Settle an arguement: If I PING a number of domain names and...

[Jimmyjammer]

And they all resolve to the same IP address then does that mean:

a: They're the same server?
b: They're on the same network?


I say they're the same machine, but my friend says they could just be on the same 'network'. He won't expand on what he means by network!

Anyone?

 

[mrCide]

could be either..

firewall/NAT

 

[FoBoT]

a single ip can host multiple domains (virtual hosts)

but domains can also be redirected, so a ping isn't determinate

 

[StageLeft]

I guess they could be on same network because a bunch of computers on the network all going through same computer for the IP address.

 

[gooneygoon]

Can be either on same machine or network.

I can't recall, but are you sure that different domain names to same IP?

What domain names are they, and you should get it via NSLOOKUP.

 

[Jimmyjammer]

Originally posted by: FoBoT
a single ip can host multiple domains (virtual hosts)

but domains can also be redirected, so a ping isn't determinate

Any way to determine if these domain names are all on the same server?

 

[Jimmyjammer]

Originally posted by: gooneygoon
Can be either on same machine or network.

I can't recall, but are you sure that different domain names to same IP?

What domain names are they, and you should get it via NSLOOKUP.

Did that NSLOOKUP thing and they all resolve to same IP, same DNS, same Mail handler. Is that concrete proof or could my friend still be right?

 

[FoBoT]

Originally posted by: Jimmyjammer


Any way to determine if these domain names are all on the same server?

not that i can think of, some smart guy may have an idea

there might be a way to get the server program itself to give an identifying response, although if its properly secured, i would think that would be disabled

i dunno
*edit**
this tool from grc (shudder!! :Q ) might give enough info to say if its the same box or not

um, yeah, that tool should get you enough info, i just ran it on my home server, it returned quite a bit of info, if two queries exactly match, i would bet they are on the same physical box with the same server program (ie virtual hosts on the same server)