Support linux servers (Slackware, Mandriva, Redhat, CentOS, AspLinux, Debian, Ubuntu, etc), too services which can be configured on it (winbind, sysctl, unhide, logwatch, busybox, rkhunter, chkrootkit, audit, squid+sarg+havp, vsftp, proftp, aide, apache+php+mod_ssl, virtualmin (webmin), zpanel, cpanel, parallels plesk, kloxo, ISPconfig, iptables (shorewall), fail2ban, mysql, postgresql, ldap, exim+qpoper, postfix+cirus+Mysql+MailScanner+MailWatch+ClamAV+postgrey, samba (recycle, audit modules), acl (setfacl, gefacl), postgrey, dovecot, postfixadmin, dkim-milter, webalizer, zend optimizer, bind, mailwatcher, clamav, squirrelmail, roundcube, nfs, arpwatch, denyhosts, openfire, phplist, mailman, xen, openvpn), more details about my experiences you can see on my profile page from another freelancer site http://www.freelancer.com/u/vova33.html