- Perform system upgrades and patch management.
- Built servers and performed OS installations in Red Hat Enterprise Linux (RHEL).
- Monitored system performance using tools like Nagios or Zabbix, and optimized resource usage for improved efficiency.
- Configuration of LVM (Logical Volume Manager) to manage volume groups, logical and physical partitions, and importing new physical volumes.
- Remotely managed and decommissioned servers via SSH, ensuring streamlined operations.
- Scaling CPU and memory resources in Red Hat Linux, Ubuntu Linux, and Oracle Linux.
- Worked with the DBA team on database performance issues and network-related issues on Linux/Unix servers.
- Configure and manage firewalls using iptables and firewalls, defining strict rulesets to control inbound and outbound network traffic.
- Managed user accounts, permissions, and access control in compliance with company policies.
- Ensured timely closure of tickets, maintaining a high level of user satisfaction.
- Worked extensively with Red Hat, Ubuntu, and CentOS operating systems.
Environment - RHEL, Ubuntu, CentOS, Oracle Linux.