Finger Protocol

The "finger" protocol is used to return information on users on a specific host. Information that can be gained by using the finger is to see if someone is actively logged on to a server, or find a valid username. The finger protocol is far less prevalent now than it once was due to some problems with the protocol. Back in 1988 an Internet worm exploited an error in the protocol, and additional it was used by mischievous people to find information about server users. Finger had the potential to provide one of these mischievous users with information such as login name, phone number, and the last time the user had logged on to the system.

The finger service is very well known, and runs on port seventy-nine (79). The client or user opens an active open connection to port seventy-nine (79) with a one-line query, which is then processed by the server. The server then sends back the output of that query and then closes the connection to the client.

As I mentioned early due to problems in the past with the protocol many servers have this service disabled entirely in which case when the client attempts to connect to the service and the server has no passive open connection it will send back a RST and drop the connection. Though more often than not there will be a firewall blocking this port entirely and you won't even get that far.

For the full technical description and inner workings of this protocol please refer to its RFC, the finger protocol is defined in RFC 1288.

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

Latest News


ABC News

Comcast to Cap Broadband Use Starting in October
The Mac Observer - 22 hours ago
by Jeff Gamet , 9:15 AM EDT, August 29th, 2008 Cable and broadband Internet provider Comcast is prepping to start limiting the amount of data its ...
Comcast to Place a Cap on Internet Downloads New York Times
Critics Question Comcast Broadband Caps PC World
Posted by: Olga Kharif on August 29 BusinessWeek
San Francisco Chronicle - Reuters
all 386 news articles

Internet Entertainment Expectations On The Rise
North American Press Syndicate, NY - 21 hours ago
According to a 2008 Pew Internet & American Life Project report, 55 percent of American adults now have broadband Internet access at home, ...

Feds pump money into northern internet service
CBC.ca, Canada - 15 hours ago
Ablonczy said broadband internet service is a necessity, not a frill, for the North's remote communities. She said the service will mean "easier banking, ...

TopNews

World Phone forays into cable broadband internet service
Media Newsline, India - 15 hours ago
World Phone Internet Services Pvt. Ltd, India’s leading Category “A” Internet Service Provider today announced its foray into cable broadband internet ...
World Phone introduces cable broadband internet at Rs95 per month domain-B
World Phone to Offer Cable Broadband at Affordable Costs Network Computing
World phone offers cable broadband for Rs 95 Merinews
TelecomTiger - TopNews
all 7 news articles

Internet Innovation Alliance to Host Internet Booth and Cyber ...
MarketWatch - 22 hours ago
... America through two initiatives: Broadband Ambassadors, the nation's leading executives and academics who support greater usage of broadband Internet, ...

Woodstock's rising Internet star
New Brunswick Business Journal, Canada - 3 hours ago
Barrett Xplore Inc., Canada's largest rural broadband Internet provider, is building its business by going where the lines from Bell, Telus, ...

Third of UK homes still lack internet access
ZDNet UK, UK - Aug 28, 2008
Overall, more than half (56 percent) of UK homes now have broadband internet access — an increase of five percentage points on 2007, according to the ONS ...
No internet for a third of homes IT PRO
Record number of homes have broadband Telegraph.co.uk
Two-thirds of UK homes now have Internet connectivity TelecomTV
PC Advisor - Director of Finance online
all 59 news articles

South Korea Leads Internet Market in Asia
TMCnet - 19 hours ago
The countries in this group are the global leaders in broadband Internet, and provide better and extensive broadband access facilities to their users. ...
Broadband seen outstripping phone revenues of operators Manila Bulletin
all 2 news articles

Intel Announces Rs 5000 Desktop For The Indian Market
eBrandz, India - 1 hour ago
The Indian government intends to have 500 million Indians connected to the Internet, with more than 100 million broadband connections, and 100 million ...
Intel Announces Low-Cost Atom-Based Devices News Locale
all 3 news articles

Oman shortlists 6 for new fixed-line phone licence
Reuters - 20 hours ago
... package including a 25-year contract to build and operate the second fixed-line service and a similar 15-year contract for broadband Internet services. ...

Resources