bind: dns_master_load: file format mismatch

Question

I have set a slave DNS server for myzone.info domain. After reloading bind 9.9.5 on Ubuntu, syslog gives the following messages:

Jul 13 17:12:14 dns2 named[18599]: dns_master_load: file format mismatch Jul 13 17:12:14 dns2 named[18599]: zone myzone.info/IN: loading from master file /etc/bind/db.myzone.info failed: not implemented 

Please note our bind data file /etc/bind/db.myzone.info is as follows:

$TTL 8400 IN SOA ns1.myzone.info. root.myzone.info. ( 2016071149 1200 600 1209600 3600 ) IN NS ns1.myzone.info. IN NS ns2.myzone.info. ns1 IN A 154.34.25.22 ns2 IN A 98.75.156.109 

Please note our named.conf file is as follows:

zone "myzone.info" { type slave; file "/etc/bind/db.myzone.info"; masters { 154.34.25.22; }; }; 

Does anyone know what am I missing?

Answer 1

the problem is that you are probably migrating from the old bind and after restart the file is renamed to db-#hash#.

The solution is to add masterfile-format text; into your named.conf so it will look like

 zone "myzone.info" { type slave; masterfile-format text; file "/etc/bind/db.myzone.info"; masters { 154.34.25.22; }; }; 

and recreate the file db.myzone.info again and restart bind.