I was adding a new slave DNS server the other day on bind 9.3 and I was getting this error “refused notify from non-master”. It seems that if you are using bind 9.3 it tries to send a notify to itself even if it is a slave. In the options section of named.conf you need to add an allow-notify for it’s own IP. Substitute 192.168.0.1 for your server’s IP.
options {
//otherstuff
allow-notify {192.168.0.1;};
};
thank you… couldn’t figure out why it kept complaining, but was working. One less thing to worry about now.
NP Mike, thanks for the comment…heh
thanks for solution, man 🙂
NP 🙂
Thank you, been annoyed by this for too long.
Glad to help sir.
Instead of allowing the slave to notify itself using allow-notify, you can simply disable notifications on the slave using ‘notify no’. Then the slave won’t even send out any notfications even to itself; however, according to my own testing the slave will still accept notifications from its master with notify no in its named.conf.
Thanks for the tip Dave!
Nice one thanks! Saved me some hassle!
NP =)
“When a slave receives a NOTIFY request for a zone from one of its configured master name servers, it responds with a NOTIFY response. The response tells the master that the slave received the NOTIFY request, so that it can stop sending it NOTIFY messages for the zone. Then the slave proceeds just as if the refresh timer had expired: it queries the master server for the SOA record for the zone that the master claimed has changed. If the serial number is higher, the slave transfers the zone.”
taken from: http://bioinfo2.ugr.es/OReillyReferenceLibrary/networking/dnsbind/ch10_02.htm
So then, if you disable notify: ‘notify no’, your master is not notified. According this, the notify statement means if send notify responses (i.e. if slave reply or ack the master notification). If you read the reference this is useful to prevent DOS attacks.
In my oppinion the original post solution seems better 🙂
Salut!
Thanks for the heads up Gerard. I prevent spoofing, so in my case this is a non issue 🙂 Definitely good to know, though. As GI Joe says, knowing is half the battle…the other half is shooting guns and blowing stuff up.
You’re rock man,
this is very useful for my slave bind.
Just info,
I thing not only BIND 9.3 , I use BIND 9.7 is got same message above.
Your solution is great.
thank Greg.
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