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Re: [tlug] Does Mac still use cups?
- Date: Thu, 20 Oct 2011 14:32:47 +0900
- From: "Stephen J. Turnbull" <firstname.lastname@example.org>
- Subject: Re: [tlug] Does Mac still use cups?
- References: <CADLSRd4RQXyEEwF95w11EynUnuPbDjPrxi3Wq8ZeVoyf+E=s2Q@example.com> <email@example.com> <CADLSRd5Zy1=ep102D5bMuPKranE7cNdAJ5nTBxXGNbasL4dyig@example.com>
nigel barker writes: > but they only need to run cups as a client, don't they? Buwhahaha. Sorry, CUPS doesn't work that way. It can probably be operated that way, but good luck if that's what you want to do. You'll have a revolution on your hands if you ask users to specify ports and IP addresses, or Unix /dev paths, every time they want to print to a non-default printer. Let's think about what we're looking at a for a second. It's system that is intended to automatically discover and manage peripherals attached to arbitrary nodes of the network. Some of them may be powered off at any given time but still usable. Local programs that want to print should not have to wait on network outages any more than they should have to wait on a current job printing the Bible in Tagalog. New ones may be attached, or old ones removed at arbitrary nodes at any time. This is non-trivial, I think you'll admit. So what CUPS basically does is establish a P2P network of hosts on the network. Users with printers ask CUPS to discover local printers, then tell it whether it's allowed to announce those printers on the network, and to whom (FVO "whom" that can be specified as CIDR specs). Users who want to print optionally ask CUPS to discover printers (since printers probably change only occasionally, the user's favorite printers are probably already cached locally), then select from those available. CUPS handles the nitty-gritty under the hood. > > If it's running, visit http://localhost:631/ and see what happens. > > Tried that and got nothing. That's what makes me ask this question. > So you think I should try and start cups. How do you do that on a Mac > /etc/init.d/cups start > or is that wishful thinking on my part? If you only have a couple to do, or if you can spread this task out over time or delegate to users, as Shawn said, I'm sure you can configure this in the Printers screen of System Preferences. If you have to do lots of these or generally would prefer a CLI, learn about launchctl(1). (Sorry, no recipes, I only handle a couple of Macs so the GUI is acceptable to me.)
- Re: [tlug] Does Mac still use cups?
- From: nigel barker
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