Linux Administrator – L2

2 days ago

Gurugram, India IDBI Intech Full time

The Linux Administrator (L2) will be responsible for the installation, configuration, monitoring, and maintenance of Linux servers across production and non-production environments. The role involves providing day-to-day operational support, troubleshooting, and performance optimization, while ensuring high availability, security, and compliance of systems.Key Responsibilities: Core Administration & Monitoring Installation & configuration of Linux Operating Systems. Hardening of Linux OS and patch installation. Health monitoring of Linux servers (CPU/Memory/Disk/System Load). OS reboot, shutdown, and start-up procedures. OS log management (rotation, purging) and monitoring of system logs. Disk management, file system management, user & group management. Configuration of network, NTP, and OS parameters. Installation of RPMs/software packages (Java, sudo, lsof, etc.). Management of cron jobs. Support & Coordination First-level coordination with Application Support and Development teams for OS-related issues. OS support during DB patching, application patching, and hardware maintenance. Troubleshooting and resolution of hardware, software, and communication problems. Logging calls with hardware OEM/AMC vendors for replacement of failed parts. Logging and coordination with software OEM/ATS vendors for software-related issues. Provide L2-level support and resolution of issues escalated by L1. Advanced Administration Linux Kernel upgrade and OS migration. Installation/configuration of network services (DNS, NFS, SAMBA, YUM server). SAN storage-related configuration in Linux servers. Support for DC/DR switchover and switchback activities. Installation/configuration of Apache and Tomcat servers. Performance monitoring, tuning, automation, and optimization activities. RedHat PCS cluster configuration, troubleshooting, and support. Architecture, Compliance & Management Planning & designing deployment architecture for Linux servers. Setup and administration of high availability and disaster recovery (HA/DR) environments including clustering, failover, fencing, and recovery. Capacity planning and performance statistics analysis. Formulation of backup and recovery strategies. Audit and compliance support. Documentation, inventory maintenance (servers, users, groups). Team/resource management and coordination with client/vendors/other support teams.

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