> this is a blade that cuts both ways, and the key thing to do is
> to ensure you have good testing infrastructure in place to check
that
> things will work before you deploy to production. (The other way to
> say that, of course, is "Linux is only free if your time is worth
> nothing." Substitute your favourite free software for "Linux", of
> course. ;-) )
It doesn't have to be free software to cut that way. I've actually
found the free software to waste less of my time. If you depend on
your systems, though, you should never deploy any change, no matter
how innocuous it seems, without testing.
-Kevin
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