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FINGERD(8) System Manager's Manual FINGERD(8) NAME fingerd -- remote user information server SYNOPSIS fingerd [-d] [-k] [-s] [-l] [-p filename] DESCRIPTION The fingerd utility uses a simple protocol based on RFC1196 that pro- vides an interface to finger(1) at several network sites. It is sup- posed to return a friendly, human-oriented status report on either the system at the moment or a particular person in depth. There is no re- quired format and the protocol consists mostly of specifying a single "command line", thus, fingerd can also be used to implement other pro- tocols in conjunction with the -p flag. The fingerd utility is started by inetd(8), which listens for TCP re- quests at port 79. Once connected it reads a single command line ter- minated by a <CRLF> which is passed to finger(1). The fingerd utility closes its connections as soon as the output is finished. If the line is null (i.e., just a <CRLF> is sent) then finger(1) re- turns a "default" report that lists all people logged into the system at that moment. If a user name is specified (e.g., eric<CRLF>) then the response lists more extended information for only that particular user, whether logged in or not. Allowable "names" in the command line include both "login names" and "user names". If a name is ambiguous, all possible deriva- tions are returned. The following options may be passed to fingerd as server program argu- ments in /etc/inetd.conf: -d Enable debugging mode. In debugging mode, fingerd will not at- tempt any network-related operations on stdin, and it will print the full finger command line to stderr before executing it. -k Suppress login information. See the description of the -k op- tion in finger(1) for details. -s Enable secure mode. Queries without a user name are rejected and forwarding of queries to other remote hosts is denied. -l Enable logging. The name of the host originating the query is reported via syslog(3) at LOG_NOTICE priority. -p Use an alternate program as the local information provider. The default local program executed by fingerd is finger(1). By specifying a customized local server, this option allows a sys- tem manager to have more control over what information is pro- vided to remote sites. If -p is specified, fingerd will also set the environment variable FINGERD_REMOTE_HOST to the name of the host making the request. SEE ALSO finger(1), inetd(8) HISTORY The fingerd utility appeared in 4.3BSD. FreeBSD 14.3 November 19, 2014 FINGERD(8)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | HISTORY
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