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Re: CUPS - set up printer by name instead of IP address

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On 14/04/2020 19.46, The Natural Philosopher wrote:
> On 14/04/2020 15:10, Carlos E.R. wrote:
>> On 14/04/2020 15.35, The Natural Philosopher wrote:
>>> On 14/04/2020 14:00, Carlos E.R. wrote:
>>>> On 14/04/2020 07.10, Charlie Gibbs wrote:
>>>>> I find CUPS to be nice when it works, but frustrating when it
>>>>> doesn't - which happens often.  I've tracked it down to the
>>>>> fact that CUPS accesses my printer by its IP address - which
>>>>> changes from time to time when the printer is powered off or
>>>>> when its DHCP lease expires.  In the CUPS web-based interface
>>>>> (http://localhost:631), the "Printers" maintenance screen
>>>>> currently shows:
>>>>>
>>>>> Connection: lpd//192.168.0.41:515/PASSTHRU
>>>>>
>>>>> My printer, on the other hand, is showing an IP address of
>>>>> 192.168.0.45, so any attempts to print will fail.  If I delete
>>>>> and re-add the printer, CUPS will find the new IP address and
>>>>> all will be well - until the printer's IP address changes again.
>>>>>
>>>>> Is there a way to get CUPS to access the printer by its name
>>>>> (EPSONxxxxxx) rather than its IP address?
>>>>
>>>> Can you ping that name? My guess is "no". Then, of course CUPS can't 
>>>> find the printer by name.
>>>>
>>>> The usual solution is simply to assign a fixed IP to the printer. 
>>>> There are two basic methods: write the address in the printer own 
>>>> configuration panel or web page, or fixate the address in the router 
>>>> via DHCP.
>>>>
>>>> Another would be some kind of DNS setup that updates automatically.
>>>>
>>> Bonjour...
>>
>> Doesn't seem to work.
>>
>> Isengard:~ # lpinfo --include-schemes dnssd -v
>> Isengard:~ #
>>
>>
> ah. that foxes me. I THOUGHT that was how MAC OSX did it. I really did.
> And Mac OSX uses CUPS.
> 
> Ah. OS/X uses Air Print so the printer may be running THAT but not bonjour.
> 
> 
> 
>> I was rather thinking of an actual DNS setup that gets the name 
>> "somehow" and sets it up.
>>
> I think that is sort of how the bonjour/ air print works.,
> 
> I enabled both on my printer by using the printers web interface to 
> enable it and...
> 
> lpinfo --include-schemes dnssd -v
> network 
> dnssd://HP%20Color%20LaserJet%20Pro%20M252n%20(F63AC8)._pdl-datastream._tcp.local/ 
> 
> 
> It showed a blank before.
> 
> This web page may be useful:
> 
> https://wiki.debian.org/CUPSDriverlessPrinting
> 
> 
> 
> 
> 
>> Routers are in the best position to do this, but mine doesn't.
>>
> 
> No, routers are not really. The bonjour was designed for this really. IF 
> you can turn it on on te printer it SHOULD solve your problem the 
> 'official' and rather modern way and has the advantage (???) that any 
> mobile device  that connects to your network should also find the 
> printer and be able to use it.

I'm not talking of bonjour at all.

Just the router giving an IP to machines via DHCP, and finding their 
names (probably their windows names). I see my router finding "android" 
hosts. It can use rules to assign names on the DNS server that runs on 
the router.

It is easy to assign an IP to a printer on the DHCP server at the 
router. It should be trivial to also assign a name in the same config page.

That's all.


-- 
Cheers, Carlos.

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Thread

CUPS - set up printer by name instead of IP address Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2020-04-14 05:10 +0000
  Re: CUPS - set up printer by name instead of IP address Bob Tennent <BobT@tennent.ca> - 2020-04-14 11:18 +0000
    Re: CUPS - set up printer by name instead of IP address The Natural Philosopher <tnp@invalid.invalid> - 2020-04-14 13:04 +0100
  Re: CUPS - set up printer by name instead of IP address The Natural Philosopher <tnp@invalid.invalid> - 2020-04-14 13:00 +0100
  Re: CUPS - set up printer by name instead of IP address Andreas Kohlbach <ank@spamfence.net> - 2020-04-14 08:36 -0400
    Re: CUPS - set up printer by name instead of IP address The Natural Philosopher <tnp@invalid.invalid> - 2020-04-14 14:03 +0100
      Re: CUPS - set up printer by name instead of IP address Andreas Kohlbach <ank@spamfence.net> - 2020-04-14 13:30 -0400
  Re: CUPS - set up printer by name instead of IP address "Carlos E.R." <robin_listas@es.invalid> - 2020-04-14 15:00 +0200
    Re: CUPS - set up printer by name instead of IP address The Natural Philosopher <tnp@invalid.invalid> - 2020-04-14 14:35 +0100
      Re: CUPS - set up printer by name instead of IP address "Carlos E.R." <robin_listas@es.invalid> - 2020-04-14 16:10 +0200
        Re: CUPS - set up printer by name instead of IP address The Natural Philosopher <tnp@invalid.invalid> - 2020-04-14 18:46 +0100
          Re: CUPS - set up printer by name instead of IP address "Carlos E.R." <robin_listas@es.invalid> - 2020-04-15 12:45 +0200
            Re: CUPS - set up printer by name instead of IP address The Natural Philosopher <tnp@invalid.invalid> - 2020-04-15 11:58 +0100
              Re: CUPS - set up printer by name instead of IP address "Carlos E.R." <robin_listas@es.invalid> - 2020-04-16 12:53 +0200
                Re: CUPS - set up printer by name instead of IP address The Natural Philosopher <tnp@invalid.invalid> - 2020-04-16 13:03 +0100
                Re: CUPS - set up printer by name instead of IP address "Carlos E.R." <robin_listas@es.invalid> - 2020-04-16 22:50 +0200
                Re: CUPS - set up printer by name instead of IP address "Anonymous Remailer (austria)" <mixmaster@remailer.privacy.at> - 2020-04-17 01:45 +0200
                Re: CUPS - set up printer by name instead of IP address "Carlos E.R." <robin_listas@es.invalid> - 2020-04-17 04:19 +0200
            Re: CUPS - set up printer by name instead of IP address Rich <rich@example.invalid> - 2020-04-15 14:35 +0000
              Re: CUPS - set up printer by name instead of IP address Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2020-04-15 17:14 +0000
                Re: CUPS - set up printer by name instead of IP address Bit Twister <BitTwister@mouse-potato.com> - 2020-04-15 12:31 -0500
              Re: CUPS - set up printer by name instead of IP address "Carlos E.R." <robin_listas@es.invalid> - 2020-04-16 12:54 +0200
    Re: CUPS - set up printer by name instead of IP address "Rinaldi J. Montessi" <rinaldi@notaserver.com> - 2020-04-14 10:21 -0500
    Re: CUPS - set up printer by name instead of IP address Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2020-04-14 16:03 +0000
      Re: CUPS - set up printer by name instead of IP address The Natural Philosopher <tnp@invalid.invalid> - 2020-04-14 18:47 +0100
      Re: CUPS - set up printer by name instead of IP address "Carlos E.R." <robin_listas@es.invalid> - 2020-04-16 13:00 +0200

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