June 2003
Beginner to intermediate
944 pages
43h 1m
English
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Name
whois
Synopsis
whois[options] query[@server[:port]]
fwhois [options] query[@server[:port]]Search a whois database for a domain name, IP address, or NIC name. The information returned varies, but usually contains administrative and technical contacts so that you can find a person to handle problems at that domain. By default, the command returns information on .com, .net, and .edu domains, but other hosts can be queried for other domains using host or the -h option.
Options
- --
Indicates the end of options. A subsequent string that begins with a hyphen on the command line is taken as a query string.
- -h server
Query the whois server on the specified host. Same as host on the command line. By default, queries the server in the environment variable NICNAMESERVER or WHOISSERVER if either is set, otherwise queries whois.crsnic.net.
- -n
Disable recursion.
- -p port
Connect to the specified port. Same as port on the command line. Default is 43.
- -r
Force recursion when the server responds with the name of another server. The default when the default name server is used.
- -t timeout
Set a timeout period of timeout seconds.
- -v
Verbose. Display the query before sending it to the server.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.