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Business card

I work for IS4IT as a senior consultant for all Unix/Linux related topics, focusing on the current Solaris, Redhat and Suse versions and on small software projects.

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- Some of the things I was working on in the past -
  • Setting up an install environment
    - 1500+ Workstations & Servers - Solaris & Redhat
    - consistent platform independent interface
    - dynamic partitioning
    - classified installation e.g. server-class/client-class
  • Setting up a patch service
    - 1500+ Workstations & Servers - Solaris & Redhat
    - automated patch retrieval
    - automated patchlist updating
    - controlled parallel deploying
  • Setting up a mail environment
    - 1500+ Workstations & Servers - Solaris & Redhat
    - sendmail/postfix combination
    - virus scanning
    - sender rewriting
    - central imap mailboxes
  • Setting up an EAI cluster
    - Websphere MQ
    - Websphere Messagebroker
    - Sun Cluster
    - Oracle database
  • Preparing a Linux workshop
    - basic administration
    - differences to Solaris
  • Setting up a Linux Client Install for Development use
    - based on Redhat Linux
    - including VMware & Clearcase software
    - full integration into existing unix infrastructure and install environment
  • Setting up a Linux Client Install for Office use
    - based on Redhat Linux
    - including Ximian Desktop / Evolution / Connector / RedCarpet
    - full integration into existing unix infrastructure and install environment
  • A Java frontend to create and manage user accounts
    - Java 1.1 compatible
    - same Look&Feel on all platforms using self-written widgets
    - highly customizable
    - custom data serialisation
  • A commandline/x11 frontend for secure passwort change
    - change password directly in user database secured with ssl
    - check password quality on the fly & enable password aging
    - commandline and fullscreen x11 interface
  • Remote Restore for Legato Networker
    - Enables recover on dataless clients
    - Client (Perl) / Server (C) architecture
    - automatic backup server selection
  • A small and fast security scanner
    - performs standard checks on a regular basis
    - implemented in Perl
  • Second and third level support
    - Solaris and Redhat
    - via phone and on-site
    - root cause resolution
    - performance analysis

- Operating System expertise -
  • Solaris - SunOS 3.5 ... Solaris 10 sparc/x86 (++)
    - nearly all sun hardware
    - ha-cluster / sun-cluster / veritas cluster
    - opensolaris
  • Redhat - 6.2 ... 9 AS2.1 AS5 Fedora sparc/x86 (++)
    - single-/ multi-processor systems (up to 16)
    - clearcase kernel mods
  • Gentoo Linux (++)
    - I use that at home ;-)
  • Ubuntu Linux (++)
    - I use that at home as well ;-)
  • Suse 8.0 9.0 ES8 (+)
    - single-/ multi-processor systems

- Application expertise -
  • sendmail (++)
    - intranet mail reception/delivery
    - optional mail filtering
  • postfix (++)
    - intranet mail reception/delivery
    - optional mail filtering
  • NIS/NIS+/LDAP (++)
    - medium to large scale installations
  • ssh/openssh (++)
    - intranet deployment as replacement for r-cmds
    - knowns_hosts distribution scripts
  • VMware (++)
    - Windows 98/NT/XP & Linux guests
  • hylafax (++)
    - intranet fax/pager solutions
  • apache 1.x/2.x (+)
    - small intranet web servers
  • samba (+)
    - intranet windows connectivity
  • IBM WebSphere MQ (+)
    - message oriented middleware

- Programing expertise -
  • C/C++ (++)
    - utility programs using x11 and ssl
  • Java (++)
    - web forms for account management
  • Shell - sh/bash/csh (++)
    - utility scripts to for various aspects
  • Perl (+)
    - security scanner
    - log scanner / rulebase generator