Mithun Kumar is a Linux System Administrator with over 10 years of experience maintaining mission critical infrastructure. He has extensive skills in Linux, networking, security and automation tools like Puppet, Cobbler and Nagios. His objective is to use these skills for fault tolerant monitoring and maintenance. He has worked as a Cloud Operation Engineer and Senior Production Engineer managing servers, virtualization, backups and migrations.

1. RESUME
E-mail: - mithunkumr@gmail.com
MITHUN KUMAR
Mobile: 9611165795
OBJECTIVE
Use my skills and knowledge of fault tolerant solutions for daily monitoring and maintenance of mission
critical production infrastructure. Aspiring for a Bright and a challenging career in the field of IT
Technology, Which would enable me to upgrade myself with emerging trends and technologies.
SUMMARY
• Work well under pressure either with minimal supervision or in a team
• Fantastic ability to learn new material quickly
• Involved as an active team member
• Linux System Administration skills (RedHat, Cent-OS and Fedora)
• Hands on knowledge in Server performance tuning & hardening
• Key skills include Linux performance tuning
• Exposure on bug tracking tool like Bugzilla
• Designs and builds forward thinking solutions that are scalable, durable and easy to maintain. Designs
and builds forward thinking solutions that are scalable, durable and easy to maintain
• Recognized expert in configuration management and contribute to the open source
• Good knowledge on SVN
• Installation and support of Apache web servers, RAID, LVM, NFS, SMTP, NAGIOS, FTP, MYSQL
Server, DNS, DHCP, SAMBA, SendMail and Windows to Linux interoperability and migration.
WORK EXPERIENCE *
 Sun Technologies Pvt. Ltd.
Designation: - Cloud Operation Engineer (October ‘09/10/12 to
Present)
JOB RESPONSIBILITIES
• Coordinating with Offshore/Onshore people
• Working on VMware Virtualization ESX 4.1
• Handling JIRA and First Web ticket
• Installing, configuring and managing ESX Server
• Supporting for application Server HPOO, New Scale and confluence

2. • Monitored the Server’s resources by vFoglight
• Preparing (POA) plan of action’s for migration
• Maintaining of Linux VM Machines
• Configuring the FTP server to maintaining the shared folders in the Organization
• Creating users, group & assigning permission
• Creating ACL rule for users
• Managing and Recovering a Remote System through DRAC (Dell Remote Access Card)
• Troubleshooting & resolving issues through the VMware virtual center and Lab Manager
 AdiQuity Technologies Pvt Ltd. (March ‘08 – 08/10/2012)
Designation: - Sr. Production Engineer
JOB RESPONSIBILITIES
• Maintaining the whole IT infrastructure consisting of a farm of Linux servers
• Monitoring and troubleshooting production issues using tools like NAGIOS and proprietary guruji
software’s
• Configure SMS with NAGIOS by Net Setter
• Design and maintain the whole infrastructure required by the application
• As a key member of the production team, migrated the entire guruji data center to a geographically
different location. The work consisted of planning the migration without disturbing the live traffic and
seamless switchover to the new facility. The entire task was completed in a small time window of 2 days
• Installing and maintaining DNS for our organization
• Handling ec2 amazon cloud
• Installing and maintaining tools like SAMBA, DHCP, NFS, FTP, CVS, Bugzilla, MYSQL, Apache,
Shorewall, NTP, Cfdisk
• Maintained Send Mail and SMTP Server (with SPF record and Domain Keys)
• Configure SSL on Send Mail
• Configure milter-greylist on Send Mail for SPAM.
• Maintaining the cloud (ec2).
• Configure and VM.
• Configure Auto Reply and Footer with Send Mail
• Maintaining some administrative (automatic) task by SHELL Script.
• Configure Sudoers for Production Team
• Migrated the OS installation process from manual to automatic using Cobbler
• Configure RAID
• Automated the administrative tasks like password changing, post installation configurations, setting up a
free user login
• Upgraded the entire guruji office network to a better infrastructure
• Configured and maintained Master/Slave on MYSQL with mail and SMS
• Designed and implemented backup procedures
• Negotiated with vendors in cases of hardware failures or software issues
• Besides systems administration, is the point of technical contact for the developers and office PC support
technician

3. • Installing and configuring RUN LEVELS
• Provided 24/7 on call availability by means of cell phone, instant messaging and e-mail
• Fantastic ability to learn new material quickly
• Disk Management, portioning tools like fdisk, sfdisk and cfdisk. File system management ext3 file system
& utilities (mke2f, e2fsck,tune2fs) LVM physical volumes and logical volume & volume groups
extending file systems LVM mount, unmount of file systems- /etc/fstab mount options.
 V-Angelz Technology (June’07 – Feb ‘08)
Designation: - Linux Engineer
JOB RESPONSIBILITIES
• Installing and maintaining the Print Server, Samba, FTP, Dialer server, Chat Server, HTTP
• Installing and maintaining the Proxy with Shorewall and DansGuardian
• Installing and maintaining the Q-Mail and Send Mail
• Installing and maintaining the LDAP.
• Installing and maintaining the DNS
• Installing and maintaining the DHCP
• Monitoring the Remote Server by NAGIOS tool
• Responsible for maintain the IRON PORT
• End to end migration of the entire data centre
• Conducted research on proposed system upgrades and identified potential incompatibilities that led to
alternative system purchase
• Provided 24/7 on call availability by means of cell phone, instant messaging and e-mail
PROFESSIONAL QUALIFICATION
• REDHAT CERTIFIED ENGINEER training from NEW HORIZONS, Delhi
• RHCE, Certificate Number: 804006791022538
•
ACADEMIC QUALIFICATION
• Bachelor in Computer Application (BCA) from IGNOU
• Intermediate (10+2) in Science from Bihar Board.
• Matriculation from Bihar Board
TECHNICAL SKILL
Operating System : RHEL, Cent-OS, Fedora
Mail Server : Send Mail-Mail, Squirrel mail, Q-Mail

4. Other Linux Tool : NAGIOS, COBBLER, BACULA, WEBMIN, BUGZILLA
Sphinx, Puppet, SVN, FAI, DansGuardian, Sarg, Awstats,Splunk
Server : DNS, DHCP, FTP, IMAP, POP, NTP, NIS, NFS, SAMBA
Web Server- : Apache Web Server, NGINX
Language : Shell Script
Firewalls : TCP Wrapper, Internet blocking using Squid, Shorewall
Database : MYSQL
Hardware : IBM and Dell PowerEdge blades
Network Services : DNS/Bind, Samba, CIFS, NFS, TSM, LDAP, FTP, SSH, multipathd,
DHCP, TFTP, iSCSI.
Security Products : SELinux, Iptables, Tcpdump, Snort, IPtable, TCP Wrapper SSL
PERSONAL PROFILE
Name : Mithun Kumar
Date of Birth : 12/09/1981
Gender : Male
Nationality : Indian
Marital Status : Married

5. Other Linux Tool : NAGIOS, COBBLER, BACULA, WEBMIN, BUGZILLA
Sphinx, Puppet, SVN, FAI, DansGuardian, Sarg, Awstats,Splunk
Server : DNS, DHCP, FTP, IMAP, POP, NTP, NIS, NFS, SAMBA
Web Server- : Apache Web Server, NGINX
Language : Shell Script
Firewalls : TCP Wrapper, Internet blocking using Squid, Shorewall
Database : MYSQL
Hardware : IBM and Dell PowerEdge blades
Network Services : DNS/Bind, Samba, CIFS, NFS, TSM, LDAP, FTP, SSH, multipathd,
DHCP, TFTP, iSCSI.
Security Products : SELinux, Iptables, Tcpdump, Snort, IPtable, TCP Wrapper SSL
PERSONAL PROFILE
Name : Mithun Kumar
Date of Birth : 12/09/1981
Gender : Male
Nationality : Indian
Marital Status : Married

6. Other Linux Tool : NAGIOS, COBBLER, BACULA, WEBMIN, BUGZILLA
Sphinx, Puppet, SVN, FAI, DansGuardian, Sarg, Awstats,Splunk
Server : DNS, DHCP, FTP, IMAP, POP, NTP, NIS, NFS, SAMBA
Web Server- : Apache Web Server, NGINX
Language : Shell Script
Firewalls : TCP Wrapper, Internet blocking using Squid, Shorewall
Database : MYSQL
Hardware : IBM and Dell PowerEdge blades
Network Services : DNS/Bind, Samba, CIFS, NFS, TSM, LDAP, FTP, SSH, multipathd,
DHCP, TFTP, iSCSI.
Security Products : SELinux, Iptables, Tcpdump, Snort, IPtable, TCP Wrapper SSL
PERSONAL PROFILE
Name : Mithun Kumar
Date of Birth : 12/09/1981
Gender : Male
Nationality : Indian
Marital Status : Married