Unix/Linux/BSD Security

It is very important to keep your Unix systems up-to-date with vendor supplied patches and to properly configure them for security.

OpenBSD - a free, proactively secure BSD Unix OS
OpenBSD  www.openbsd.org

FreeBSD - a free BSD compliant Unix OS
FreeBSD www.freebsd.org

National Security Agency Operating System Hardening guides
(includes Microsoft, Macintosh, Solaris)
http://www.nsa.gov/snac/downloads_os.cfm?MenuID=scg10.3.1.1

Center for Internet Security
(OSX, FreeBSD, Solaris, Linux, HP-UX, AIX)
http://www.cisecurity.org/

Bastille Linux - host based unix hardening scripts - Red Hat, SUSE,
Debian, Gentoo, and Mandrake distributions, along with HP-UX and Mac OS X.
http://bastille-linux.org/

Security Administration
http://www.networkworld.com/

Linux hardening guide
http://www.linux-sec.net/Harden/howto.gwif.html

Solaris 8 and 9 Operating System Hardening Guide
http://www.nortel.com/solutions/securenet/collateral/solaris_hardening_guide_v1.pdf

Hardening Solaris
http://online.securityfocus.com/infocus/1365

General information about securing Solaris, patches
http://dmoz.org/Computers/Software/Operating_Systems/Unix/Solaris/Administration/

Strengthening AIX Security
http://www-03.ibm.com/servers/aix/whitepapers/aix_security.html

Strengthening AIX Security: A System-Hardening Approach
http://www-03.ibm.com/servers/aix/whitepapers/aix_security.pdf

AIX Operating System Hardening Procedures & Security Guide
http://aplawrence.com/MDesrosiers/aixhardening.html