Professional Objective:

A position as a Linux System administrator that lets me utilize my superior Enterprise Linux knowledge. Interested to work in a heterogeneous Unix/Linux Network Environment and to prove myself to be an asset to the organization where my services can be utilized.

Technical Summary:

Operating Systems: 
Unix / Linux, Red Hat Enterprise Server 4,5, Fedora Core 6 +, Centos, Windows 2003 Servers Windows 2000 Advance Servers ,Microsoft small Business Server, Windows XP Pro , Windows Vista ,Cisco IOS.

Applications Utilities & tools:

Apache , NFS , SAMBA ,NIS, SWAT , Kickstart , RPM, YUM, BIND, PINE, SQUID,  SendMail /POSTFIX, Iptables / Netfilter , IIS, Qmail, Sendmail, SUDO, DNS, DHCP, remote desktop, RIS, Active directory, MySQL, Shell Scripting ,

Networking & Internet protocols:

Tcp / IP , udp, ppp, ftp, http, smtp, snmp, ip, icmp, nfs, rpc, arp, rarp,. imap, pop3, rip, igrp, eigrp, ospf, Frame Relay

Hardware:
Cisco routers, Cisco switches, Dell, HP, IBM Servers

Professional Experience:

Linux System Administrator
Confidential; Cedar Knolls, NJ 
Feb 2008 – Aug 2009

• Worked in a mix environment of Red Hat Enterprise Servers ,Centos and Fedora Core
• Deployed Red Hat Enterprise Servers through Kick Start and network install (http, ftp, nfs)
• Administered, installed, and supported Red Hat Enterprise 5 systems providing IS infrastructure including QMAIL, BIND, Apache, DHCP , FTP , Squid , Sendmail, mysql
• Perform software installation, upgrades/patches, troubleshooting, and maintenance on Linux servers.
• TCP/IP troubleshooting on Unix/NT/Linux network.
• Supported Linux Servers in a hosting environment
• Oversaw tuning and performance monitoring for Linux workstations, servers, and peripherals.
• Making the Linux computer a part of a Microsoft based network with SAMBA, Configuring file and directory sharing, Printing to samba server and Managing samba users.
• Configured NFS shares and NFS Mounts
• Managing packages with RPM,YUM & Up2date, Installed and maintained open source software
• Administering users and groups, Implementing User quota.
• Administered and Installed Bind 9 for the Company Network
• Provided 24/7 Support on Linux Servers assuring High availability and service uptime, support Linux clusters.
• Monitored, troubleshot, and resolved issues involving operating systems
• Successfully Configured Raid Level 5.
• Responsible for the Company mail server using Sendmail.
• Installed LAMP applications.
• Deployed and managed Squid as a proxy and cache server.
• Responsible for the Configuration and management of logical volume manager (LVM).
• Troubleshoot Linux Servers with different rescue methods for password recovery, boot loader problems, missing boot files etc.
• Automate System tasks by using shell scripts
• Created Linux user and groups.
• Created Linux partitions and file systems
• Configured and managed Apache Web Server.
• Setup a DHCP server to lease IP addresses for more then 100 Clients
• Scheduled Linux jobs through Cron and at daemons.
• Provided remote access through SSH and Secure Linux Systems with iptable firewalls including Hand written iptable rules.

System Administrator 
Confidential; Montvale NJ 
Mar 2006 -Dec 2007

• Performed Red Hat Linux OS installs and upgrades. Maintain system updates with RPM, YUM and up2date utilities.
• Troubleshot hardware/software issues and maintained system configuration.
• Enabled Linux/Microsoft file system mounts and sharing usingNFS, and Samba.
• Managed DNS zones using BIND.
• Installed, Configured and Managed a DHCP Server serving approximately 200
• IP addresses to attendees.
• Managed Linux Monitoring and system logs
• Configured and compiled 2.2- 2.4 Linux Kernel and Kernel modules
• Implemented Squid Web Cache on Red Hat Enterprise server there by saving about 65% of internet access bills.
• Configured and managed Raid Levels.
• Installed ,Configured and Managed Active Directory
• Configured and Managed FTP Server
• Worked as a team in deployment & management of Sendmail
• Configured Job scheduling through cron daemons
• Installed and Worked with mysql
• Monitored Linux System logs
• Secured Linux systems with IPTABLE base firewalls
• Created shell scripts for day to day system administration

Jr System admin 
Confidential; Matawan NJ 
Aug 2005-Feb 2006

• Installed, configured, and maintained PCs, operating systems, software, printers and other peripherals.
• Deployed , configured and managed Windows 2003 servers Configured Domain configuration (Windows Server 2003 ) with DHCP, DNS
• Responsible for Computer and Network Hardware, Memory, NIC , Rack and Stack Switches and Routers
• Worked on day-to-day IT operations for ISP company 2 locations, 30-55 employees, 15 servers, Responsible for development from scratch and maintenance local network (25 PC) with installation of networking equipment routers, switches, etc.
• Installed IIS server
• Configured and managed Active Directory 
  VPN server configuration and clients support
  Hardware and software troubleshooting/diagnostic, computer assembly.
• Troubleshooting system, network and user problems
• Provided Technical Support in a ISP and hosting environment
• Secure Linux systems against unauthorized users and malicious applications.
• Assist in the Configuration and Deployment of System Services , Apache, Bind, Samba,Send mail

Certifications 
MCSE 2003, MCSA 2003, MCP, CCNA, RHCE is in progress 
RHCE is in Progress

Education: Masters in Computer Science.