Specialties :
Linux : ( Debian , RedHat / CentOS / Fedora , Ubuntu , Slackware )
Programming : ( Shell and Perl )
e-mail : ( Sendmail , Postfix , qmail , anti spam , content filtering )
Firewall : ( iptables , ipfw , pf)
Web ( Apache , JBOSS , Tomcat , nginx, jetty, varnish, node.js )
Files / Domain : ( Samba , CUPS , DNS , DHCP )
Fax : ( HylaFax )
Proxy : ( SQUID )
FTP : ( vsftpd , Proftpd )
Backup : ( AMANDA , rsync , Bacula )
Monitoring / Performance ( Zabbix , Nagios , Cacti )
Firewalls / VPN ( SonicWall , PIX , CheckPoint )