Hi, folks.  I'm trying to find out if there is some way to make 
permanent changes, such as the addition of access controls, to the cupsd 
configuration file.

Here's an example of the thing I'd like to accomplish.  We typically add 
a print queue to a server using the system-config-printer utility. 
After that there is a stanza in /etc/cups/cupsd.conf that looks 
something like:

     <Location /printers/r472>
     Order Deny,Allow
     Deny From All
     Allow From 127.0.0.1
     AuthType None
     </Location>

But we need to have client systems in our subnet print via this server 
as well, so we add (i.e., using vim or emacs) a line to the stanza 
allowing access from our subnet:

     <Location /printers/r472>
     Order Deny,Allow
     Deny From All
     Allow From 127.0.0.1
     Allow From 169.237.nnn.*
     AuthType None
     </Location>

After that we restart the cups daemon, and we have the desired result.

On the other hand, there is now a line in /etc/cupsd.conf that says:

     Lines below are automatically generated - DO NOT EDIT

I haven't tested this in SL 4.3, but in SL 3.x the hand edits that we 
made DID seem to disappear whenever we ran the print tool.  We worked 
around the problem simply by keeping a reference copy of cupsd.conf 
around so that we could quickly restore our configuration if necessary.

We've looked through the options in the system-config-printer utility. 
We've looked through the options in the CUPS admin utility:

     http://localhost:631/admin

We can't find any place to specify such things as the "Allow From" line.

Furthermore, the CUPS documentation itself makes a point of saying that 
the configuration file is a simple text file, so it's easy to edit. 
Also, the discussions that we've found on the web seem to suggest that 
hand editing is the way to go.

I am evidently missing something basic here.  How can we insert access 
controls, etc., such that the changes will be preserved across 
invocations of system-config-printer?  Can somebody enlighten me?  Thanks.

					- Mike
-- 
Michael Hannon            mailto:[log in to unmask]
Dept. of Physics          530.752.4966
University of California  530.752.4717 FAX
Davis, CA 95616-8677