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The finger daemon runs on TCP port 79. The client will (in the case of remote hosts) open a connection to port 79. An RUIP (Remote User Information Program) is started on the remote end of the connection to process the request. The local host sends the RUIP one line query based upon the Finger query specification, and waits for the RUIP to respond.
Basic Info. The Finger program/service is utilized for retrieving details about computer users. Typically, the information provided includes the user's login name, full name, and, in some cases, additional details.
This is a simple protocol which provides an interface to a remote user information program. Based on RFC 742, a description of the original Finger protocol, this memo attempts to clarify the expected communication between the two ends of a Finger connection.
Finger is based on the Transmission Control Protocol, using TCP port 79 decimal (117 octal). The local host opens a TCP connection to a remote host on the Finger port. An RUIP becomes available on the remote end of the connection to process the request.
7 kwi 2023 · Finger ports are used to communicate with the Finger service, which is typically running on port 79. However, Finger has been largely deprecated due to security concerns, as it can potentially expose sensitive information and allow attackers to gather reconnaissance about a target system or network.
Finger – protokół komunikacyjny typu klient-serwer bazujący na protokole TCP, zdefiniowany w RFC 1288 ↓, powszechnie używany do lat 90. XX wieku. Został napisany przez Les Earnesta w 1971 roku.
The service can be queried using a finger client (found in most operating platforms) or by directly using telnet to connect to port 79. Two examples of this follow, in which I show the differences in results from querying a Cisco IOS device and a Solaris server.
