week
    Last Update:
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  • 6
    Privacy and Anonymity in the Internet

    Privacy and Anonymity in the Internet

    System for anonymous Web browsing

    Our goal is to develop, implement, evaluate and provide a secure and scaleable technical infrastructure for anonymous communication. This project is supported by Deutsche Forschungsgemeinschaft (DFG).
    Downloads: 1 This Week
    Last Update:
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  • 7
    psyBNC is an easy-to-use, multi-user, permanent IRC-Bouncer with many features. Some of its features include symmetric ciphering of talk and connections (Blowfish and IDEA) It compiles on Linux, FreeBSD, SunOs and Solaris.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 8
    Cryptofon

    Cryptofon

    Cryptofon - a safe phone with integrated encryption.

    The Cryptofon is designed to enable safe and secure communication trough a regular PSTN line. It supports narrowband connections (~2400 bit/s and lower).
    Downloads: 0 This Week
    Last Update:
    See Project
  • 9
    Dir2Encrypt
    Dir2Encrypt encrypt a folder with privat files and subfolders into a single password protected archive file. The archive file can be a zip file or a self extracting exe file. Microsoft Net Framwork 2 has to be installed.
    Downloads: 0 This Week
    Last Update:
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  • AI-generated apps that pass security review Icon
    AI-generated apps that pass security review

    Stop waiting on engineering. Build production-ready internal tools with AI—on your company data, in your cloud.

    Retool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
    Try Retool free
  • 10
    Mica has been developed in the project SicAri (www.sicari.de), sponsored by the BMBF (www.bmbf.de), and allows for all kind of means authentication at windows systems. Mica is based on Kerberos and therefore supports single sign-on.
    Downloads: 0 This Week
    Last Update:
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  • 11
    This WebOS application generates RFC 2289 standard compliant one-time passwords. It supports the MD4 and MD5 message-digest algorithms as well as the SHA-1 hash algorithm and can be used with challenge-response OTP systems such as OPIE and S/KEY.
    Downloads: 0 This Week
    Last Update:
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  • 12
    PAM/NSS module to use OS/400 (AS/400|iSeries) userinformation und password.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 13
    Complete Privacy Suite. Deletes all Junks, Browser history, Manage passwords, Crypt Disk, Anonymous surfing, etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 14
    RunAsAdmin Explorer Shim is a tool that lets administrators to keep and easily use their administrative rights but still enjoy safety of using least privileged accounts.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 15
    Set of tools and libs for managing structured data in a very flexible way: Imp./Exp. ASCII, XML, SQL, PS, Tex/LaTex, RTF GUI: X-Windows, MS-Windows Interface to C++, DBs, Perl, PHP, Java, TCP/IP LISP-like interpreter written in C++ using C-LIB
    Downloads: 0 This Week
    Last Update:
    See Project
  • 16
    yagodu

    yagodu

    password safe / manager for linux and windows (and mac ?) via qt

    Password safe for Windows and Linux. If you want to manage your passwords (or other information) in one file and access that file with Windows and with Linux, this could be your choice. You create trees where each knot and leaf contains as many key/value pairs as you like. Then the whole thing is written encrypted to one file. Windows binaries and Debian32/64 binaries are downloadable. If you want to build it yourself - I suggest Linux users do that - get Qt4, call qmake and make in the directory where the .pro file is and you should be done. When building with Windows I suggest MinGw. The encryption is taken from a c-sample from Bruce Schneiers site. If someone could check it, that would be nice. OS/2: http://www.os2world.com/past-news/80-software/20576-yagodu-v2-3
    Downloads: 0 This Week
    Last Update:
    See Project
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