[myface] Johann E. Klasek
Dipl.-Ing.

PGP Fingerprint: 45DF 0FA7 CFE8 BCB4 EFEF D1BB E1FD AC68 3715 9641

mobile +43 664 60588 8449
phone +43 1 58801 42049
fax +43 1 58801 942049
Information Technology Services (Zentraler Informatikdienst - ZID)
Communications group
(Abteilung Kommunikation)
Vienna University of Technology
Wiedner Hauptstr. 8-10//E020C (Freihaus) - room DC02O06-1
A-1040 Vienna, Austria

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Neat and handy:

Former member of the Institute of (computer-aided) Automation, working group Automatisierungssysteme

General areas of interests:

  • Unix System Management (Solaris, Linux, Apollo DomainOS, Security, Networkprogramming, C-, Shell-, Perl-Programming)
  • Security issues (Unix, TCP/IP, operating systems in general)
  • Mailsoftware (especially Sendmail, Amavis, Milter-Greylist)
  • USENET News Management
  • Security (Operating Systems, E-Mail, Tunneling, Public Key Systems)
  • Programming Languages (C, C++, Perl, various shell script dialects, Forth, Assembler)
  • Web-Design (Web-Server-Management, CGI-Programming using Shell- and Perl-Scripts)
  • Embedded Systems (pSOS+, RT/Embedded Linux)

Responsibility areas:

Following activities are part of the communication services at the Vienna University of Technology, serving the whole campus.
  • mail router/mail bastion server management with following features
    • Mail-Aliases/Forwarding (@tuwien.ac.at, @student.tuwien.ac.at, @alumni.tuwien.ac.at, @zid.tuwien.ac.at)
    • central Spam/UCE flagging
    • central virus protection
    • Anti-spamming/Anti-relaying
    • Virtual mail domains and mail aliases handling
    • Mail routing, forwarding/blocking
    • Other postmaster issues (abuse handling, server reachablility, mail processing)


  • interim Webspace management (info service)
    • User and account management (SSH access, filesystem quotas, password)
    • Web-Content (URL setup/deletion, Links in case of emergency)


  • PGP-Key Server management


  • TISS: consulting for
    • LDAP address book
    • Finger query interface
    • Mailrouting <-> TISS Synchronisation


Current Projects:

  • Outgoing Mailrelay renewal.

  • Viruschecking Cluster node replacement.

  • Software maintainance and development participation:
    • SRS socketmap daemon (Perl)
    • Miltrassassin sendmail milter
    • Milter-Greylist sendmail milter


Old Projects:


Hints, complaints, threats and other things like that can be entered into my response form (or use the german styled response form).

JK, 28.12.2016 18:09:39

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