[myface] Johann E. Klasek

PGP Fingerprint: 45DF 0FA7 CFE8 BCB4 EFEF D1BB E1FD AC68 3715 9641
S/MIME SHA-256-Fingerprint: 90:97:B6:A1:0E:68:DC:0A:20:B7:D1:6F:83:87:07:8C:48:F9:39:FF
S/MIME SHA-256-Fingerprint: F6:50:0D:10:BD:54:3C:6A:FB:AD:B7:1C:11:88:CD:DC:8A:63:71:6C:2C:32:D8:87:E3:E8:87:FE:5E:C6:5A:4E

mobile +43 664 60588 8449
phone +43 1 58801 42049
fax +43 1 58801 942049
TU Wien IT Solutions (TU.it)
formerly known as (ZID - Zentraler Informatik Dienst)
Application Management (Fachbereich INFRA)
previously at
Referat Server (Abteilung KOM)
Vienna University of Technology
Wiedner Hauptstr. 8-10//E020C (Freihaus) - room DC02O06
A-1040 Vienna, Austria


My Wiki

PGP Key (sks-keyservers.net) (Übersicht)
PGP Key (local)
My publications


Neat and handy:

Former member of the Automation Systems Group, Institute of Computer Engineering

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, 8-bit based systems (SBC) and micro controller)

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 TISS mass e-mail distribution (TU Wien only)

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

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

Current Projects:

  • Outgoing Mailrelay renewal.

  • Incoming Mailrelay renewal.

  • 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, 16.03.2018 00:11:24

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