LPRng - An Extended Print Spooler System v.3.1.3.

  The LPRng software is an enhanced, extended, and portable version of
  the Berkeley LPR software.  While providing the same general
  functionality, the implementation is completely new and provides
  support for the following features:  lightweight (no databases needed)lprng:    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 SUID root;
  greatly enhanced security checks; and a greatly improved permission
  and authorization mechanism.