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What is the hostname?

I have an IP address (sorry I cannot give it out) which I need to resolve to a hostname.  'nslookup' cannot resolve the IP address.

I ran a whois which gave me an IP range for the owner.  It does not tell me the domain name for the set of IP range. Was thinking about dumping out all available hostname for that domain but not sure if this will work.


What can I do?

Thanks
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jkit001
Asked:
jkit001
1 Solution
 
pony10usCommented:
If it doesn't have a DNS entry then NSLookup will not resolve it. Can you connect to it using the IP address in an RDP session?
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jkit001Author Commented:
I cannot connect with RDP.  I can only connect with ftp to this ip address but do not have a login. I do not see any helpful info from the ftp output.

There may be an entry in DNS.  Forward lookup, from a hostname to ip, may work in nslookup but reverse lookup may not be setup.
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Dave BaldwinFixer of ProblemsCommented:
Not all IP addresses have domain names.  I use ID Serve https://www.grc.com/id/idserve.htm from Gibson Research to do reverse lookups.
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CITG_CarlCommented:
Just to clarify we are talking about external DNS rather than internal?
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jkit001Author Commented:
It is external DNS.
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jkit001Author Commented:
Good resource, but unfortunately it did not help me.
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