Profile

User Profile

Technical Skills

Operation System : Debian, Ubuntu, Redhat, ManDriva, Suse, Windows 98/XP
Virtualization Platform : XEN, VMWARE, VIRTUALBOX, QEMU, WINE, OpenVZ
Programming Languages : C, Python, BASH Shell Scripting, PHP, Java Script
Network Application : FTP, TFTP, SAMBA, NFS, NTP, NNTP, SMTP, POP3, IMAP,
DNS, DHCP, APACHE, TELNET, SSH
VPN : OpenVPN
Authenticate Services : LDAP(Single Sign On) , SAMBA, NIS, Kerberos
Mail Server : SENDMAIL, POSTFIX, Zimbra, OXchange
DataBase Server : MySQL, Oracle
Software Packages : MS Office/OpenOffice, Photoshop/GIMP
Security : IPTABLES Firewall, SELINUX, Application Hardening
Backup : Hardware/ Software RAID 0/1/5
Admin Tools Used : Webmin, Firestarter, Watchdog, Snort,
Shorewall,smcroute
Monitoring Tools : NAGIOS, ZENOSS, Zabbix, MRTG
High-Availability Cluster : DRBD, Heart Beat
Security Tools : Nessus, Nmap, Ethercap, Metasploit,
N-Stealth, WebInspect, SQLping2, Backtrack OS
Network Tools : Nmap. Tcpdump, ettercap, Wireshark
Network Proxy : Squid, Webmarshal
Storage Management : Hardware/Software RAID 0,1,5, LVM , LVM + RAID
Servers Handled : Dell PE1950, Dell PE2950, SUN Fire x4150,
SUN Fire x4500, Supermicro ASA/MBX


Professional Experience
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System Administrator Verismo Networks Pvt. Ltd., BTM Layout, Bangalore
[Jan 2008 – Present]

~ Development of VSOS/VDOS (Verismo Server Operating System/Verismo Disk Operation System)
~ Securing the Linux Servers ( RedHat EL4 & EL5 Servers, SLES 10(SP1 & SP2,)
~ Webserver Security Auditing & Applying Patches
~ MySQL Performance Tuning
~ MySQL DRBD High Availability
~ Apache DRBD High Availability
~ Development of Intranet Site & Implementation
~ Network Monitoring using Nagios, MRTG.
~ Monitoring All Server CPU, Memory, HardDisk Health, Services
~ Monitoring Switches using MRTG & SNMP
~ Sending SMS & Mail alerts
~ Webmail Implementation using Horde Group Webmail
~ Application Hardening of APACHE, MySQL
~ Single Sign On using LDAP
~ SAMBA Share, CUPS Printer Share
~ Symantec EndPoint Server Management & Deployments
~ Linux Router/Firewall Configuration using Shorewall
~ Multicast Linux Router Configuration using smcroute
~ Various Virtualization Technologies such as XEN, Vmware, VirtualBox, Virtual PC, OpenVZ
~ IPTABLES Firewall Configuration using Shorewall
~ Writing Shell Scripts for automated Implementation of IPTABLE Chain, Backuping

Also working as part of the Organizations Technical R&D in application hardening and Virtualization Technologies.



System Administrator Winways System Pvt. Ltd., 80 Feet Road, MADURAI
[Jan 2006 – Jan 2008]

~ Securing the Linux Servers ( RedHat EL4 & EL5 Servers, Debain 4.0 servers, Ubuntu 6.01 Servers)
~ Application Hardening of APACHE, DNS, SENDMAIL, NFS, XINETD based Services, VSFTPD
~ Single Sign On using LDAP
~ Various Virtualization Technologies such as XEN, Vmware, VirtualBox, Virtual PC, OpenVZ
~ IPTABLES Firewall Configuration
~ SELinux Implementation of Type Enforcement
~ Writing Shell Scripts for automated Implementation of IPTABLE Chain, Backuping

Also working as part of the Organizations Technical R&D in application hardening and Virtualization Technologies.


Implementation Engineer/Juniour System Administrator Winways System Pvt. Ltd.,
[Jul 2005 – Dec 2005] 80 Feet Road, MADURAI

~ Implementation of Linux based Solutions for our Client.
~ Operating System Level Virtualization using VMWARE.
~ Cross platform Application Integration using Wine.
~ Installing , Configuring, Managing and Monitoring DNS, DHCP, APACHE, NFS, SAMBA Servers.
~ Backup Data using Tar, dump tools
~ Bash Shell Scripting for Automation of Backups, Deployments and Monitoring Report


Technical Support Specialist Winways System Pvt. Ltd., 80 Feet Road, MADURAI
[Jan 2005 – Jun 2005]

~ Installing and Configuring Linux Server/Desktop( RedHat, Fedora, Ubuntu, Debian, Suse, Mandrake ).
~ Installing software in Linux using RPM and DEB package manager.
~ Writing Shell Scripts for Automation
~ Trouble shooting Hardware/Software/Network Problems
Linux , Windows Desktop Support
~ User Management( Creating users, Managing Users, Monitoring User Activity, ACL, Disk Quota )

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