How to incremental serial number in dns zone?

[vanessafan]

after a dns zone do you need to update the serial number? and if so how do you do that?

[astopy]

If you're editing it in WHM, it'll increment the serial number automatically. If you're editing it by hand for some reason, just increment the serial number by hand as well.

[vanessafan]

for a given file domain.com.db how do you do this?
maybe via the command line?
i need to do it for a couple hundred domains

[astopy]

The format of the zone files should be predictable, so you should be able to write a script to edit them all. There isn't an easy, ready-made way of doing it as far as I know.

The other way would be to edit each file with vim, emacs, nano, whatever. That would obviously be pretty time consuming though.

[cPanelMichael]

Hello

i need to do it for a couple hundred domains

This could be achieved using a Perl command like the one posted below. Please notice that /var/named is backed up before running this command so it can be restored if any errors occur:

# cp -a /var/named /var/named-backup 
# find /var/named/*.db -mtime -1 -exec perl -pi -e 'if (/^\s+(\d{10})\s+;\s+serial/i) { my $i = $1+1; s/$1/$i/;}' '{}' \;

This will increment the serial for all DNS zones within the /var/named directory.

Thank you.