[CentOS] CentOS 7 and network printers: FYI

Mon Feb 1 19:14:17 UTC 2016
Valeri Galtsev <galtsev at kicp.uchicago.edu>

On Mon, February 1, 2016 1:00 pm, m.roth at 5-cent.us wrote:
> Valeri Galtsev wrote:
>> On Mon, February 1, 2016 9:17 am, m.roth at 5-cent.us wrote:
>>> I got an email from a user that I'd just handed a new CentOS 7
>>> workstation to, wondering where all the printers were.
>>> It took some investigation to find /etc/cups/cups-browsed.conf, and
>>> see,
>>> in it, at the very bottom of the file:
>>> # NOTE: This file is not part of CUPS. You need to start & enable
>>> cups-browsed service.
>>> Which appears to be brand new with 7, and I have not seen any mention
>>> of
>>> it.
>>> Enabled and started, and the network printers are visible on the cups
>>> localhost web page->printers.
>> Unrelated to the topic, but may be helpful for somebody who uses cups
>> browsing option. I usually turn off cups browsing. Here is why: someone
>> brings laptop to our network, and may have one of his/her printers
>> "shared". Somebody else finds, sets it up, and happily uses it. Till the
>> first person goes away. Then second person comes to me telling my
>> printer
>> doesn't work. Which is not my printer, in a sense I can do nothing about
>> what the second person had done about that printer...
> You're in a different environment. I guarantee no one's wandering in with
> a printer here. Plus, on our VLAN, we are the ones giving out IP
> addresses, and *only* to MAC addresses we know. We don't know 'em, they
> don't get on the network.

As I said, my comment was _unrelated_ to the topic. As, as you said,
environments are different, and as ours is different from yours,
somebody's may be similar to ours as well...

Thanks for your original post though: everyone of us may hit the snag you
described some day!


Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247