Linux System Administrator Resume
Raleigh, NC
SUMMARY
- Over 5 years of experience as a Linux Administrator in Linux System Administration and Server Virtualization.
- Perform standard system administration tasks, such as patching, software and hardware upgrades, troubleshooting and problem resolution.
- Excellent communication and technical training skills.
- Experienced in designing, configuration and administration of RHEL, CentOS, Fedora, and VMware on MAC/HP.
- Good experience in configuring network services: NFS, DHCP, DNS, SAMBA, FTP, HTTP, SSH, Web Server and Firewall.
- Hardware and software RAID management of storage for redundancy and high performance. Created Logical Volumes on SAN by using LVM.
- Experienced in configuring and maintaining System Securities using IPTABLES. Job Scheduling using Cron and experience in installation of patches and packages.
TECHNICAL SKILLS
Operating System: RHEL/CentOS 6.x and 7.x, MacOS Mojave, Windows 2012/2012R2.
Networking: SAMBA, TCP/IP, DHCP, SSH, FTP, Cisco Layer2 and Layer3 switches, NTP.
Servers: Apache and Nginx, Mail Servers (Postfix and Dovecot), Nagios, PXE, DNS/DHCP, LDAP, FTP, Samba, LAMP stack, Ansible, HAProxy, NFS/Autofs.
Scripting language: Bash Shell, Python(learning).
Logging: At, cron, Anacron.
Database: MySQL, MariaDB.
Disk Management: Mounting, File systems troubleshooting, lvm.
Mail: Sendmail, dovecot, Squirrelmail.
Web Servers: Load - balancer, Apache virtual hosts.
Identity Management: OpenLDAP, PhpLDAPadmin.
Automation: Ansible, PXE, Kikstart.
Change Management: iTOP, Jira.
File Sharing: FTP, NFS, AutoFS, SAMBA.
Monitoring: Nagios system monitoring.
Security: Network (firewall, iptables), File System ( SElinux, Standard and Advanced File Permissions, Access Control list).
Virtualization: VMWare ESXi 5.x and 6.x, exposed to XenServer 6.x and Linux KVM.
DevOPS Tools: Git, Jankins, Docker and Kubernetes, Ansible, iTop.
Hardware: Dell PowerEdge 2950, Dell R310, Blade Dell C6100.
PROFESSIONAL EXPERIENCE
Linux System Administrator
Confidential, Raleigh, NC
Responsibilities:
- Network and infrastructure monitoring using NAGIOS.
- Installed and configured various network services such as DNS, DHCP, NFS, SMTP, Apache, SAMBA.
- Provided on call support by rotation 24x7.
- Ran, maintained, and scheduled tasks with cron and anacron.
- Worked collaboratively with my team in RedHat a migration project, which includes migration servers from RHEL6 to RHEL7 and CentOS installation. Building and configuring new servers needed for the migration project, created webservers, load balancers, mail servers and DNS entries and fully participated in this project.
- Wrote scripts to automate simple everyday tasks and scheduled those tasks in the system.
- Created physical volumes, volume groups and logical volumes.
- User Management with LDAP and local.
- Defined and performed system backups and recovery procedures.
- Installed and configured Hardware.
- Automation with Ansible
Linux System Administrator
Confidential, Charlotte, NC
Responsibilities:
- User Management.
- Performed daily system monitoring
- Patched servers every quarter.
- Synchronized time of the servers, using NTP to ensure consistency within network.
- Performed job scheduling using Cron.
- Checked apache & mail logs to troubleshoot web servers and mail servers related issues.
- Managed LVM’s.
- Monitored whole system infrastructure for any errors.
- Installed and configured Ansible. Installing and modifying packages using Ansible modules. Wrote and deployed various playbooks.
- Documented troubleshooting material for each problem solved for the company database.
- Configured firewall and SELinux settings.