Remote installation ,Configuration and maintenance of Mailservers like sendmail, Qmail, SquirrelMail
Remote installation ,Configuration and maintenance of Webservers like Apache with/without SSL with DSO or static Modules, Samba , Tomcat, JWS for Servlets and JSP with its integration with Apache.
Remote installation ,Configuration and maintenance of Fileservers like Samba, NFS, FTP LDAP: OpenLDAP
Remote installation ,Configuration and maintenance of Proxy Servers like Squid
Radius
DNS
DHCP Server and Client
File Transfer Protocol (FTP) Server
Network File System (NFS) Server
PPP Configuration
RAID Configuration
Network Interface Card (NIC) Configuration
Lightweight Directory Access Protocol (LDAP) Server
Remote installation ,Configuration and maintenance of Firewall solutions on top of OpenSource Operating Systems (as proxyserver for http, mail, ftp,...) , Firewall-ip chains