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LPRng-HOWTO
21 Dec 1998 (For LPRng-3.5.4)
The LPRng software is an enhanced, extended, and portable implementation
of the Berkeley LPR print spooler functionality. While providing the same
interface and meeting RFC1179 requirements, the implementation is completely
independant and provides support for the following features: lightweight (no databases
needed) lpr, lpc, and lprm programs; dynamic redirection of print queues;
automatic job holding; highly verbose diagnostics; multiple printers serving
a single queue; client programs do not need to run SETUID root; greatly enhanced
security checks; load balancing across multiple printers;
and a greatly improved permission and authorization mechanism.
The source software compiles and runs on a wide variety of UNIX systems,
and is compatible with other print spoolers and network printers that use
the LPR interface and meet RFC1179 requirements. The package comes with filters for PostScript and HP printers, as well
as the usual 'dumb' printers, and the PostScript and HP filters support
page counting and produce accounting information accounting. In addition
there are a wide variety of filters for page formatting
and to produce banner pages. For users that require compatibility with the SVR4 lp and lpstat programs,
the LPRng package provides emulation of these programs.
In addition, a publically available PCNFSD server
is distributed with LPRng and interfaces with the PC/DOS/Windows based
NFS style print spoolers.
In addition,
LPRng can be easily integrated with the Samba SMB support package.
For users that require secure and/or authenticated printing support,
LPRng supports Kerberos 5,
MIT Kerberos 4 extensions to LPR,
and PGP authentication methods.
Additional authentication support is extremely simple to add.
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