If 'host' returns not found...


 
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# 1  
Old 08-31-2010
If 'host' returns not found...

Code:
$ host 80.159.xx.xxx
Host 222.79.xxx.xxx.in-addr.arpa not found: 3(NXDOMAIN)

What does this mean? The person currently using the IP address in IRC is chatting right now, but how come if he's online it doesn't return any information?
# 2  
Old 09-01-2010
Assuming your resolver is working correctly it means there is not a revere dns record(PTR) configured for this IP address. Not an error as it's not required.
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