Linux - Administration

Roles and Responsibilities

Experience in RedHat Enterprise Linux and Knowledge on Oracle Cloud Infrastructure Linux

Handson administration and operation of scalable IT infrastructures on both internal cloud vmware and physical environments

Install and set up Linux systems and servers often for organizationwide deployment

Assist and troubleshoot client end users with system knowledge related to user authentication user management file configuration storage access backup and navigation through files

Create monitor and review s generated by tools and systems and resolve based on SOP Notify L2L3 team for server application and database service based on thresholds defined in the system

Set repository install update and remove packages

Manage network printers file sharing NFS SAMBA Shell scripts

Deploy configure maintain systems including software and core services

Manage security including basic firewall security patch and Linux configuration optimization and hardening

Create and configure file system and attributes such as permissions access controls list encryptions and network file system

Manage file system permissions for users and groups create and apply policies

Resolving server issues job scheduling and maintenance

Operate running systems including booting into different run levels identifying processes start stop virtual machines and controlling services

Configure local storage using logical volume manager LVM partitions and logical volumes

Perform OS and application upgrades and server migrations to new environment

Install and maintain agents on servers for centralized monitoring and management

Maintain inventory updates of system in centralized inventory and management systems

Utilize Linux scripting Bourne PERL BASH PowerShell etc to optimize and automate system administrator tasks

Provide technical support for disaster recovery efforts

Perform hardware and software technology refreshes ensuring milestone compliance while coordinating with MPs to minimize disruptions

Work with and manage Incident Management tickets within help desk ticketing system

Perform backup recovery functions for Linux server environments

Experienced in the management of Enterprise Infrastructures and Systems including Linux RHEL CentOS Ubuntu Oracle Linux and SUSE Linux

Linux troubleshooting skills during the migration phase and co ordination with multiple team

Samba SNMP NTP PAM SSH NFS CIFS LVM ZFS Shell scripting Patching YUM IPS RPM package management SUDO Multipath SFTP DNS SAN NAS principles including hands on FC and iSCSI