Red Hat Linux Administrator

Red Hat Linux Administrator

Columbus OH.(Hybrid)

9 months

Locals pref.

State of Ohio

USC/EAD

Red Hat Linux

Required: Minimum 5 years' experience with Red Hat Enterprise Linux (RHEL) v6,V7.x and v8 in a datacenter environment

Required areas of knowledge & experience:

Installation of RHEL7and 8 in a standalone and VMware environment

Stop, Start, restart, enable and disable running of software & system service daemons via systemd system and service manager

Installation, update and inventory of software packages via rpm command

Shell scripting experience, e.g. bash for routine system administration tasks, creating reports

"yum" for patching and package installation from central repository

Cron/crontab for periodic scheduled jobs

Creation & management of filesystems and volumes using LVM, partitioning of disk devices

System performance analysis, system log analysis and system troubleshooting techniques

Logrotate for periodic rotation and compression or purge of older logs

Remediation of common Linux server issues such as filesystem nearly full, user cannot login, etc.

TCP/IP networking: Configuration, troubleshooting, use of tcpdump and Wireshark

Setup/configuration of network interfaces

Setup/configuration of typical networked services such as DNS, NTP, NFS, FTP, SFTP,SSH,Apache HTTPD,CIFS,SMB/Samba,syslog/rsyslog

Security hardening practices, including RHEL7's firewalld

SSH authentication techniques (password, key-based)

Use of sudo, sudoers file, and "sudoers.d" directory

Grub configuration & setup to control Linux boot and system parameters at boot time

Troubleshooting all of the above

Excellent oral and written communication skills

Preparation of documentation for technical staff and management (technical procedures, description and diagramming of operational & network flow, performance reports, etc.)

Create periodic reports to document your job activities

Required Skills and Experience

RHCSA (Red Hat Certified Systems Administrator RHEL V7.x)

Red Hat Satellite V6.x used for administration of RHEL7 systems

Familiarity with system tuning & setup requirements for Oracle RDBMS utilizing ASM disks

Familiarity with system tuning & setup requirements for Vertica database

MediaWiki for online documentation management

NMON/NMON Visualizer (collection & reporting of system performance information)

Postfix SMTP gateway

Microsoft Active Directory and LDAP (as a "client" of these services, not as an administrator under Windows)

Systems programming language (Python preferred, or Perl)

Management of SSL certificates for HTTPD/webserver

Microsoft SCOM agent on Linux

RHEL V6.x system administration

Simple HTML web page creation, also forms pages with back-end scripting language (Python, Perl) to accept/sanitize/parse submitted form data.