Unix/Linux Senior System Administrator

Gary Smith

Address: ***** *** ****** **., **** Garrison CA 93933

Phone contact: 559-***-****

Email contact: ****@***********.***

Work Experience:

Linux Enterprise Server Administrator

Linux/Solaris 10 system administrator and solutions engineer Clearance:

Cleared for Top Secret information and granted access to Sensitive Compartmented Information (TS/SCI) based on single scope background investigation competed 09/1/1992 and updated to present. Deloitte Senior Linux System Administrator

2017– Present

● Linux System Administrator for government customer primary and secondary site.

● Installation and configuration of RedHat 6 and 7 systems including establishing baseline.

● Implement security modifications for hardening systems according to Security Technical Implementation Guidelines

● Deploy Appdynamics monitoring tool to analyze production application performance

● Server firewall configuration, and secure key-based SSH configurations for remote administration.

● Setup, configuration, and administration of NetBackup master server, appliance and clients Ace Info Solutions Inc. Unix/Linux System Administrator 2012 – 2017

● Linux and Solaris 10 System Administrator for government customer primary and secondary site.

● Installation and configuration RedHat 6 systems establishing baseline.

● Installation and configuration of Solaris 10 SPARC and x86 operating systems on SPARC hardware and virtual machines for production environment.

● Implementation of security modifications for hardening systems according to Security Technical Implementation Guidelines.

● Installation and configuration of VMWare ESXi for IBM and HP blade systems. Hardened VMWare environment to STIG guidelines for production.

● Engineer and integrate up-to-date web servers into agency architecture. Design and implement NetBackup plan dual sites. Integrate NetBackup appliance and SAN into configuration.

Jacob and Sundstrom Unix System Administrator

/ ICF International Inc.

2008 – 2012

● Unix System Administrator for primary and secondary site.

● Build and deploy Solaris 10 OS machines for specific applications, maintaining them with minimum downtime.

● Maintain strong system security stature implementing OS hardening via configuration changes and installing patches.

● Implement DNS modifications for weekend production application switchover from primary to secondary site.

● Build and support Enterprise Oracle Solaris Database Cluster systems in Oracle RAC environment on multi-node Oracle M4000 hardware.

● Build and support Oracle SAN housing multi-Oracle application databases which are replicated between the primary and secondary sites.

● Work with network engineers to resolve system network configuration or network appliance issues.

Skills:

Experience installing and maintaining Linux servers (Red Hat, Suse). VMWare administration experience and training

Shell scripting experience with Bash and SH.

Experience writing playbooks and automating configuration with Ansible. Skilled with regular expressions and text search, formatting, and replacement tools: grep/sed/awk.

Experience with file search and manipulation tools: find, locate, xargs. Log management experience: rsyslog, logrotate.

Storage management experience with tools such as: fdisk, gdisk, parted, LVM, df, du.

Experience with the following file systems: ext2/ext3/ext4, xfs. Experience with iSCSI SAN storage management under linux (iscsiadm, targetcli). NAS experience with NFS(v3, v4) and SMB/CIFS protocols under linux. Sudo policy configuration experience.

Network administration experience with tools such as: ifconfig, netstat, lsof, ip, ss, route, ping, nslookup, traceroute, wireshark, tcpdump, and others. Firewall configuration experience iptables and firewalld. Experience with SELinux policy management and configuration. Experience with the following network protocols: UDP/TCP/IP, DHCP, DNS, CIFS, NFS, SSH, FTP, TFTP, HTTP, Kerberos, LDAP and others. Remote server administration experience with SSH.

Experience with remote desktop applications RDP.

Terminal text editor experience: vi/vim.

Process management and monitoring: top, ps, kill, pgrep, pkill, killall. Experience with job scheduling using cron and at.

Experience with rpm packages and yum package managers. Remote file synchronization and backup experience with rsync. Experience deploying and managing Linux servers with VMware ESXi. Experience with Apache httpd web servers.

Experience with the following scripting and programming languages: Unix/Linux Shell scripting, and Python.

Education:

B.S. Computer Science with Math minor, Virginia Tech Blacksburg, Virginia Certifications:

CompTIA Advanced Security Practitioner (CASP) Certification CompTIA Security+ Certification, CompTIA Security+

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