Unix System Administrator
Resume:
Gregory A Johnson
**** *. ****** **. ***** ***-**9 Arlington, TX 76017
*********@*****.***
Key Skills
Oracle 8i 9i 10g 11g
Diag, Fmadm, Hardware Administration
BSD, Linux / Unix Administration
Oracle RAC, ASM, Grid Control, Dataguard
Oracle, HP, IBM backup libraries
OS Integration
Rman/ Flash back and Datapump
Cisco and Brocade Fiber Switches
Bash, CSH, KSH Scripting
Hitachi, EMC and IBM SVC storage
OAS 10g and 11g
Solaris 2.6 - 11
System P,X,M
AIX 6.1,7.1/ VIO / NIM
DNS / DHCP / HTTP / SMTP
OLTP and OLAP
RedHat Enterprise Linux Satellite
Network and OS Security
DAD / Datasource
Oracle OEM
EMC AVAMAR, Data Domain
PostgreSQL, MySQL
Veritas Cluster Server
OS and Database DR
DevOPS
Veritas Volume Manager
Vulnerability Remediation
TECHNICAL QUALIFICATIONS
IBM: 9119 695, 9117-MMA, 9117-MMB, 9117-MMC, 8231-E1D, 8231-E2D, 8233-E8B, 8236-E8C, HS22 Blade server, IBM X series Xeon servers, 7013-580, 7017-585, 7028-6C4, 7038-6M2, 7040-681, 8203-E8A, 9119 590, 9119-FHA, X3550/X3550 M2 HMC, XSeries 336 HMC, 2105 Shark, 2107 Shark, XIV, DS5300, DS8000, 3592 E05 and E06 encryption, 3494 Tape Library, 3581/3584 Tape Library, 3593/TS3500 Tape Library
Oracle: M4000, M5000, T2, T3, T4-1, T4-2, T4-4, T5-2, T5-4, T5140, T5220, T5240, E25000, E15000, E10000, E6900, E6800, E4900, E4800 V490, V480, 280R, V240 V, Sun Netra servers, Sun Storedge Disk Arrays
SAN: Cisco MDS 9500/ 9509 San Switch, San Volume Controller, Brocade Silkworm.
Backup: EMC Avamar, EMC Data Domain STK 8500, STK L700, Storedge l9, t10000 tape encryption
Operating Systems: IBM AIX 5, 6.1, 7.1 Red Hat RHEL 4,5,6,7, SUSE Linux 9,10,1. BSD OS, Sun Solaris 2.6,7,8,9,10,11 and SCO Openserver 5
Software: Oracle 8i, 9i, 10g, 11g, Oracle Application Server 9.0.3, 9.0.4, 9.0.4.1, and 10.1.2, Oracle HTMLDB, Oracle Apex, Oracle XMLDB Oracle Dataguard, Oracle Enterprise Manager, Oracle RAC and Microsoft SQL Server solutions.
Infrastructure: DNS, HTTP/HTTPS, FTP, SMTP, NNTP/NNRPD, NTP, SFTP, SCP, OpenSSL, SSH, socket servers. Checkpoint Firewall, IPFW, Iptables, Iphcains, masquerading, NAT, Kerberos and Kerberized services, Proxy and proxied socket servers, GRE, tunnelling, and VPN solutions Veritas Netbackup 5 6 and 7, Solstice disk suite or SVM
Languages: perl,python, sed, awk, and other shell (unix) scripting languages, JavaScript, visual basic script, html, shockwave flash action script, php, sql
Experience
HP 9/2015 – Present
Charleston, WV
Sr Unix / Linux Administrator
Planning Security updates for Linux Servers
Provisioning of disk space in Vmware and Linux VM
Hardening of OS via patching osad / yum and Tenable configuration enhancement
Firmware and OS patches of T3-1, T5240, T5220, m4000 m5000 servers
Bash, Python scripting for task automation
Administration of host based firewall FirewallD Iptables
Administration of Solaris 10 and 11 servers
Administration of LDOM service domain and control domain on Oracle Servers
RedHat Satellite 5.5,5.6, 5.7 Administration, configuration, and Errata updates
PostgreSQL 8.4 backend Database Administration, backup and automation
Vacuum, Analyze, index rebuild and explain plan SQL optimization
Apache, PHP, MySQL stack source code build and application testing
PNC Bank 12/2014 – 9/2015
Pittsburgh, PA
Sr Linux/Unix Administrator
Vulnerability remediation, patch planning and upgrades in support of applications
AIX 6.1 and 7.1, Solaris 9,10 and 11 and Red Hat RHEL patching
Administration of Development servers running Solaris 11
Veritas Cluster, Sun Cluster, and Oracle RAC cluster support
System Hardening, Intrusion Detection, vulnerability remediation and system stability
OS and SUDO Access additions and removals
Python, Expect, sheel and other script language coding
Lun and Volume Group additions. Online disk file system growth
Sun Sparc ILOM and system firmware upgrade
HMC, VIOS administration, maintenance, upgrading. IBM Frame Firmware upgrading
Bash, Ksh and other Shell scripting for patching, administration and maintenance of OS
Installation, Configuration and Administration of RHEL VM’s
Host Key, SSH key, known hosts management
VIO Server 2.2 and LPAR / Power VM configuration.
TCP/IP networking and troubleshooting
AIG 08/2013 – 12/2014
Winston-Salem, NC
Sr UNIX Administrator
AIX 5.3 6.1 patch management, interim fix addition / removal. Service Pack and Technology Level Upgrade
IBM HTTP Server and Apache 2.2 and 2.4 Server Administration
HACMP Installation and Administration 7.1.3 for Distributed Systems Management
NIM Server, mksysb Backup and Restore, boot from NIM and Disaster recovery procedures
Nimadm migrations from 5.3 to 6.1. Alt disk installs, clone, mksysb
Python Bash, Ksh and other script coding
Managed NFS, Avamar, Data Domain
Installation, Configuration and Administration of RedHat Enterprise Linux Linux VM’s
Tivoli Storage Manager Administration. System backup and restore procedures
VIO Server 2.2 and LPAR / Power VM configuration.
HMC administration, maintenance, upgrading. Frame Firmware upgrading
EMC Avamar administration. EMC Data Domain Administration. Adding clients, schedules, policies, check backup and dedupe efficiency.
EMC VMAX NFS mounts, EMC SAN Storage
Vscsi and NPIV VIO LPAR configurations.
Linux and AIX LVM and filesystem setup. Add / grow / shrink volume group and file system
Oracle RAC, Grid Control, and CRS cluster administration for Distributed Systems Management
Fannie Mae 03/2012 – 08/2013
Urbana, MD
Sr UNIX Administrator
Veritas Cluster Server administration for Distributed Systems Management
Patching and bug /vulnerability fixes in Solaris, RedHat Enterprise Linux and Suse Linux and AIX
Hitachi, EMC, IBM San Storage
Apache 2.2 Server administration
Solaris LDOM, Solaris Zones as well as Linux Xen Virtualization
Zpool, Rpool and ZFS file system administration
Administration of Vmware ESX version 4 and 5 and Vmware Linux clients
Suse Linux 10 Administration. IBM Blade Center and X-Series hardware
Aix 6.1 Administration. IBM P-Series Server and IO Drawer Hardware Administration.
Administration of Xen Domains running RedHat Enterprise Linux and Suse Linux
Add / Remove / Grow / Shrink VXFS Filesystem. Add Lun and put into VERITAS Control
Veritas Volume Manager Vxfs deport / import and I/O Fencing for VCS
VCS cluster NFS Server Administration, Export NFS, Mount NFS
Failover, Load Balance and Parallel Processing Veritas cluster administration
Veritas NetBackup administration, backups and restores
IBM 12/2010 – 3/2012
Gaithersburg, MD
System Administrator
Disaster Recovery of various HP, IBM and Sun Servers
AIX 5.3 6.1 and 7.1 Administration and Disaster Recovery
Cisco San Zone and Zoneset configurations
DS8000, DS 5300 and SVC virtual storage configurations
LUN creation and cleanup from various Storage Arrays and tape Libraries for DR site activities.
Disaster Recovery of Oracle Database and Oracle RAC cluster 10g/11g
Web Server and Application Server disaster recovery including Apache server 2.2/2.4
Zpool, root zpool and zfs filesystem administration and live update
Disaster Recovery of Solaris Servers with Veritas Cluster and Veritas Volume manager
Disaster Recovery of RedHat Enterprise Linux Servers
TCP/IP networking and troubleshooting
NIM mksysb backup and restore methodologies
Solaris Jumpstart and Flash Archive backup and restore methodologies
Solaris Zoning and ZFS configurations
TSM backup and restore methodologies
Veritas Netbackup Backup and Restore Methodologies
Computer Innovations 03/2007- 12/2010
Savannah, GA
System Integrator
Administer Symantec Netbackup 6.5
Management of Solaris Servers with Veritas Cluster and Veritas Volume Manager
Administration and Management of RedHat Enterprise Linux and Suse Linux Servers
Network and system monitoring via nagios
Apache Server Administration. Administration of Tomcat Server. Forward and Reverse Proxy, mod_rewrite
OC4J and standalone JAVA based application server support
Patching and bug / vulnerability fixes in both database, middleware and OS
Oracle Application Server, Oracle XMLDB Oracle Apex Server Administration. Mod_osso, mod_oc4j
Configure Oracle DAD, mod_plsql and datasource for Oracle J2ee and Apex Applications
Clustered Middleware Server Oracle APP Server, Weblogic for distributed systems management
Clustered Java App Server, OC4J, Weblogic instances for Distributed Systems Management
Create or Modify Apex workspace for Apex Applications.
Oracle Database Server 11g administration. OEM 10g and 11g setup and configuration.
Oracle Rac Cluster 10g Administration
Pam based LDAP authentication, Application based LDAP authentication via service account or LDAP key
TCP/IP networking and troubleshooting
VMware Server 4.0 Virtualization
Red Hat, RHEL and Centos Administration. Server hardening, iptables configuration.
LAMP and XAMPP stack administration
Application development in Python, PHP using MySQL and PostgreSQL databases
PC and Business use computer diagnostic and repair services
Network configuration and troubleshooting
Administration of Active Directory, Exchange, Exchange Database and Windows Clients
Administration of SQL Server, SQL database performance
Backup of Exchange and SQL Server databases.
System and network monitoring via nagios
Administration and Configuration of server, midrange and blade systems
Administer Web Servers (Apache, IIS)
Patching and bug / vulnerability fixes in both database, middleware and OS
IBM 10/2006 - 3/2007
Fairfax, VA
Oracle DBA / System Administrator
Oracle DBA of 10 database systems and over 60 OLTP and data warehouses instances and database version from 7.3.4 to 10.2.0.3
AIX 5.3 6.1 and 7.1 Administration and Disaster Recovery
Provide 24X7 DBA and System Administration support for Oracle environment for hundreds of users and schema owners including government customers
Configuration and maintenance of Oracle RAC, ASM and Grid Control
Provide 24X7 DBA support to application developers. Installed new PL/SQL, stored procedures and packages in support for pre-existing applications. Debug code, check schema for invalid objects and execute tests on code via sqlplus and Quest Toad.
Manage exports, hot and cold backups of all database instances and performed database restore and recovery when needed
Install one-off, critical patch update and patch sets on development databases, test and install on patches on production systems
Performed SQL, and instance tuning from buffer cache and shared pool to log buffer sizes as well as DDL modifications which positively impacted performance
Install and test packages, stored procedure, PL/SQL, materialized views and batch code for reporting and business intelligence purposes
Managed table space, data file, extent, segment, and block sizes and tuned kernel, disk, cpu and memory issues on database servers
Check and update patch levels on Sun, AIX, Suse, and Redhat RHEL servers as well as IBM System P, System X as IBM blade systems
Check and update patch levels on Sun, AIX, Suse, and Redhat RHEL servers
Check legato backups for Sun, Linux, AIX, and Windows clients as well as file system storage for database cold backups.
Maintain patch levels for OS and RDBMS as per IBM APAR announcements
TCP/IP networking and troubleshooting
Maintain servers for OAS 10g infrastructure, middle tier and Oracle Applications 11i and install patches for all associated software
Created Unix Shell scripts for system administration and Oracle DBA functions
Administration of IBM SAS VTL disk system
Florida Dept of Revenue 4/2006 - 10/2006
Tallahassee, FL
Oracle DBA / System Administrator
Provided 24x7 support to state government Oracle resources.
Administration of Oracle database systems standalone, dataguard and RAC Cluster
Java based application server support
Managed SQL Server Database of tax payer information from Department of Financial Services
Provided 24x7 supports to application developers and application users for data load application. Rewrite stored procedure in the event of error and test application changes.
Complete management of exports and backups via Veritas Netbackup
Managed data file location and suggest performance enhancements
Managed and tuned data load applications. Performed SQL and batch script changes to enhance performance.
Managed data file, extend, segment size indexes rebuild and tables spaces also for performance
Installation of verification of database patches
Performed instance anddatabase tuning. Shared pool, SGA and DB Cache sized in spfile / init.ora
Performed regular maintenance and monitoring such as dbms_stats, stats pack, explain plan.
Maintained database DCL, DDL scripts. Recreate Database, Schemas
Created shell scripts, batch job, and dbms_jobs scripts for task automation
Check performance of data loads and check data dictionary views such as v$session_wait, v$session_longops, v$sql, v$sqlarea to identify high load sql.
Managed OAS 10g Middle Tier, OHS, OC4J associated databases for java applications written for Oracle Application Server.
Cox Enterprises 9/2005 - 4/2006
Atlanta, GA
Senior UNIX Administrator
Increase throughput and reliability of 220 Netbackup clients. Reported and tracked errors with backups
Increase reliability of offsite vaulted tapes
Increase reliability of Vintella Authentication Services on UNIX hosts.
Installation of SATA to SAS VTL hardware
Capacity planning and tape utilization statistics for backup system
Troubleshoot and increase reliability with Oracle, SQL Server and Exchange database agents
Reduced backup errors from fifty to virtually none.
Managed VERITAS Netbackup agent for Oracle. Create rman script for online or offline backup
Solaris Cluster servers with Veritas Cluster server
Administration of Solaris Servers with Veritas Volume Manager
Weblogic and standalone OC4J administration
Configure secure connectivity for transfer of sensitive information to banks
Configure SSH/sftp connection with clients
Install, manage and configure servers for E-business applications such Web logic, ColdFusion, Oracle
Perform Server Installations using Solaris jumpstart, Anaconda or RHN Satellite Kickstart.
Monitor and Performance tune Oracle database in data load situation
Create SAN and SCSI configurations for use in housing Oracle database files and monitoring of disk service times
Modify and configure Listener and TNS parameters for new network infrastructure.
Configure JDBC, ODBC and native data sources for connection to database servers
Configure DAD for mod_PLSQL applications or Oracle APEX
Nagios system monitoring
Patching and bug / vulnerability fixes in both database, middleware and OS
Managed server and database backups with Veritas Netbackup, rman and Veritas Netbackup connector to rman.
Shell (unix) scripting with sed, awk, tr, bash, ksh, tcsh, and python
Installation of Solaris 10 with wan boot jumpstart feature for installation from remote server
Administration of Veritas Netbackup to Sun fiber channel Library and VTL.
Archer Daniels Midland 8/2001 - 9/2005
Decatur, IL
Oracle DBA / UNIX System Admin
Oracle DBA responsible for installation, patching, backup and recovery, performance, data integrity, SQL and Instance tuning, and integration into applications such as HTMLDB and XMLDB
Administration of Solaris Servers with Veritas Volume Manager and Veritas Cluster
Administration of RedHat Enterprise Linux Servers and RedHat Enterprise Linux Cluster Services
Administer SeqStore terabyte data warehouse of NCBI and Expasy Molecular Biology sequencing data
Integration of Active Directory into OID, control of synchronization such as search filters, domain rules and attribute rules, and Authentication and Authorization of users (JAAS) such as Kerberos and Windows Native Authentication
Administration of Sun Midrange and Sun Blade systems
Install, configure and develop code in web application environments including HTML, PHP, Cold fusion MX 6.1, 6 and 5. The applications are designed integrate with databases such as Oracle, Sybase and MSSQL Server
Implemented Network Backup/Recovery using Veritas Netbackup, ADIC Scalar AIT 3, SunStoreEdge L9 and DLT 8000 drives.
Security auditor of UNIX systems. Used sysctl, xinetd, tcpd, tcp-wrappers, umask, ulimit, rootkit detection, port scanning and protocol analysis such as nmap and tcpdump
Optimize and tweak Solaris8 kernel parameters on Sun Fire Servers and Oracle Database Server.
Nagios system monitoring
System and Application developer with knowledge of wide variety of programming languages for system maintenance and Application development for scientists and other administrators.
Designed Unix Terminal Server Using Citrix MetaFrame, Solaris 8, Source code built X desktops such as Gnome 1.4, KDE 2.2.2, Enlightenment, ROX, XFCE, and Unix Office Applications such as Open Office, Koffice, and gnome office.
Implementation of SAN environment using Sun StorEdge T3, HP MSA 1000, Brocade Silkworm, and multiple fiber channel HBA.
Design and Implementation of Apache web server, Apache modules, and web accessible CVS repositories.
Patching and bug / vulnerability fixes in both database, middleware and OS
Expert Solutions, L.L.C. 9/1998 - 8/2001
New Orleans, LA
System Administrator
Administrated and maintained UNIX network and maintained firewalls, access lists, TCPwrappers, primary and secondary DNS, send mail, FTP, and Progress Database machines.
Installed, patched and upgraded commercial or open source software.
Installed and maintained Wide Area Network to secondary site.
Administered and maintained Ethernet and RF networks and all their associated equipment.
Installed, configured and administered all equipment such as digiboards, Port Servers, routers switch, and other network equipment such as IP based printers and wireless hubs.
Administered all associated computer equipment, along with installing database servers, terminals, scanners, and bar code readers in order to process orders taken at the distributor's show.
Utilized OMR forms and scanned them into the database. Processed information about customers' registration and provided statistics to the distributors using SQL queries or a pre-written Progress program.
Accomplished complete Y2K compliance on all workstations and servers, which included bios upgrades, software upgrades, router software upgrades via serial or TFTP.
Added an Exchange Server for in-house email and installed a backup mail server in the event the main server goes down.
System Integrator of BSD Unix, RedHat Enterprise Linux and Suse Linux, Windows (of any type), MacOS, SCO, Solaris.
Installed network with the customer's current equipment or bought new equipment to support the customers’ computer/networking needs.
Network Engineer and DBA for New Orleans Depot. Installed and configured MS BackOffice 4.5 NT Option Pack, SQL 7, and Site Server 3 for in-house web hosting solutions for EDI transmissions.
Performed database dumping and reloading, migrating from one database solution to another, modifying termcap and server side keyboard settings, backing up and restoring data from tape, and optimizing speed by modifying kernel and memory usage parameters.
Webmaster for pre-registration website for Demand Publishing Inc. entailing Progress database, Apache Web Server and TCP/IP connections to both facilities.
Configured and customized auto dialer and web browser for ISP dialup customers.
Administered Solaris 2.6, 7, 8, Kerberos 5, Cyrus-Imapd, for authentication
Administered Ipchains, IP Masquerading, for enhanced security
Installed and configured additional security software such as Socks5, Natd, Firewall Toolkit, tcp-wrappers, Tripwire and Xinetd. Installed and configured Checkpoint firewall for businesses.
Patching and bug / vulnerability fixes in both database, middleware and OS
Verio Gulf South 5/1996 - 9/1998
New Orleans, LA
Sr Linux Administrator
Installed Checkpoint firewall as an internet security option for business customers.
Administration of RedHat Enterprise Linux, AIX and FreeBSD servers
Worked as a ISP Administration team member with 14,000 customers
Setup Whistle configuration web server running Apache/Front Page.
Setup and maintained End User Whistle server
Troubleshot and provided support to secure web server running Stronghold.
Developed web sites using complete HTTPS instead of HTTP.
Implemented contact manager software, which utilized MS SQL Server.
Completed onsite installations of networking solutions and equipment to many businesses.
Administered CVS and maintained server configurations with CVS
Oversaw News NNTP server feeds
Setup, configured, administered and oversaw INND news server for ISP
Configured DNS with NNTP information to ensure that news feeds were directed to their correct locations.
Script writing for dial up data usage
Formatted Ascend Radius logging information into a standard format to ensure recognition by the SQL table.
Education
Oracle University 12/2003
Houston, TX
Oracle OAS 10g System Administration I
Oracle University 12/2003
Belmont, CA
Oracle OAS 10g System Administration II
Oracle University 11/2003
Cincinnati, OH
Oracle RDBMS 10g New features
University of New Orleans 8/1996
New Orleans, LA
Computer Science Major
Centenary College of Louisiana 8/1995
Shreveport, LA
Music Major / Computer Science Major
B.M. Degree
Minor in Computer Science
CERTIFICATIONS
Red Hat Certified System Administrator 160-042-834
A+ Certified Technician
Microsoft Certified Professional
Microsoft Certified Professional
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