Hello there, great site again and very good work [img]images/smiles/icon_smile.gif
i have some questions about reverse dns lookup. how does the whole reverse lookup system works? suppose i have some class c networks, how can i define which dns server will lookup for each one ( reverse ).
and one last question that is troubling me is this : let's suppose we have a class c network ( 255 ips ). and i have 2 nameservers. how can i have one of them reverse lookup some ips and the the other nameserver the rest of them ?
I am going to assume you are working in windows... to define which DNS server you will be using look under your 'Local Area Connection' > 'Internet Protocol (TCP/IP)' You will see Obtain DNS server address automatically, which generally means if you have a web proxy it will use the proxy specified by that.
To define a custom proxy change to 'Use The following DNS server addresses:' and enter a Primary, then a secondary (if you have it), the secondary is the backup if your first one goes down.
To do what you said (Have two DNS with separate records) you could split the computers on your network up and specify different DNS servers or have the primary DNS server point to the secondary DNS server to get address X.
1. Primary give me
2. Ok you can find it by going and looking at another DNS server >> 10.0.0.2
3. Secondary DNS can I have
4. Yes 10.0.0.100
Thank you very much wrath_child, indeed it helped and thank you Manip though the question was more relevant to what wrath_child answered.
I have this last question. Suppose i have the network 192.168.0/24 and 192.168.0.1 is my primary dns server. I want for some particular IPs belonging to this range ( say for example 5 IPs ) do their reverse lookup by another nameserver ( no subnetting ).
for IPs : 192.168.0.0-249 i want my pri dns to do the reverse resolving
and for the IPs : 192.168.0.250-254 to have another dns do my reverse resolving ( the second dns is still in this network )
Is that possible and if so, how?