Sumathi Kothapalli

I am a Linux System Administrator with 7 years of professional experience, including 5.3 years focused on Linux environments and production support. I specialize in installation, configuration, user management, and cluster-level operations across RedHat, CentOS, Ubuntu, and Windows servers.

I have strong hands-on skills in monitoring and incident response using Nagios, Icinga, Splunk, and PagerDuty, and follow ITIL practices including Incident, Problem, and Change Management. I routinely manage patching, package installation and upgrades using RPM, YUM, and apt.

My operational experience includes disk and filesystem management (fdisk, parted, LVM, ext3/4, XFS), boot troubleshooting (kernel panic, initramfs recovery), performance diagnostics, and network services configuration (DNS, DHCP, NFS, FTP, SSH). I support 24x7 on-call rotations for critical production environments and participate in bridge calls and RCA for high-severity incidents.

I collaborate with teams and vendors for hardware issues, perform scheduled maintenance, and maintain backups and automation where possible. I communicate effectively during standups, shift handovers, and user interactions to ensure reliable service delivery.