host IP

closet geek · 07-31-2006, 07:58 PM

Will running:

Code:

host IP

work if the IP in question is linked to a server which is turned off? Does the host command check with the server for its hostname or does it check with ARIN?

cg

osor · 07-31-2006, 10:51 PM

Host uses your default system resolver to do a reverse-DNS lookup. This means it queries the nameserver(s) in /etc/resolv.conf and/or your /etc/hosts file(s). It has no (direct) connection to whether a system with the given IP actually exists (but due to the nature of DNS, it should be accurate). If you want to use the ARIN (or some other) database, use whois instead of host.

closet geek · 08-01-2006, 04:42 AM

Thanks - as it uses that I can see no problem.

cg