- Sigurnost -
Astaro Security Linux - http://www.astaro.com/products
Cloak and Dagger Messenger System - http://cloakndagger.sourceforge.net/ - http://sourceforge.net/projects/cloakndagger/
EnGarde Secure Linux - http://www.engardelinux.org/
e-smith - http://www.e-smith.com/
FileSystemSaint - http://www.insecure.dk/GnuPG - http://www.gnupg.org/
Green Light Advantage (AdminUX) - http://www.gladvantage.com
Honeynet Project - http://project.honeynet.org/
Lance’s Security Papers - http://www.enteract.com/~lspitz/
LIDS - http://www.lids.org/
Mailfw - http://mailfw.sourceforge.net/
Nessus - http://www.nessus.org
OpenPGP Alliance - http://www.openpgp.org/
OpenSSH - http://www.openssh.org
OpenSSL - http://www.openssl.org
Openwall - http://www.openwall.com
Prelude - http://prelude.sourceforge.net/
SmoothWall - http://www.smoothwall.org/
Security-Enhanced Linux - http://www.nsa.gov/selinux/
sOftprOject 2000 - http://www.s0ftpj.org/
Vacina - http://vacina.sourceforge.net/ - http://sourceforge.net/projects/vacina/