Quotes by: Wietse Venema

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Wietse Venema
Wietse Venema speaking at a conference in 2004
Born 1951 (age 65–66)
Jakarta
Nationality Dutch
Fields Computer science
Institutions Thomas J. Watson Research Center
Eindhoven University of Technology
Alma mater University of Groningen

The challenge with Postfix, or with any piece of software, is to update software without introducing problems.
Wietse Venema
Qmail out of the box works fine, so people will want to use it regardless of licensing restrictions, even when the software does not ship with their system software.
Wietse Venema
I was going to visit IBM for six months as a visiting scientist. Now, six months is a lot of time, so I came with a whole list of projects that I might want to work on.
Wietse Venema
When I write software, I know that it will fail, either due to my own mistake, or due to some other cause.
Wietse Venema
Windows favors multi-threading, which means that a service is implemented by one single process.
Wietse Venema
At the time the Sendmail program had a very poor reputation with respect to security, with four root vulnerabilities per year for two successive years.
Wietse Venema
Most of the effort in the software business goes into the maintenance of code that already exists.
Wietse Venema
As of today, the Postfix mail transport agent has almost 50,000 lines of code, comments not included.
Wietse Venema
My reply is: the software has no known bugs, therefore it has not been updated.
Wietse Venema
This will surprise some of your readers, but my primary interest is not with computer security. I am primarily interested in writing software that works as intended.
Wietse Venema
However, writing software without defects is not sufficient. In my experience, it is at least as difficult to write software that is safe - that is, software that behaves reasonably under adverse conditions.
Wietse Venema
Writing software that's safe even in the presence of bugs makes the challenge even more interesting.
Wietse Venema
Postfix keeps running even if one Postfix process dies; Windows requires that someone restarts the service.
Wietse Venema
In a previous life I wrote the software that controlled my physics experiments. That software had to deal with all kinds of possible failures in equipment. That is probably where I learned to rely on multiple safety nets inside and around my systems.
Wietse Venema
Like all software, Qmail can survive only when it keeps up with changing requirements.
Wietse Venema
For many people my software is something that you install and forget. I like to keep it that way.
Wietse Venema
Coming back to the topic of computer security, the TCP Wrapper is an example of such a safety net. I wrote it when my systems were under attack by someone who appeared to walk through walls.
Wietse Venema
I want to avoid locking people into solutions that work only with Postfix. People should have a choice in what software they want to use with Postfix, be it anti-virus or otherwise.
Wietse Venema
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