Oracle Linux Administration

Role & responsibilities

Roles & Responsibilities

• Install, configure, administer, and maintain Oracle Linux 7/8/9 servers.
• Perform OS patching, upgrades, security updates, and kernel updates.
• Manage packages using YUM/DNF/RPM.
• Perform user and group administration, password policies, and access management.
• Manage filesystems, partitions, LVM, mounts, and disk space.
• Configure and troubleshoot NFS, SSH, DNS, networking, and TCP/IP.
• Manage Linux services using systemd/systemctl.
• Monitor CPU, memory, disk, processes, and system performance.
• Troubleshoot OS, application, filesystem, network, and performance issues.
• Configure and maintain SELinux and firewalld.
• Analyze system logs using journalctl, /var/log, and other monitoring tools.
• Perform server hardening according to security standards.
• Automate routine administration tasks using Shell scripting.
• Manage cron jobs and scheduled tasks.
• Perform backup, recovery, and disaster-recovery activities.
• Troubleshoot boot issues, kernel problems, and system failures.
• Support Oracle Database and middleware environments running on Oracle Linux.
• Work with Oracle Linux Ksplice for kernel/live patching where applicable.
• Support high availability, clustering, and virtualization environments.
• Maintain server documentation, operational procedures, and change records.
• Participate in incident, problem, and change management processes.
• Coordinate with database, application, network, security, and cloud teams.
• Monitor server availability and ensure compliance with SLA and security require