Whois Protocol - TCP/IP Suite

The Whois protocol is an information service not unlike the finger service. The Whois protocol provides the client or user with information about the owner of a domain or specific IP address. Information provided by the Whois protocol contains contact information such as address, company, telephone number, and e-mail address.

Whois is a very well known information service that runs on port forty-three (43) and accepts connections from clients with one-line queries. The whois service runs on the server in a passive open environment. When a user issues a query to the server, it responds to this query then closes the connection to the client. The query results are formatted in plain ASCII text and are human readable.

Looking up information via the Whois service is a great way to find information about the owners of websites, or the ISPs of people who spam or are abusive users. When you query a users IP address, it should give you the contact information of their Internet Service Provider (ISP) and provide you with detailed contact information and an e-mail for abusive users.

Anyone who runs a server should consider learning how to use the WHOIS information service. This is a very valuable tool that you can use in conjunction with your security logs to contact ISPs regarding problem users, or just for the average user who wants to report a spammer!

The formal technical documentation and specifics of the whois information service is defined in RFC 954.

Ken Dennis
http://KenDennis-RSS.homeip.net/

MORE RESOURCES:

Broadband Internet helps rural community move forward - AZ Central.com

Workshop on regional broadband internet, Brussels, Belgium - Cordis News

Nigerian satellite breaks down in orbit affecting broadband ... - The Guardian - Nigeria

table border=0 width= valign=top cellpadding=2 cellspacing=7trtd width=80 align=center valign=topfont style=font-size:85%;font-family:arial,sans-serifa href=http://news.google.com/news/url?sa=Tct=us/2i-0fd=Rurl=http://www.google.com/hostednews/afp/article/ALeqM5gFYssSKeydLeaMu2LSdiLBuFz5IQcid=1272375513ei=qOAnSdjzJ5XM8ASC1u0Xusg=AFQjCNEQ3ZpRopGTCK187E8lxBgKprZjkwimg src=http://news.google.com/news?imgefp=5D-L8ySeUmAJimgurl=www.google.com/hostednews/afp/media/ALeqM5jIYYKxcdfU95rJTakfYFNIe_A9RA width=80 height=57 alt= border=1brfont size=-2AFP/font/a/font/tdtd valign=top class=jfont style=font-size:85%;font-family:arial,sans-serifbrdiv style=padding-top:0.8em;img alt= height=1 width=1/divdiv class=lha href=http://news.google.com/news/url?sa=Tct=us/2-0fd=Rurl=http://www.ngrguardiannews.com/weekend/article01/indexn2_html%3Fpdate%3D211108%26ptitle%3DNigerian%2520satellite%2520breaks%2520down%2520in%2520orbit%2520affecting%2520broadband%2520internet%2520servicescid=1272375513ei=qOAnSdjzJ5XM8ASC1u0Xusg=AFQjCNHTedS3auXfzcxpxVBwf64uu-CerwNigerian satellite breaks down in orbit affecting bbroadband/b b.../b/abrfont size=-1font color=#6f6f6fThe Guardian - Nigeria,nbsp;Nigerianbsp;-/font nobrNov 20, 2008/nobr/fontbrfont size=-1On Monday night, Nigeria#39;s Satellite Communication, NigComSat, which was launched to provide phone, bbroadband Internet/b and broadcasting services to rural b.../b/fontbrfont size=-1a href=http://news.google.com/news/url?sa=Tct=us/2-1fd=Rurl=http://www.google.com/hostednews/afp/article/ALeqM5gFYssSKeydLeaMu2LSdiLBuFz5IQcid=1272375513ei=qOAnSdjzJ5XM8ASC1u0Xusg=AFQjCNEQ3ZpRopGTCK187E8lxBgKprZjkwDamaged Nigerian satellite can#39;t be recovered: officials/a font size=-1 color=#6f6f6fnobrAFP/nobr/font/fontbrfont class=p size=-1a class=p href=http://news.google.com/news?sourceid=navclientie=ISO-8859-1rls=GGLG,GGLG:2005-22,GGLG:enncl=1272375513hl=ennobrall 22 news articles/nobr/a/font/div/font/td/tr/table

Broadband Internet Crunch is Beginning to Occur - PR Newswire (press release)

table border=0 width= valign=top cellpadding=2 cellspacing=7trtd valign=top class=jfont style=font-size:85%;font-family:arial,sans-serifbrdiv style=padding-top:0.8em;img alt= height=1 width=1/divdiv class=lha href=http://news.google.com/news/url?sa=Tct=us/3-0fd=Rurl=http://sev.prnewswire.com/computer-electronics/20081119/NY4731719112008-1.htmlcid=1272358794ei=qOAnSdjzJ5XM8ASC1u0Xusg=AFQjCNGJp13vqzrKiPw09z7_PwEiQ4e-pgbBroadband Internet/b Crunch is Beginning to Occur/abrfont size=-1font color=#6f6f6fPR Newswire (press release),nbsp;NYnbsp;-/font nobrNov 19, 2008/nobr/fontbrfont size=-1b.../b Alliance is a broad-based coalition of business and non-profit organizations that aims to ensure that every American has access to bbroadband Internet/b. b.../b/fontbrfont size=-1a href=http://news.google.com/news/url?sa=Tct=us/3-1fd=Rurl=http://www.pcworld.com/businesscenter/article/154203/more_groups_call_for_national_broadband_strategy.htmlcid=1272358794ei=qOAnSdjzJ5XM8ASC1u0Xusg=AFQjCNFCbmdafvxJ4ZmIFZ8hEQwjk31vfwMore Groups Call for National Broadband Strategy/a font size=-1 color=#6f6f6fnobrPC World/nobr/font/fontbrfont class=p size=-1a class=p href=http://news.google.com/news?sourceid=navclientie=ISO-8859-1rls=GGLG,GGLG:2005-22,GGLG:enncl=1272358794hl=ennobrall 13 news articles/nobr/a/font/div/font/td/tr/table

Flow launches Broadband Internet to Grenada - Spice Islander

Study: Cable gains broadband subscribers in 3Q - Newsday

Intel plans hook up all of Cairo to WiMAX broadband internet by 2010 - Business Today Egypt

Broadband Advocates Stress Value of High-Speed Internet - Voice of America

table border=0 width= valign=top cellpadding=2 cellspacing=7trtd width=80 align=center valign=topfont style=font-size:85%;font-family:arial,sans-serifa href=http://news.google.com/news/url?sa=Tct=us/7i-0fd=Rurl=http://www.voanews.com/english/Science/2008-11-20-voa64.cfmcid=1272679934ei=qOAnSdjzJ5XM8ASC1u0Xusg=AFQjCNGf9OlPzCuFJug3H_f6s_XuBnkSpAimg src=http://news.google.com/news?imgefp=mIBb75fvB8sJimgurl=www.voanews.com/english/images/ethernet.jpg width=80 height=80 alt= border=1brfont size=-2Voice of America/font/a/font/tdtd valign=top class=jfont style=font-size:85%;font-family:arial,sans-serifbrdiv style=padding-top:0.8em;img alt= height=1 width=1/divdiv class=lha href=http://news.google.com/news/url?sa=Tct=us/7-0fd=Rurl=http://www.voanews.com/english/Science/2008-11-20-voa64.cfmcid=1272679934ei=qOAnSdjzJ5XM8ASC1u0Xusg=AFQjCNGf9OlPzCuFJug3H_f6s_XuBnkSpABroadband Advocates Stress Value of High-Speed Internet/abrfont size=-1font color=#6f6f6fVoice of Americanbsp;-/font nobrNov 20, 2008/nobr/fontbrfont size=-1By Art Chimes Some 55 percent of Americans have high-speed or bbroadband Internet/b service at home, according to a Pew study conducted earlier this year. b.../b/font/div/font/td/tr/table

Cable TV company offers broadband Internet service - BusinessWorld Online

Jordan: WiMAX operators hold 8.3% share of residential broadband ... - Al-Bawaba

Broadband-Internet - Google News

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