Kailash Kumawat

Experience

• 

  Jetking Infotrain Limited

  Jan 2005 - Jun 2010

  System Admin

  * Send Mail Transfer (SMTP) & Postfix* Internet Message Access Protocol (IMAP), Network Information Service (NIS), Proxy (Squid), File Transfer Protocol (FTP), Domain Name System (DNS), Dynamic Host Configuration Protocol (DHCP), Network File System (NFS)* Secure Shell (SSH), PXE Server ( TFTP )* Logical Volume (LVM), Samba, Telnet, Hardware & Software RAID, Crontab* User & Group Quotas, Root Login Problem, Troubleshooting with Linux

• 

  Rudra Infotainment Pvt. Ltd.

  Jun 2010 - Dec 2012

  Linux Administrator @ Rudra

  * Installed, Configured, Maintainance and monitoring of Linux Servers, * Configured and managed High-available Linux cluster server,* Hands on Experience on Virtualization with VMWARE Esxi 5.0 Server with Vsphere & VCenter Client,* Installed, configured and troubleshooting web servers Apache (http/https) And Proxy server (Squid).* Hands on Experience on Configuring and managing the DNS, DHCP servers and assigning IP address to client hosts* Effective use of Unix utility’s like grep,vi,find,kill,pill,ps,sed.* Configured and managed FTP server for shared folders in the organization,* Hands on Experience on Configuring and managing TFTP server, Kickstart Server* Configuring and implementing samba, NFS Configure data sharing over the network,* Implemented Firewall using IPtables* Managing Logical Volume Manager (LVM), RAID Concept* Effective use of iSCSI initiator and targets setups on Linux hosts, Show less

• 

  IBM

  Jan 2013 - Jul 2016

  Technical Service Team Leader

  * Managed the production hardware of IBM, Dell, HP, Compaq and Sun.* Configured the ILO's/Raids/BIOS settings for the HP Proliant and Dell Poweredge Servers on newly hardwares.* Installation/configuration of Redhat Enterprise Linux 4, 5 and 6, SuSe Linux 9 & 10,* Performed OS Upgrades on RHEL/CenOS/SUSE servers.* Performed OS Upgrades of SuSe 10.2 32bit version to 10.4 64bit version without any data loss.* Performed system backup using clonezilla.* Performed the RCA on every critical incidents or repeated issues.* Hands on experience in Server hardening and performance tuning as suggested by vendor.* Hands on experience in Configuring Bond on Red Hat Linux Servers for High Performance and Network redundancy.* Analyzing technical issues and formulated structural models to solve the problem* Vulnerabilities fix ( Shellshock, Heartbleed, Ghost & Leap second ) Show less

• 

  Wipro

  Aug 2016 - now

  Lead Linux Administrator

  * Installing Red hat Enterprise Linux 5.X,6.X,7.X and Cent OS 5.X,6.X,7.X on HP proliant and DELL Power Edge using Kick Start and PXE boot.* Performed patching of Red hat and Cent OS servers from 5.6 to 5.8,5.9,5.10,5.11 and From 6.2 to 6.4,6.5,6.6,6.7,6.8,6.9* Performed regular security vulenrabilities via Ansible automation tool.* Performed BIOS/ILO and RAID Firmware upgrade on All HP DL Proliant and Dell DRAC servers.* Configured system with multipath devices in Logical Volumes.* Performed OS related troubleshoot and recovery of corrupted OS.* Created New Users in ILO's, Resetting the ILO password at OS level.* Installed and configured Oracle RAC disks on both Red Hat 5.X and 6.X using ASM lib and Udev Adm rules.* Performed troubleshoot on CRS related issues.* Configured different levels of Bonding(Bond0,Bond1)* Migration of RAID 0 to RAID 1 at OS level.* Worked on security hardening on the Servers on basis of Security team guide line. Show less