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Full Discussion: URL form ip
Operating Systems Linux URL form ip Post 68973 by kduffin on Saturday 9th of April 2005 08:39:34 AM
Old 04-09-2005
You can get a PTR record by using dig -x <IP address>. For example:

$ dig -x 216.109.117.206

; <<>> DiG 8.3 <<>> -x
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 405
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 5, ADDITIONAL: 5
;; QUERY SECTION:
;; 206.117.109.216.in-addr.arpa, type = ANY, class = IN

;; ANSWER SECTION:
206.117.109.216.in-addr.arpa. 20M IN PTR p19.www.dcn.yahoo.com.

;; AUTHORITY SECTION:
117.109.216.in-addr.arpa. 2D IN NS ns5.yahoo.com.
117.109.216.in-addr.arpa. 2D IN NS ns1.yahoo.com.
117.109.216.in-addr.arpa. 2D IN NS ns2.yahoo.com.
117.109.216.in-addr.arpa. 2D IN NS ns3.yahoo.com.
117.109.216.in-addr.arpa. 2D IN NS ns4.yahoo.com.

;; ADDITIONAL SECTION:
ns1.yahoo.com. 14h58m50s IN A 66.218.71.63
ns2.yahoo.com. 14h58m50s IN A 66.163.169.170
ns3.yahoo.com. 14h58m50s IN A 217.12.4.104
ns4.yahoo.com. 14h58m50s IN A 63.250.206.138
ns5.yahoo.com. 14h58m50s IN A 216.109.116.17

;; Total query time: 66 msec
;; FROM: smbigip1.str.nexteldata.net to SERVER: 167.20.228.102
;; WHEN: Sat Apr 9 08:29:04 2005
;; MSG SIZE sent: 46 rcvd: 251

Or you can cut out just the hostname as:

$ dig -x 216.109.117.206 | grep PTR | cut -f7 -d" "
p19.www.dcn.yahoo.com.

Cheers,

Keith
 

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httppower(8)							     powerman							      httppower(8)

NAME
httppower - communicate with HTTP based power distribution units SYNOPSIS
httppower [--url URL] DESCRIPTION
httppower is a helper program for powerman which enables it to communicate with HTTP based power distribution units. It is run interac- tively by the powerman daemon. OPTIONS
-u, --url URL Set the base URL. INTERACTIVE COMMANDS
The following commands are accepted at the httppower> prompt: auth user:pass Authenticate to the base URL with specified user and password, using ``basic'' HTTP authentication which sends the user and password over the network in plain text. seturl URL Set the base URL. Overrides the command line option. get [URL-suffix] Send an HTTP GET to the base URL with the optional URL-suffix appended. post [URL-suffix] key=val[&key=val]... Send an HTTP POST to the base URL with the optional URL-suffix appended, and key-value pairs as argument. FILES
/usr/sbin/httppower /etc/powerman/powerman.conf ORIGIN
PowerMan was originally developed by Andrew Uselton on LLNL's Linux clusters. This software is open source and distributed under the terms of the GNU GPL. SEE ALSO
powerman(1), powermand(8), httppower(8), plmpower(8), vpcd(8), powerman.conf(5), powerman.dev(5), powerman-devices(7). http://sourceforge.net/projects/powerman powerman-2.3.5 2009-02-09 httppower(8)

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