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"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."
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"The mind of man, moreover, works with equal strangeness upon the body of time. An hour, once it lodges in the queer element of the human spirit, may be stretched to fifty or a hundred times its clock length; on the other hand, an hour may be accurately represented on the timepiece of the mind by one second."

"You may need an additional money to make things happen and have it, but you can have an additional time anywhere. Value your time; as you wait, it is passing!"

"Worrying about what happened on Monday, or, what might happen on Wednesday, is at the expense of one's Tuesday."

"Time interval is a strange and contradictory matter in the mind. It would be reasonable to suppose that a routine time or an eventless time would seem interminable. It should be so, but it is not. It is the dull eventless times that have no duration whatever. A time splashed with interest, wounded with tragedy, crevassed with joy - that's the time that seems long in the memory. And this is right when you think about it. Eventlessness has no posts to drape duration on. From nothing to nothing is no time at all."
Explore more quotes by 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."


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


"As of today, the Postfix mail transport agent has almost 50,000 lines of code, comments not included."


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


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


"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."


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