DNS question

I have up to 6 ip addresses available on my root server. Is it possible to have one of these ips configured as my slave dns on the same box as the primary? If so, is there a guide I can follow anywhere?

 

No, this doesn't work because you can have just one DNS server installed on your system, and in that one DNS server you can't specify one and the same zone as master and slave.
Even if it was possible, I don't see the point. If your server crahses, both the master and slave are gone. But the purpose of a slave server is to have a fallback if the primary isn't available.

 

on Plesk servers is this working

would be nice if this is also posible on ispconfig so I can easy move from Plesk to ispconfig

 

I doubt that (although I don't know Plesk). Maybe the interface tells you this, but did you check what happens behind the scenes?

 

Code:

named.conf

zone "domain.com" {
        type master;
        file "domain.com";
        allow-transfer {
                <ip ns1>;
                <ip ns2>;
                common-allow-transfer;
        };
};

Code:

/var/named/run-root/var/domain.com

$TTL    86400

@       IN      SOA     ns1.domain.com. postmaster.domain.com (
                        1217105890      ; Serial
                        10800   ; Refresh
                        3600    ; Retry
                        604800  ; Expire
                        86400 ) ; Minimum

domain.com.             IN NS   ns1.domain.com.
domain.com.             IN NS   ns2.domain.com.
domain.com.             IN A    <ip>
ns1.domain.com.                 IN A    <ip1>
ns2.domain.com.                 IN A    <ip2>

 

This is a master only, but not master and slave at the same time.

 

here is the tutorial to install this

http://www2.flexservers.com/documents/plesk/plesk_ns.pdf

(sorry it's in dutch but of you have a look at the pics you can see what they do)