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IPCop Linux is a complete Linux distribution whose sole purpose is to protect the networks on which it is installed.
PLD is a free, RPM-based Linux distribution, aimed at the more advanced users and administrators, who accept the tradeoffs of using a system, that might require manual tweaking in exchange for much flexibility. Simultaneous support for a wide variety
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of architectures and non-conservative approach to RPM usage provides our users with a consistent environment on almost all available architectures. [Less]
Annvix is a free secure Linux-based operating system. The Annvix project aims to provide a secure, stable, and fast Linux distribution specifically tailored to servers that provide reliable services such as Email, Web, DNS, FTP, File sharing, and more.
Openwall GNU/*/Linux (or Owl for short) is a security-enhanced server platform. The primary approaches to security are proactive source code review, privilege reduction, privilege separation, careful selection of third-party software, safe defaults
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, "hardening" to reduce the likelihood of successful exploitation of security flaws, and the uses of "strong" cryptography. Also available are policy enforcement and integrity checking capabilities.
Besides the security enhancements, other key properties of Owl include the ability to rebuild the entire system from source with one simple command ("make buildworld"), support for software packages found in or developed for Red Hat's and compatible Linux distributions, and support for multiple architectures (currently x86, x86-64, SPARC, and Alpha). [Less]
Hardened Linux is a secured and minimalized operating system designed to run as a firewall, IDS host, authentication system and VPN gateway.
openMosix is a a set of extensions to the standard Linux kernel allowing you to build a cluster of out of off-the-shelf PC hardware. openMosix scales perfectly up to thousands of nodes. You do not need to modify your applications to benefit from your
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cluster (unlike PVM, MPI, Linda, etc.). Processes in openMosix migrate transparently between nodes and the cluster will always auto-balance. [Less]