• Check processes that are consuming more resources than expected using (Tools:- top, sar, free -m).• Monitoring CPU utilization for a critical process like “JAVA”, “httpd”, “MySQL” using (Tools:- top, sar, free -m).• Taking system back up to the remote server using “rsync” tools compressing backup with tar (with gzip, bzip2).• Installing patch for the system using yum and periodically checking for updates.• Monitoring network traffic which is accessing the server using tools like tcpdump and Wireshark.• Configuring firewall/iptables adding rules for incoming traffic.• Writing shell script [bash] to automate tasks such as transfer logs, and taking backup.• Ensure network connectivity throughout the company’s LAN and also WAN using tools such as ping, traceroute, IP, netstat arp.• Changing rights and permissions to application folders as per requirement using chmod. • Configuring IP addresses to the interface using ifconfig and sometimes static IP by editing ifcfg-eth file.• Mounting and unmounting partition as per the requirement using mount and umount commands.• Clearing cache and buffer after approaching application team using echo 3 > /proc/sys/vm/drop_cache• Stop unwanted services on a server using the kill command [protecting server].• Creating a user/deleting/set permission using useradd, userdel, creating a group, and adding members using chgrp, us-ermod, groupdel etc.

1. Worked as Trainee System Administrator, responsible for Installation, Patching, and maintenance of the operating system. I have installed software and upgraded hardware components as per business requirements. 2. Maintenance and Troubleshooting of Servers and Network.3. Work as a junior member of the team, providing technical and administrative support to the Organization's IT systems and networks.4. We use to give rights and permissions to application folders as per requirement.5. We use LVM to extend or reduce the partition/disks. 6. Coordination with all team members for efficient & smooth functioning of IT Services.