things I’ve learned today

June 13, 2012

1. @ IN CNAME someserver.org

is REALLY not allowed and won’t work anytime soon – despite it being reasonable that it should.

2.  [[ $a == something* ]] – is a nice shorthand in bash for ‘startswith’ for string comparison

3. [[ requires you use && and || instead of -a and -o

4. A way to use the git pre-receive hook to bludgeon certain kinds of checks everytime (zone files anyone?)

5. how much about dnssec seems to be somewhat ‘magical’ and not in a good way.

 

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One Response to “things I’ve learned today”

  1. Jerónimo Bosco Says:

    -a -o are not POSIX, they are bashisms.


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