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- Newsgroups: comp.sys.sgi.admin
- Path: sparky!uunet!europa.asd.contel.com!darwin.sura.net!sgiblab!sgigate!sgi!xingping.esd.sgi.com!arc
- From: arc@xingping.esd.sgi.com (Andrew Cherenson)
- Subject: Re: system names from IP
- Message-ID: <tk0qf9s@sgi.sgi.com>
- Sender: arc@xingping.esd.sgi.com
- Organization: Silicon Graphics, Inc. Mountain View, CA
- Date: Tue, 15 Dec 1992 02:17:01 GMT
- Lines: 38
-
- In article <JACKR.92Dec14175813@dblues.wpd.sgi.com> jackr@wpd.sgi.com (John "Jack" Repenning) writes:
- >In article <1992Dec14.172453.26933@den.mmc.com> beck@enterprise.den.mmc.com (Fred R. Beck) writes:
- >
- > Has anyone out there ever tried to resolve a system name
- > from an IP number?
- >
- >It turns out to be even easier than one other responder suggests.
- >I've never seen documentation that admits this (so it's probably
- >totally unofficial), but every version of nslookup I've ever tried
- >will accept:
- >
- > nslookup <<EOF
- > set q=ptr
- > $1
- > EOF
- >
- >That is, you don't need the shell-game to reverse the address and add
- >"in-addr.arpa".
-
- nslookup takes command-line options. For example,
-
- % nslookup -q=ptr 192.48.153.1
- Server: sgi
- Address: 0.0.0.0
-
- 1.153.48.192.in-addr.arpa name = SGI.COM
-
- When using nslookup on IRIX and other systems using BIND 4.8.3, nslookup
- treates IP addresses specially when the query type is A (the default).
- For example:
-
- % nslookup 192.48.153.1
- Server: sgi
- Address: 0.0.0.0
-
- Name: SGI.COM
- Address: 192.48.153.1
-
-