How to use gh:

Four groups of digits joined by three dots entered in the input box above are interpreted as an IP address. If such an IP address is followed by a positive number separated by space, this number of consecutive IP addresses will be resolved. Every other input is automatically treated as a host or domain name.

When a host/domain name is submitted, this translator first finds the respective IP address, and possibly some related addresses and all the available aliases. Then the translator finds the official host/domain names for each of the entered or obtained addresses and further existing aliases. In the end, if the Whois YES button above is checked (or the -w flag specified at the command prompt), locally installed BW whois is called for all host/domain names found (or entered). If it fails to find anything, try the links above.

Command line use (examples at the end of this page): 
      Usage: gh [-w] host/domain_name
             gh [-w] IP_address
             gh initial_IP_address  number_of_IP_addresses
       -w : get also the whois information

What can be found using this translator:

All the following results were found mostly 20+ years ago:

Sometimes the translation between an IP address and a host name is successful in one direction only. Try for example the equivalent couple 'mail.ca' and 139.142.118.226. The same situation exists for 'uno.org' or 'uno.com'. Combining information from subsequent searches (doing a block search of the vicinity of an resolved IP address) can help. For example, for 'www.mail.cz', another name 'k0r3.reflektor.cz' was returned (only once). Then it was easy to find out that 'www.mail.cz', 'k0r3.reflektor.cz' and 'mail.cz' have the same IP address.

Even 'org.org' is a valid domain name, and it has at least one alias (it used to have two). Two different IP addresses can point to the same name.
There are various names ... Try to submit the IP block 'gh 195.244.241.122 7'.

Example 1: Output generated by gh 199.171.142.150:

Input: IP address 199.171.142.150
 The official host name is: eagate.earthsat.com
 Aliases: eagate.geocover.com
        eagate.landcover.com
        eagate.californiah2o.com
        eagate.energyweather.com
        eagate.energyweather.net
        eagate.cah2o.com
        eagate.cropcast.com
        eagate.cropview.com

Example 2: Output generated by gh surf.pangea.ca:

Input: Host/domain name 'surf.pangea.ca'
 IP address: 204.112.101.109
 The official host name is: imap.pangea.ca
 Aliases: surf.pangea.ca
	qmail.pangea.ca

Example 3: Output generated by gh inside.tm:

Input: Host/domain name 'inside.tm'
 IP address: 195.244.235.254
 The official host name is: 123.org

Last updated April 4, 2005