How to get all IP Addresses for a host from DNS server?

[atulnandan]

I have a program for which the purpose is to find all IP addresses associated with a host in a particular domain. For example, let's say that i want to find all IP addresses associated with "rediff.com". If i do "nslookup" on rediff.com, i get different set of IP addresses at different point of time as follows:


atul> nslookup rediff.com
Server: ns.otherdnserver.org
Address: 10.12.35.8

Non-authoritative answer:
Name: rediff.com
Address: 64.212.198.153
Name: rediff.com
Address: 64.212.198.144



atul> nslookup rediff.com
Server: ns.otherdnserver.org
Address: 10.12.35.8

Non-authoritative answer:
Name: rediff.com
Address: 168.143.241.10
Name: rediff.com
Address: 168.143.241.90


Same behaviour is observed with gethostbyname() api utility which my program is calling and i am getting different subset of IP addresses at different point of time.

Is there a way where i can invoke gethostbyname() with a hostname with certain specific option and it returns me all IP addresses associated with it in one invocation, not in multiple invocations as mentioned in the above example?

 

[scsi]

Do you have a directadmin server?

 

[SeLLeRoNe]

well nslookup is windows command like dig for linux.

I suppose you are on the wrong forum man.

This is just for Directadmin related issue.

Regards

 

[nobaloney]

The nslookup command works on linux as well.

That said, I agree that this isn't the right forum for debugging scripts which have nothing to do with DirectAdmin.

That all said, the short answer is:

No; you can't find ip#s which the nameservers aren't telling you.

Jeff