-  4 year 9 Month work Experience  as a Linux  System Administrator.        Summary:-   -  Experience in Red Hat Linux, Ubuntu & Cent OS . -  Experience in Latest Virtualization technology LXC, (Linux Container) & KVM , XEN -  Experience in Monitoring tool Nagios . - Experience  fail2ban computer servers from brute-force attacks (Python Programming )  -   Experience in gluster (network-attached storage file system). -  Good Experience in Mail Administration and configuration,Postfix, Qmail, Dovecot   -  Experience in  integration  DKIM , DMARC in Postfix Email server   -Active Directory user authentication in Postfix Email server.  -  Experience in Mass mailing,Spam filtering,bulk mailing monitoring mail server,     mail scanner, mail watch , clam av, mail aliases. Spamassassin -  Creating Managing,Configuring Open fire chat server with Active Directory, Lap User     authentication. -  Experience in Systems,Network,Windows, Linux administration. -  Experience in Managing Web servers (Apache), Application servers,      Dans FTP, Lap, NFS, Kerberos. -  Experience in lvm, raid.  - Experience in shell script  -  Experience in Brutalization Technologies,Stemware, Xen and KVM. -  Experience in Mysql database creating and customization,configuring. -  Experience in Squid(Proxy) server. -  Experience Linux Firewall ,Customize & Configuring Network,server security..