Terry Venables's Quotes
Born: 1943-01-06
Profession: Athlete
Nation: English
Biography of Terry Venables
If history is going to repeat itself I should think we can expect the same thing again.
Tags: Again, Expect, HistoryDefect-free software does not exist.
Tags: Exist, Software, TechnologyLack of documentation is becoming a problem for acceptance.
Tags: Acceptance, Lack, ProblemAs of today, the Postfix mail transport agent has almost 50,000 lines of code, comments not included.
Tags: Almost, Lines, TodayFor many people my software is something that you install and forget. I like to keep it that way.
Tags: Forget, Keep, SoftwareLike all software, Qmail can survive only when it keeps up with changing requirements.
Tags: Changing, Software, SurviveMost of the effort in the software business goes into the maintenance of code that already exists.
Tags: Business, Effort, GoesMy reply is: the software has no known bugs, therefore it has not been updated.
Tags: Known, Reply, SoftwarePostfix keeps running even if one Postfix process dies; Windows requires that someone restarts the service.
Tags: Process, Service, SomeoneThe challenge with Postfix, or with any piece of software, is to update software without introducing problems.
Tags: Challenge, Piece, ProblemsThe Postfix security model is based on keeping software simple and stupid.
Tags: Security, Simple, StupidWhen I write software, I know that it will fail, either due to my own mistake, or due to some other cause.
Tags: Computers, Fail, WriteWindows favors multi-threading, which means that a service is implemented by one single process.
Tags: Means, Service, SingleVisit partners pages
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Writing software that's safe even in the presence of bugs makes the challenge even more interesting.
Tags: Challenge, Makes, WritingAt the time the Sendmail program had a very poor reputation with respect to security, with four root vulnerabilities per year for two successive years.
Tags: Poor, Respect, TimeComing 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.
Tags: Security, Someone, WalkHowever, 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.
Tags: Difficult, Experience, WritingI don't expect an overnight change of all desktops to what the US Military used to call B3 level security. And even that would not stop users from shooting themselves into the foot.
Tags: Change, Themselves, UsedI 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.
Tags: Avoid, Choice, WorkI 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.
Tags: Time, Whole, WorkIn 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.
Tags: Learned, Life, PossibleQmail 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.
Tags: Fine, System, WorksThis 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.
Tags: Interested, Security, Writing