Ralf Hildebrandt

Ralf Hildebrandt
Ralf.Hildebrandt@computerbeschimpfung.de
Tel: (0)7000 POSTFIX (kostenpflichtig; 0,124 Euro / Minute aus dem Festnetz der Deutschen Telekom)

Some facts about me...

postmaster@python.org
Spezialist für Computerbeschimpfung
Winner of the Software Engineering Award 2001 of the Ernst Denert-Stiftung für Software-Engineering
Dipl.-Inform. -- Alumnus of Computer Science at the Technical University of Braunschweig.
formerly working at innominate.com
formerly working for T-Systems Business Services GmbH as a "Manager Technik" at charite.de
one of the German Postfix gurus

Publications

de.postfix.org - German Postfix Website
Postfix - Einrichtung, Betrieb und Wartung (2. aktualisierte und erweiterte Auflage) (Übersetzung der Englischen Ausgabe "The Book of Postfix").
The Book of Postfix
Check the webpage here.
Die Post ist da
Grundlagen der Sendmail-Konfiguration (c't 9/99, Seite 210)
snort und nmap -- zwei Seiten derselben Münze (Linux Magazin 12/2000, Seite 102)
Minimizing Failure-Inducing Input
Given some test case, a program fails. Which part of the test case is responsible for the particular failure? We show how our test case minimization algorithm generalizes and simplifies some failing input to a minimal test case that produces the failure.
Appeared in Proc. ACM SIGSOFT International Symposium on Software Testing and Analysis (ISSTA 2000), Portland, Oregon, August 2000 (slides)
Postfix als sicheres SMTP Gateway -- 14. DNUG Jahrestagung 2001 Potsdam (slides)
Personal Firewalls -- Ein Überblick -- CAST Praxistag 2002 (slides)
Spam -- Was kann man als Einrichtung im DFN dagegen tun? -- DFN Betriebstagung 2002 (slides)
Proofreader for Das Postfix Buch. Sichere Mailserver mit Linux
Proofreader for Die Profilösung - Der eigene Mail-Server mit Linux (c't 20/2002, Seite 130)
Co-author of Tod dem Spam - SpamAssassin filtert auf dem Server (c't 22/02, Seite 168)
Co-author of Courier-IMAP -- Schneller und sicherer Mailzugriff für mobile User (c't 16/03)
Postfix for spamprotection -- Linuxforum 2004 (slides)
- pictures
maps & policy delegation -- Linuxforum 2005 (slides)
maps und policy Delegierung -- Mailserverkonferenz Magdeburg 2005 (slides)
- pictures
Nemesis - Schlund+Partner entwickelt sein eigenes Mailsystem (Linux-Magazin, 08/05)
Postfix: Status Quo -- current development -- an overview -- Linuxforum 2006 (slides)
Aktuelle Entwicklungstrends bei Postfix, Antispam-Maßnahmen durch policy-Delegation -- GUUG Frühjahrsgespräch 2006 (slides)
Workshop: Integration von Postfix und externen Programmen -- GUUG Frühjahrsgespräch 2006 (abstract)
44 Servergebote -- Linux-Magazin, 12/06 (toc)
Reviewer for Pluggable Authentication Modules: The Definitive Guide to PAM for Linux SysAdmins and C Developers
Konferenz für die Admin-Praxis -- Linux-Magazin, 02/07 (toc)
Deathmatch -- Linuxforum 2007, Copenhagen (slides)
Änderungen von Postfix 1.1 bis 2.4 (slides)
Multiple Postfix Instanzen -- 3. Mailserver-Konferenz 2007, Berlin (slides)
Migration von courier zu dovecot im harten Praxiseinsatz -- 3. Mailserver-Konferenz 2007, Berlin (slides | audio download )
LISA '07 -- Patrick and I were there:
- (T4) Postfix Configuration and Administration
- (W3) Postfix Anti-Spam Workshop
- (W6) Cyrus SASL Authentication Workshop
Sysadmins in Dallas
Postfix einrichten und absichern -- Linux-Magazin Sonderheft "Profi-Server" 01/08
ClamAV gegen Viren und Spam -- Linux-Magazin Technical Review 07/2008
Controlling mail message flow by content analysis -- Open Source Days, Copenhagen 10/2008 (slides)
Dovecot-2.0 - What's new? -- Open Source Days, Copenhagen 03/2011 (slides)
Postfix 2.8 - was ist neu? -- Linux Tag, Berlin 05/2011 (slides)

Arschkrebs

What is Arschkrebs (buttcancer)?

You know this, don't you: You're at a party, and once the guests notice that you're a doctor, they start talking about their illnesses and want your diagnosis.
For free.
A friend of mine was so annoyed by this that his party-diagnosis is always "Arschkrebs -- you should see a Doctor". And never forget: I read it on the Internet, so it must be true!

Unix Stuff

chroot'ing bind-8.x and bind-9.x on HP-UX 10.x
Explanation on how to chroot the nameserver on HP-UX.
Postfix
Patches to implement the UI portion of sync_members for mailman
openvpngraph uses rrdtool to graph the number of users logged in, login failures, multiple logins of the same person and the combined bandwidth usage of all users

© by Ralf Hildebrandt
This document contains links to external information sources that I do neither monitor nor control. I explicitly disclaim any liabilities in respect to external references.
You are getting this document without any guarantees. Any methods shown above are meant as demonstration and may be wrong in some place. You may damage your system if you try to follow my hints and instructions. You do this at your own risk!

This file was last modified 27. Dec 2017 by root