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fingerd(8) [freebsd man page]

FINGERD(8)						    BSD System Manager's Manual 						FINGERD(8)

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 provides an interface to finger(1) at several network sites. It is supposed to return a friendly, human-oriented status report on either the system at the moment or a particular person in depth. There is no required format and the protocol consists mostly of specifying a single ``command line'', thus, fingerd can also be used to implement other protocols in conjunction with the -p flag. The fingerd utility is started by inetd(8), which listens for TCP requests at port 79. Once connected it reads a single command line termi- nated 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) returns 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 pos- sible derivations are returned. The following options may be passed to fingerd as server program arguments in /etc/inetd.conf: -d Enable debugging mode. In debugging mode, fingerd will not attempt 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 option 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 specify- ing a customized local server, this option allows a system manager to have more control over what information is provided 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. BSD
November 19, 2014 BSD

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in.fingerd(1M)						  System Administration Commands					    in.fingerd(1M)

in.fingerd, fingerd - remote user information server SYNOPSIS
/usr/sbin/in.fingerd DESCRIPTION
fingerd implements the server side of the Name/Finger protocol, specified in RFC 742. The Name/Finger protocol provides a remote interface to programs which display information on system status and individual users. The protocol imposes little structure on the format of the exchange between client and server. The client provides a single command line to the finger server which returns a printable reply. fingerd waits for connections on TCP port 79. Once connected, it reads a single command line terminated by RETURN-LINEFEED and passes the arguments to finger(1), prepended with -s. fingerd closes its connections as soon as the output is finished. FILES
/var/adm/utmpx User and accounting information. /etc/passwd System password file. /var/adm/lastlog Last login times. $HOME/.plan User's plans. $HOME/.project User's projects. USAGE
fingerd and in.fingerd are IPv6-enabled. See ip6(7P). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWrcmds | +-----------------------------+-----------------------------+ SEE ALSO
finger(1), svcs(1), inetadm(1M), inetd(1M), svcadm(1M), attributes(5), smf(5), ip6(7P) Harrenstien, Ken, RFC 742, NAME/FINGER, Network Information Center, SRI International, Menlo Park, Calif., December 1977. NOTES
Connecting directly to the server from a TIP or an equally narrow-minded TELNET-protocol user program can result in meaningless attempts at option negotiation being sent to the server, which foul up the command line interpretation. fingerd should be taught to filter out IAC's and perhaps even respond negatively (IAC does not) to all option commands received. The in.fingerd service is managed by the service management facility, smf(5), under the service identifier: svc:/network/finger:default Administrative actions on this service, such as enabling, disabling, or requesting restart, can be performed using svcadm(1M). Responsibil- ity for initiating and restarting this service is delegated to inetd(1M). Use inetadm(1M) to make configuration changes and to view config- uration information for this service. The service's status can be queried using the svcs(1) command. SunOS 5.10 31 Jul 2004 in.fingerd(1M)
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