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Dan
ostromd@earthlink.net
810-986-0759
Brighton, MI 48116
System Engineer IV
36 years experience W2
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Summary

OBJECTIVE:

A position where more than 20 years experience as a Senior Unix Systems Administrator (Solaris, LINUX, HP-UX, and AIX) will contribute and allow me to learn new skills to help my employer achieve their business objectives.

HIGHLIGHTS:

  • Building/configuration of kickstart/jumpstart/ignite/nim servers to facilitate building client machines
  • Hardening of *NIX servers and clients against outside attacks (ssh, tcpwrappers, IPtables, authorized keys (RSA/DSA), removal of R-commands/telnet)
  • Kernel performance optimization (Solaris/LINUX) for Oracle server needs
  • Build/configure/maintain Checkpoint firewalls (IPSO, patching, rulesets)
  • Building/configuration/maintenance of RedHat EL (3/4/5) servers, as well as SUN 52xx, M4000, M6000, RX3600 RP3440.
  • Use Solaris Disk Suites to mirror system drives in jumpstart build
  • Logical Volume Manager
  • Administration of DNS Master and slave servers for 100+ clients (bind 8 & 9)
  • Built and configured Amanda to utilized autoloaders for backing up *NIX and PC clients on network(s) (using combination of ntbackup and samba)
  • Built/configured/maintained NAS (1TB), using 10 tape autoloader to facilitate backups using Amanda
  • Administration of AFS servers, for maintenance of user dataspace and accounts.
  • Administration of Kerberos for user authentication and tying into Active Directory for PC accounts (one account login)
  • Make hardware/software purchase recommendations to Dept. heads as needed (3 yr. hardware life-cycle for budget planning)
  • Build/configure/maintain NFS, AFS, DNS, Sendmail, NIS (server/client), Apache

TECHNICAL SKILLS

  • Hardware: SUN 280R, T5220, RX3600, RP3440, M4000, M6000, P710/20/30
  • Software: LINUX RHEL (5, 6,7), SuSe 11, Fedora, Centos, OpenBSD, Solaris 2.5.1 thru 11, zones), HP-UX 8 thru 11.31, IRIX, AIX(5/6/7), VIO server, LPARs, HMC, TRUServer (Ultrix), ESXi 5/5.1
  • Shells/Tools: Bourne, Csh, Tcsh, Korn, BASH, Perl, awk, sed

Experience
System Engineer IV
Information Technology
Jan 2018 - Oct 2019
  • Server migration of RHEL systems (physical to virtual and virtual to virtual) using Vcenter VMconvertor. Data center closing needed to migrate several hundred systems in Phase I.
  • Also use Service Now ticketing system resolve ntp, nimbus, accounts and sudo access for users
Data Center RHEL Systems Engineering vCenter
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Sr UNIX Admin
Information Technology
Aug 2016 - Aug 2017
  • Systems support in Dev/Ops release engineering group for Solaris/HPUX/AIX/RHEL
  • Migrate UNIX systems in Santa Clara lab to Durham NC
  • Install/Configure HPVM 6.4 on 11.31 and create 11.23 VM's
  • Converting standalone environment of AIX/HPUX to virtualized (LPARs/HP vms) in Santa Clara and RTP labs
AIX Devops RHEL Solaris UNIX
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Sr UNIX Admin
Information Technology
Jan 2016 - Feb 2016
  • Mentor Jr. Admin during installation and configuration of 7 OEL servers
  • Demonstrate best practices
  • Build automation
UNIX
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Sr UNIX Admin
Information Technology
May 2015 - Nov 2015
(work remote)
  • Migrate 153 AIX systems from Mexico to Troy, NY datacenter, using mksysb's to create SPOT for install
  • Use HMC console window to monitor install
AIX Data Center UNIX
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Sr. UNIX Engineer
Information Technology
Feb 2015 - Mar 2015
  • Migrate 7 SLES/UBUNTU servers to CENTOS 7 for client
  • Built kickstart and yum repo server for client (Centos 6/7)
CentOS Kickstart Ubuntu UNIX
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UNIX Consultant
Information Technology
Feb 2014 - Jan 2015
(work from remote)
  • Move existing DataCenter from Tel Aviv to Houston TX
  • Build Solaris jumpstart server and create Solaris 10/9/8 clients
  • Build configure kickstart server for client builds
  • Build RHEL 5/6 clients
  • Build LPARs using HMC/VIO server
  • Build AIX NIM server and create AIX 5.2/5.3/6.1 clients
  • Build HPUX ignite server and create HPUX 11.11/11.23/11.31 clients
  • Configure ILOMs/ALOMs to allow for remote console access
  • Make hardware refresh recommendations for all platforms
  • Install/configure HMC for AIX clients
  • Use Vcenter to build VM clients on hosts (allocate disk/memory/network)
  • Built yum repo server for client
  • Resolve DNS/NIS issues transitioning systems to new DataCenter (DC)
  • Resolve user issues during DC transition
AIX DNS Kickstart NIS RHEL Solaris UNIX vCenter
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Sr. Systems Administrator
Information Technology
Sep 2011 - Aug 2013
No skills were added
Remove Skill
Configure SUN ILOMs
Information Technology
Sep 2011 - Aug 2013
  • Configure SUN ILOMs, HPUX ALOMs for remote access Installed/configured
  • Install/configure HMC’s (Hardware Management Consoles) to allow for Management of AIX systems in SC/DCOE/RTP labs
  • Configure SUN/HPUX/AIX systems for DHCP
  • Installed/configured M6000 (4) SPARC, (3) X86 blades
  • Design/install/configure jumpstart for Solaris, created flar *golden images* for Solaris of system disk. to allow for Bare Metal Restore (BMR). Deployed this solution in RTP/DCOE/SC labs
  • Design/install/configure Ignite for HPUX, created *golden images* for HPUX system (BMR) of system disk. Deployed this solution in RTP/DCOE/SC labs
  • Install/configure VIO server and LPARs on IBM P series hardware in SC/DCOE/RTP labs
  • Design/install/configure NIM for AIX, created mksysb *golden images for AIX (5.3,6.1,7.1) system (BMR) of system disk. Deployed this solution in RTP/DCOE/SC labs
  • Use Vcenter to build VM clients on hosts (allocate disk/memory/network)
  • Design/install/configure kickstart RHEL systems in SC/DCOE/RTP labs. Customize port install scripts to allow for total hands-off install. Used NFS installation methodology, no PXE server needed.
  • The process jumpstart/ignite/nim/kickstart processes saved several hours per system of manual installation and configuration, allowing for cookie-cutter installs with no manual intervention
  • Install ESXi 5.0, configure host for Management, Vmotion and vnic interfaces
  • Install/configure OEL on several VMs
No skills were added
Remove Skill
Sr. Systems Administrator - Leader
Information Technology
Feb 2011 - Aug 2011
  • Maintain existing production LINUX RH environment in support of Boeing Commercial Aircraft division across the US
  • Work with Remedy (BARS) to insure proper response to customer tickets
  • Install OVO in RHEL environment
  • Resolve netbackup client issues
Database Backups
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Sr. Systems Administrator
Information Technology
Oct 2009 - Feb 2011
  • Lead Sys. Admin. for Disaster Recovery and Banner projects
  • Built kickstart server for installation and use RHN for patch management
  • Travel to 17 University affiliates to upgrade Puredisk from 6.5 to 6.6
  • Configure SUN 2540/6140 arrays using CAM software, implement multi-pathing for arrays
  • Troubleshoot VxVM kernel issues (SuSE 10)
  • Provide backup *NIX Sys. Admin for support for 17 University affiliates as requested (patching, software installation, etc)
  • Configure netbackup master servers, create SLPs and DR backup policies
  • Configure/maintain Puredisk environment (DR)
  • Maintain DELL blade center (24 blades)
Database Backups Disaster Recovery
Remove Skill
UNIX Engineer
Information Technology
Dec 2008 - Jul 2009
  • Rebuilt kickstart and jumpstart infrastructures
  • Expand swap and filesystem LVM's
  • Opsware scripting (rosh) to update/maintain clients
  • Install opsware, ITM, netbackup (nsr) and vmclient agents
  • Configure VMWare clients
  • Purchase recommendations for SUN M3K and M5K hardware
Database Backups Kickstart Scripting UNIX VMWare
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Sr. UNIX Contractor
Information Technology
Jul 2008 - Nov 2008
  • Build and configure jumpstart server for environment
  • Creating/maintaining user accounts.
  • Tuning the kernel as required by applications
  • Use hardware raid on SUN T5220's to mirror system drives
  • Install/configure ILOM's for SUN boxes to use ssh for connectivity
  • Work with Oracle DBA's to resolve printing issues
  • Use HP Openview Service Center to resolve 3rd level tickets
  • Help resolve sendmail issues
RAID SSH UNIX
Remove Skill
Sr. UNIX Contractor
Information Technology
Mar 2008 - Jun 2008
  • Build and configure jumpstart and ignite server (s) for environment
  • Creating/maintaining user accounts.
  • Tuning the kernel as required by applications
  • Use hardware raid on SUN T5220's to mirror system drives
  • Install/configure ILOM's for SUN boxes to use ssh for connectivity
  • Configure LOM's for HPUX hardware
RAID SSH UNIX
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Sr. UNIX Contractor
Information Technology
Nov 2007 - Mar 2008
  • Created "Golden Image" for HP-UX11.23, after applying STIGS and running SRR checks. Utilized ignite for build clients with "application and database" build formats.
  • Tuning the kernel as required by applications (Oracle, Weblogic)
  • Securing/hardening of the HP-UX Operating Systems.
  • Building Ignite server and creating custom clients in the HP-UX environment.
  • Troubleshooting miscellaneous problems with HP-UX.
  • Build "Gold Images" for application/database servers.
  • Use Veritas to "grow" logical volumes as needed by applications.
UNIX
Remove Skill
Sr. UNIX Contractor
Information Technology
Aug 2007 - Oct 2007
  • Build jumpstart server for Solaris 10 client imaging
  • Use Solaris Disk Suites in jumpstart build to mirror system disk as part of DRP.
  • Make infrastructure/architecture recommendation to site Enterprise System Architect
  • Implement system security on servers, test and development boxes as recommended in STIGS.
Solaris UNIX
Remove Skill
Sr. Unix Systems Administrator
Information Technology
Apr 1996 - Dec 2006
System Administration UNIX
Remove Skill
Sr. Unix Systems Administrator
Information Technology
Aug 1992 - Nov 1996
System Administration UNIX
Remove Skill
Systems Engineer
Information Technology
Jun 1989 - Aug 1992
Systems Engineering
Remove Skill
Independent Computer Contractor
Feb 1986 - Nov 1988
No skills were added
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Edit Skills
Non-cloudteam Skill
Education
Bachelor's in DP
St. Clair College of Applied Arts and Technology
Skills
UNIX
2017
18
System Administration
2006
14
Systems Engineering
2019
4
RHEL
2019
3
AIX
2017
2
Data Center
2019
2
Database Backups
2011
2
Solaris
2017
2
vCenter
2019
2
Devops
2017
1
Disaster Recovery
2011
1
Kickstart
2015
1
BaSH
0
1
Bourne
0
1
CentOS
2015
1
DNS
2015
1
Fedora
0
1
Firewall
0
1
Linux
0
1
MS Active Directory
0
1
NAS
0
1
NFS
0
1
NIS
2015
1
Oracle
0
1
Perl
0
1
RAID
2008
1
RedHat
0
1
Samba
0
1
Scripting
2009
1
SSH
2008
1
SuSE
0
1
Ubuntu
2015
1
VMWare
2009
1