Linux Linux/Unix (Open Source) Install, Configure and Maintain Web Server ( Apache, Nginx) with mysql/oracle/postgresql backend. Install, Configure and Maintain Mail Server ( Qmail, Postfix, Exim, Sendmail) with smtp auth, Antivirus, Antispam, SPF etc. Install, Configure and Maintain Zimbra Collaboration Suite. Install, Configure and Maintain Basic/Intermediate/Advanced( L7 filters) Firewall Gateways using open source iptables. Install, Configure and Maintain Squid Proxy Server with https/ftp redirection, Web caching, URL Filtering. Install Confiugure and Maintain Bandwidth Shaping/Policing/limiting with combination of iptables and perl/bash scripting Install, Configure and Maintain Backup technologies using open source rsync, amanda, zamanda, Install, Configure and Maintain Cluster Environments using opensource proxmox, beowulf Install, Configure and Maintain Repository Server using Apache SVN. Install, Configure and Maintain Basic/Intermediate/Advanced (BGP – Single/Multihome) Routing using combination of quagga/vyatta. Install, Configure and Maintain DHCP/DNS (Private/Public) servers. Install, Configure and Maintain Server/Network Monitoring using MRTG, Cacti, Nagios, OpenNMS. Install, Configure and Maintain Virtual Private Network ( client/server, tunnel mode) using openvpn/openswan Install, Configure and Maintain IP Telephony Using Trixbox/Asterisk/FreePBX/Openswitch. Install, Configure and Maintain IDS/IPS using combination of psad and snort. Install, Configure and Maintain Port Vulnerability Checker in internal environment with nessus/Tripwire. Install, Configure and Maintain Protocol Analyzer Wireshark. Install, Configure and Maintain File Server with jail environment. Install, Configure and Maintain Domain Controller using combination of SAMBA/LDAP. Install, Configure and Maintain Sharing Server using SAMBA. Install, Configure and Maintain NTP Server. Install, Configure and Maintain Virtualization using virtualbox. Configure Antispoof, Anti DdoS attack scripts using perl/bash. Install Configure and Maintain Web Hosting Panels ( Cpanel, ISPConfig )
