I ran into a problem the other day on a testing server. Apache was
stopped on the server hosting vegaDNS, and well I lost DNS to the whole
test bed for a little bit :). Easy enough to fix in the situation,
restart apache and all is well, but losing dns for a bit can blow if you
have a good number of users. I made some changes to update-data.sh to
avoid this, kind of dirty. I was wondering if anyone else had a better
idea, or anything I overlooked to avoid this particular problem. This
solution will keep the original DNS for any servers that are
unavailable.
for VD in $VEGADNS ; do
A=$[$A+1]
if wget -q -O "$TINYDNSDIR/root/data.srv-$A.tmp" $VD?state=get_data;
then
mv $TINYDNSDIR/root/data.srv-$A.tmp $TINYDNSDIR/root/data.srv-$A
fi
cat "$TINYDNSDIR/root/data.srv-$A" >>$TINYDNSDIR/root/data
done
.darrel.
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