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The Line Printer Daemon protocol/Line Printer Remote protocol (or LPD, LPR) is a network printing protocol for submitting print jobs to a remote printer. The original implementation of LPD was in the Berkeley printing system in the BSD UNIX operating system; the LPRng project also supports that protocol.
The Line Printer Daemon protocol/Line Printer Remote protocol (or LPD, LPR) is a network protocol for submitting print jobs to a remote printer. The original implementation of LPD was in the Berkeley printing system in the 2.10 BSD UNIX operating system in 1988; the LPRng project also supports that protocol.
With its distribution in the influential AT&T Unix System V, the interface if not the implementation became the standard for users' control over printers. The lp command was included as a requirement in the POSIX.2 standard, [6] and a command by that name appeared in the subsequent lpr, LPRng and CUPS printing systems.
The lpd program is the daemon with which those programs communicate. These programs support the line printer daemon protocol , so that other machines on a network can submit jobs to a print queue on a machine running the Berkeley printing system, and so that the Berkeley printing system user commands can submit jobs to machines that support ...
Michael Sweet, who owned Easy Software Products, started developing CUPS in 1997 and the first public betas appeared in 1999. [4] [5] The original design of CUPS used the Line Printer Daemon protocol (LPD), but due to limitations in LPD and vendor incompatibilities, the Internet Printing Protocol (IPP) was chosen instead.
The port numbers in the range from 0 to 1023 (0 to 2 10 − 1) are the well-known ports or system ports. [3] They are used by system processes that provide widely used types of network services. On Unix-like operating systems, a process must execute with superuser privileges to be able to bind a network socket to an IP address using one of the ...
Print Services for UNIX is the name currently given by Microsoft to its support of the Line Printer Daemon protocol (also called LPR, LPD) on Windows NT-based systems. It is installed using the Add/Remove Programs control panel applet. This component allows LPD queues to be supported using the native Windows printing system.
LPRng is an open-source printing system compatible with the Berkeley printing system and implemented by many open-source Unix-like operating systems. It provides printer spooling and network print server functionality using the Line Printer Daemon protocol.