Design & Implementation of LAN/WAN Networks
Routing and Switching
Computer Hardware/Network Troubleshooting
Linux Server Administration (Redhat, CentOS, Ubuntu)
DNS, DHCP, FTP, SSH
Apache
Samba
Sendmail, Postfix, Dovecot
SVN
Squid Proxy
AMANDA Backup
MailArchiva
Shell Scripting
Windows Server Administration (2003/2008)
Active Directory
Internet Information Sever SVN
Firewalls (Filtering, NAT, Port Forwarding, SNAT)VPN (OpenVPN, IPSEC)
Network Management Systems 