I've noticed some strange behaviour on my WBL machine wrt named and sendmail. This mnorning I started to see lots of sendmail errors rejecting mail because the sender address could not be resolved. I then checked my /etc/resolv.conf and found that all the entries " domain xxx.xxx , namserver 127.0.0.1, nameserver my.sec.dns , nameserver some.other.dnsserver" have dissappeared, and only 127.0.0.1 remained.
When fixing that and restarting named, I saw it spawned 4 or 5 named's. Sendmail started to work again, but later, during the day, it again started to moan, this time when users on the server tried to send out, it said sender address does not exist.
I checked my /etc/named.conf, it seems to be ok, and restarting it leaves no errors in the /var/log/messages, only shows all the notifies sent...
Any ideas, thoughts?