in.lpd(1m) [opensolaris man page]
in.lpd(1M) System Administration Commands in.lpd(1M) NAME
in.lpd - BSD print protocol adaptor SYNOPSIS
/usr/lib/print/in.lpd DESCRIPTION
in.lpd implements the network listening service for the BSD print protocol specified in RFC 1179. The BSD print protocol provides a remote interface for systems to interact with a local spooling system. The protocol defines five standard requests from the client to the server: starting queue processing, transferring print jobs, retrieving terse status, retrieving verbose status, and canceling print jobs. The in.lpd service is managed by the service management facility, smf(5), under the service identifier: svc:/network/lp 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. in.lpd uses the config/log_from_remote property to allow or disallow remote access. The default value of this property, localhost, disal- lows remote access. inetd waits for connections on TCP port 515. Upon receipt of a connect request, in.lpd is started to service the connection. Once the request has been filled, in.lpd closes the connection and exits. EXAMPLES
Example 1 Allowing Remote Access The following command allows remote access to in.lpd. # inetadm -m svc:/application/print/rfc1179:default bind_addr="" EXIT STATUS
The following exit values are returned: 0 Successful completion. non-zero An error occurred. FILES
/etc/printers.conf System printer configuration database. printers.conf.byname NIS version of /etc/printers.conf. printers.org_dir NIS+ version of /etc/printers.conf. /usr/lib/print/bsd-adaptor/bsd_*.so* Spooler translation modules. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWpcu | +-----------------------------+-----------------------------+ SEE ALSO
svcs(1), inetadm(1M), inetd(1M), svcadm(1M), printers.conf(4), attributes(5), smf(5) SunOS 5.11 1 Aug 2006 in.lpd(1M)
Check Out this Related Man Page
cups-lpd(8) Apple Inc. cups-lpd(8) NAME
cups-lpd - receive print jobs and report printer status to lpd clients SYNOPSIS
cups-lpd [ -h hostname[:port] ] [ -n ] [ -o option=value ] DESCRIPTION
cups-lpd is the CUPS Line Printer Daemon ("LPD") mini-server that supports legacy client systems that use the LPD protocol. cups-lpd does not act as a standalone network daemon but instead operates using the Internet "super-server" inetd(8) or xinetd(8). If you are using inetd, add the following line to the inetd.conf file to enable the cups-lpd mini-server: printer stream tcp nowait lp /usr/lib/cups/daemon/cups-lpd cups-lpd -o document-format=application/octet-stream Note: If you are using Solaris 10 or higher, you must run the inetdconv(1m) program to register the changes to the inetd.conf file. If you are using the newer xinetd(8) daemon, create a file named /etc/xinetd.d/cups containing the following lines: service printer { socket_type = stream protocol = tcp wait = no user = lp group = sys passenv = server = /usr/lib/cups/daemon/cups-lpd server_args = -o document-format=application/octet-stream } OPTIONS
-h hostname[:port] Sets the CUPS server (and port) to use. -n Disables reverse address lookups; normally cups-lpd will try to discover the hostname of the client via a reverse DNS lookup. -o name=value Inserts options for all print queues. Most often this is used to disable the "l" filter so that remote print jobs are filtered as needed for printing; the examples in the previous section set the "document-format" option to "application/octet-stream" which forces autodetection of the print file format. PERFORMANCE
cups-lpd performs well with small numbers of clients and printers. However, since a new process is created for each connection and since each process must query the printing system before each job submission, it does not scale to larger configurations. We highly recommend that large configurations use the native IPP support provided by CUPS instead. SECURITY
cups-lpd currently does not perform any access control based on the settings in cupsd.conf(5) or in the hosts.allow(5) or hosts.deny(5) files used by TCP wrappers. Therefore, running cups-lpd on your server will allow any computer on your network (and perhaps the entire Internet) to print to your server. While xinetd has built-in access control support, you should use the TCP wrappers package with inetd to limit access to only those comput- ers that should be able to print through your server. cups-lpd is not enabled by the standard CUPS distribution. Please consult with your operating system vendor to determine whether it is enabled on your system. COMPATIBILITY
cups-lpd does not enforce the restricted source port number specified in RFC 1179, as using restricted ports does not prevent users from submitting print jobs. While this behavior is different than standard Berkeley LPD implementations, it should not affect normal client operations. The output of the status requests follows RFC 2569, Mapping between LPD and IPP Protocols. Since many LPD implementations stray from this definition, remote status reporting to LPD clients may be unreliable. SEE ALSO
cups(1), cupsd(8), inetconv(1m), inetd(8), xinetd(8), http://localhost:631/help COPYRIGHT
Copyright 2007-2011 by Apple Inc. 4 August 2008 CUPS cups-lpd(8)