System Admin, Linux, Windows, Fedora Core, FreeBSD, Redhat Enterprise Linux, Debian, CentOS, Apache, DNS, bind, samba, qmail, exim, postfix, smtp, pop3, imap4, pop3s, imaps, courier-imap, courier, dovecot, bash, csh, Windows Server 2003, IIS, Exchange Server, SQL Server Script Installation, php, mysql, mysql replication, website design, web development Perl/CGI, website tweak, fix, fix code errors, install/troubleshoot ssl certificates cisco, juniper, network issues, server issues ISA server 2004, ISA server 2006, Active Directory, Exchange Server, BizTalk server, Sharepoint portal server, IIS