How to do Bulk Update on DNS zone files serial Number?

[lijeshk]

In case all DNS zone files on the server need to be refreshed by altering the serial number, this can be done as follows:

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for i in `ls /var/named/*.db` ; do cat $i | sed ‘s/[0-9]\{10\}/2013110301/g’ > $i.new; mv -f $i.new $i; chown named.named $i ;done

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This will set serial for DNS zone files to 2013110301. Please reload BIND after wards as follows:

[root@System ~]# rndc reload

server reload successful

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