Linux/BSD/UNIX

[kafka]

ftp://ibiblio.org/pub/linux/

http://www.linux.org.

http://www.redhat.com .

http://www.debian.org.

http://linux.pagina.nl.

http://www.linux.com.

http://www.linux-mandrake.com/.

http://www.slackware.com.

http://www.linux-firewall-tools.com/linux/.

http://www.suse.com/.

http://linux.box.sk.

http://www.linuxiso.org/.

http://www.distrowatch.com/.

http://www.freebsd.org.

http://www.openbsd.org.

http://www.netbsd.org.