[cups] cupsd changing remote printer definitions in printers.conf
Michael Sweet
msweet at apple.com
Wed Dec 6 12:08:00 PST 2017
Kevin,
Maybe cups-browsed is doing something, or some other third-party software running on your servers? CUPS itself doesn't do anything like this...
> On Dec 6, 2017, at 9:57 AM, Kevin Kretz <kevin at rentec.com> wrote:
>
> Hi, Hope this is the right list for my question.
>
> I have a print server (we'll call it printserver1) which has a bunch of printers defined. These printers live in a segregated network, inaccessible to most machines other than this print server.
>
> There is also a new network, used for testing and also mostly segregated from the main network. It also hosts a print server running cups (we'll call it printserver2). The client hosts running in this network can't access anything on the main network. Printserver2 is allowed to communicate with printserver1.
>
> When I set up printserver2 and define its printers like
>
> DeviceURI ipp://printserver1.domain.com/printers/printer_name
>
> everything works great. That is, until every hour on the 14th minute, when some process rewrites some of my printer definitions.
>
> Most of the printers on printserver1 are defined like
>
> DeviceURI socket://printername.domain.com:9100/
>
> All of the printers defined this way on printserver1 continue to work properly on printserver2.
>
> However, four printers on printserver1 are defined with IPP, like
>
> DeviceURI ipp://printername.domain.com
>
> ... and after whatever refresh procedure cups does hourly runs, their definitions on printserver2 are changed to match those on printserver1.
>
> I understand the benefit of that when both printservers are on the same network. But in this case, they aren't - the initial config works, and the updated config doesn't.
>
> I can't find reference to what this update process is or how to modify its behavior. Can someone point me in the right direction please?
>
>
> thanks
>
> Kevin
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_________________________________________________________
Michael Sweet, Senior Printing System Engineer
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