Linux

can someone point me in the right direction im trying to setup a Slave dns server

this is my named.conf file

Code:

zone "website1.org" {
type slave;
file"mydb-for-website1-org";
notify NO;
};

and this is my

var/named/mydb-for-website1-org

Code:

$TTL    3D
@       IN      SOA     website1.website1.org.     website1.website1.org.(
                        1       ; Serial
                        8H      ; Refresh
                        2H      ; Retry
                        1W      ; Expire
                        1D      ; Negative Cache TTL
);
@       IN      NS      website1.website1.org.
vm01    IN      A       192.168.100.2
vm02    IN      A       192.168.100.3
vm03    IN      A       192.168.100.4

but then when i try starting dns i get an error

when i do systemctl status named.service

(code=exited, status=2/INVALIDARGUMENT)

You do not define db files for a slave, they get created from the master. But somehow the slave needs to know about the master, often times in the zone config itself:

Code:

zone "website1.org" {
type slave;
masters { AAA.BBB.CCC.DDD; };
file "mydb-for-website1-org";
notify NO;
};

I did notice lack of space on file between file and the filename... the masters line identifies the master by ... well in this case IP address to pull the zone info from. Again, you don't need the db entries... however, you need to be careful about the file argument, make sure it's going to a place where named can write to.. often times, named gets put into a change root situation... so just keep that in mind. For example, on many Linux systems, you might use "slave/mydb-for-website1-org" where that path is relative to the change root for bind which might be at /var/lib/named (again, just an example... every system can be different... you just need to make sure the slave file is somewhere writable by the slave named process owner id.