It is very common for beginners to make mistakes when editing BIND
configuration files or run in to initial difficulties using
named. Be sure to avoid the following problems:
Make sure you increment the serial number when editing a
zone file.
If the serial number is not incremented, your master nameserver
may have the correct, new information, but your slave nameservers
will never be notified of the change or attempt to refresh their
data of that zone.
Be careful to use ellipses and semi-colons correctly in the
/etc/named.conf file.
An omitted semi-colon or unclosed ellipse section will cause
named to refuse to start.
Remember to place dots
(.) in zone files after all FQDNs
and omit them on hostnames.
The dot denotes a fully qualified domain name. If the
dot is omitted, then named will place the name of
the zone or the $ORIGIN value after the name to
complete it.
If you are having problems with your firewall blocking
connections from your named program to other
nameservers, you may need to edit its configuration file.
By default, BIND version 9 uses random ports above 1024 to query
other nameservers. Some firewalls, however, expect all nameservers
to communicate using only port 53. You can force this behavior by
adding the following line to an
options statement in
/etc/named.conf:
query-source address * port 53; |
