Adding functionality is not just a matter of adding code.

Quote by Wietse Venema

Topics: Wietse Venema Quotes

For many people my software is something that you install and forget. I like to...

For many people my software is something that you install and forget. I like to...

At the time the Sendmail program had a very poor reputation with respect to security,...

At the time the Sendmail program had a very poor reputation with respect to security,...

As of today, the Postfix mail transport agent has almost 50,000 lines of code, comments...

As of today, the Postfix mail transport agent has almost 50,000 lines of code, comments...

Most of the effort in the software business goes into the maintenance of code that...

Most of the effort in the software business goes into the maintenance of code that...

Qmail out of the box works fine, so people will want to use it regardless...

Qmail out of the box works fine, so people will want to use it regardless...

This will surprise some of your readers, but my primary interest is not with computer...

This will surprise some of your readers, but my primary interest is not with computer...

The Postfix security model is based on keeping software simple and stupid.

The Postfix security model is based on keeping software simple and stupid.

I was going to visit IBM for six months as a visiting scientist. Now, six...

I was going to visit IBM for six months as a visiting scientist. Now, six...

However, writing software without defects is not sufficient. In my experience, it is at least...

However, writing software without defects is not sufficient. In my experience, it is at least...

When I write software, I know that it will fail, either due to my own...

When I write software, I know that it will fail, either due to my own...

Windows favors multi-threading, which means that a service is implemented by one single process.

Windows favors multi-threading, which means that a service is implemented by one single process.

Defect-free software does not exist.

Defect-free software does not exist.

Postfix keeps running even if one Postfix process dies; Windows requires that someone restarts the...

Postfix keeps running even if one Postfix process dies; Windows requires that someone restarts the...

The challenge with Postfix, or with any piece of software, is to update software without...

The challenge with Postfix, or with any piece of software, is to update software without...

Sure, but competition is good for the user.

Sure, but competition is good for the user.

Like all software, Qmail can survive only when it keeps up with changing requirements.

Like all software, Qmail can survive only when it keeps up with changing requirements.

My reply is: the software has no known bugs, therefore it has not been updated.

My reply is: the software has no known bugs, therefore it has not been updated.

Coming back to the topic of computer security, the TCP Wrapper is an example of...

Coming back to the topic of computer security, the TCP Wrapper is an example of...

In a previous life I wrote the software that controlled my physics experiments. That software...

In a previous life I wrote the software that controlled my physics experiments. That software...

Lack of documentation is becoming a problem for acceptance.

Lack of documentation is becoming a problem for acceptance.