• OS/Platforms : Linux (worked on Cent OS, Redhat 7.* - 9.*, Fedora, Debian), FreeBSD, Windows 2003 Server.
• Web Servers : Apache 2.x/1.3, Apache , Nginx
• Mail Servers : Exim, Qmail, SendMail , Postfix
• Control Panels : Plesk
• Server Audit/Security Tools : Chkrootkit, Logwatch, Nessus, Rkhunter, Nagios , ninja
Portsentry, Spamassassin
• Firewalls : CSF, APF, BFD, Iptables
• Programming Languages : Shell scripting, Python
• Databases Managed : MySql
• Storage technologies :- SNIA basics and Vertitas Netbackup , Veritas Volume manager , EMC Clarions basics . concept about FC protocols and various topologies in SAN, Amazon EC2 , AWS Console, Nagios , rsyslog , Ganglia , Puppet