> From [EMAIL PROTECTED] Fri May 28 18:34:59 2004
> Date: Fri, 28 May 2004 09:52:05 -0500
> From: "Barton Wold" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]>
> Subject: LPRng: LPD limit
>

> Does anyone know if there is someway to configure LPRng to only
> accept a certain number of LPD requests?  I had a problem a few
> weeks ago with GNOME print manager on a linux workstation opening
> 500 ports per minute (one for each printer) and it eventually used
> up all of swap on the server!  I have put into place a port timeout
> on the server, but I think I am still vulnerable in that there is
> no limit to the number of ports than can be opened.

> I now ran into another problem with a couple of windows boxes
> opening up a number of ports for non-existent printers, and am
> sensing that this is yet another example of a potential problem
> with idle LPD print ports.  Or is there something else I should be
> considering???  Thanks for any advice!

>
> Barton Wold
>

The LPRng server (lpd) can be configured to accept and perform
at most a limited number of jobs at a time.

# Purpose: maximum number of servers that can be active
#   default max_servers_active=1024  (INTEGER)

This value can be used to 'throttle' the number of active processes.

By the way, the 'fifo' option will cause connections
to be accepted from a system,  but not SERVICE the connection until the previous
lpr/lpq/whatever request is finished.

# Purpose: enforce FIFO (first in, first out) sequential job printing order
#   default fifo  (FLAG on)
# Purpose: FIFO lock file
#   default fifo_lock_file=fifo.lock  (STRING)

Patrick Powell                 Astart Technologies
[EMAIL PROTECTED]            6741 Convoy Court
Network and System             San Diego, CA 92111
  Consulting                   858-874-6543 FAX 858-751-2435
LPRng - Print Spooler (http://www.lprng.com)

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