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experience

 

Unix/Linux System Administration

MARKOV Solutions is the free-lance company of Mark Overmeer.

During my study Computer Science an Nijmegen University, I came in touch with Unix. Since then, I have been working with many kinds of Unix and Linux. Don't ask me a thing about Windows, ask me about Unix!

My first occupation was in the main computing center of the Dutch National Aerospace Laboratories (NLR). My task was to write system maintenance code, which had to run on over 20 different brands of Unix. The second job was as trainer and course developer at Netherlands largest Unix training company AT Computing .

Unix/Linux is the platform of choice for all my activities: programming, website building, etc. My experience can help your organization in various ways. To give some examples:

  • you have short term or part time need for some extra hands in your computing center,
  • you are in need for advice on infrastructural improvements,
  • you need someone to disentangle the current situation both the hardware and software,
  • you want a stable (re-)installation of your Linux system, or
  • you like to know whether Linux is an alternative for your Windows environment.

experience

  • Trainer Introduction Unix Users at AT Computing.
  • Trainer Experienced Unix Users at AT Computing.
  • Trainer Unix Administrators at AT Computing.
  • Course development Linux Daily System Maintenance at AT Computing.
  • Course TCP/IP-1: Local Area Networking at AT Computing.
  • Course TCP/IP-2: Wide Area Networking at AT Computing.
  • Six years multi-platform application developer for Unix in a huge networking environment: the computing center of the Dutch National Aerospace Laboratories (NLR).
  • Operating systems used:
    AmigaDOS
    ForceOS
    FreeBSD
    Linux Debian *
    Linux (K)Ubuntu
    Linux RedHat
    Linux SuSE *
    		 MINIX
    NOS/VE
    RT11
    Unix AIX
    Unix HP-UX
    Unix IRIX
    		 Unix OSF/1
    Unix SUPER-UX
    Unix Solaris
    Unix SunOS4
    VM/CMS
    VMS
    (*) = still in daily use

activities

  • System administration for websites, DNS, DHCP, Postfix, FTP, SSH for a few dozen domains. Both commercially as voluntary work. (1995-)
  • Teacher "Linux" at the "School voor ICT" in Arnhem, part of the school for intermediate vocational eduction RijnIJssel. (2002-2004, 2011)
  • Installation and daily maintenance of a network of Linux file-servers, each with 2 to 16 TeraByte of disk-space (2004-2011)
  • Maintainer of the backbone network infrastructure of the Geomatics Business Park GBP (2004-2011)
  • Maintainer of a small business infrastructure, with a few central Linux servers and a dozen Windows PCs (2003-2011)
  • System, database, and network optimization for an hotel bookings agency. (2003-2004)

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2026-07-13