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The Caos core operating system is meticulously managed to be fast, lightweight and as simple to manage as possible. The original target of Caos Linux is high performance computing, where even minute regressions in performance are amplified into major slowdowns when the system is taken to scale. Therefore, we have taken great care in the design and testing of Caos Linux to identify and resolve such performance regressions prior to release. Once this optimized core operating system was in place we and our users found that it is a perfect foundation for building any type of system, as the light and clean core effectively facilitates expansion into many different feature sets.
Our core operating system is always fully self hosting (which means it is a tightly coupled set of packages fully capable of rebuilding itself in its entirety). This is important as the build environment may be completely controlled and isoloated from any non-core artifacts.
Caos-NSA comes with complete HPC Clustering right out of the box with full versions of Perceus and Warewulf available in the default install. Pre-made VNFS images are also available from our mirror sites.
In more detail you will find the following features in Caos-NSA:
System
The Linux 2.6 kernel with GRSecurity and PAX (initial release with 2.6.28)
The Gnu Compilers (GCC) version 4.3.3
File systems (at installer): ext3, ext4, xfs, reiserfs, and jfs
The RPM package manager version 5.1
Scripting languages: Perl, Python, Ruby
Virtualization: KVM
Configuration: Sidekick system configuration toolkit
Architectures: ia32 (i386-athlon), x86_64 (AMD64 and EM64T)
Operating system is self hosting
Services
Web: Apache 2.2, NGINX, PHP (hardened)
Email: Postfix, Qmail, Dovecot (imap/pop), Spamassassin (spam filter), ClamAV (antivirus)
Windows services: Samba 3.2
Database: MySQL 5
Printing: CUPS
Clustering
Management: Perceus
Monitoring: Warewulf
Scheduling: Slurm, Torque
InfiniBand: OFED 1.4
Parallel file systems: Gluster2
Cloud virtualization: Abstractual
Message Passing: Open MPI
Graphical Environment
Base: X11R7 and XFCE
Web: Firefox
Email: Thunderbird
Messaging: Pidgin
Maintenance
3-5 year life cycle (from release)
Community and commercial support available
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