Why does Avahi see my network printer but CUPS doesn't?












2














I've set up .local hostname resolution, started cups-browsed and restarted org.cups.cupsd.service. avahi-browse shows the WiFi printer:



$ avahi-browse --all --ignore-local | head --lines=1 | tr --squeeze-repeats ' '
+ enp5s0 IPv6 Canon MG6400 series _canon-bjnp1._tcp local


However, http://127.0.0.1:631/admin/ shows no printers whatsoever. What gives?










share|improve this question





























    2














    I've set up .local hostname resolution, started cups-browsed and restarted org.cups.cupsd.service. avahi-browse shows the WiFi printer:



    $ avahi-browse --all --ignore-local | head --lines=1 | tr --squeeze-repeats ' '
    + enp5s0 IPv6 Canon MG6400 series _canon-bjnp1._tcp local


    However, http://127.0.0.1:631/admin/ shows no printers whatsoever. What gives?










    share|improve this question



























      2












      2








      2


      1





      I've set up .local hostname resolution, started cups-browsed and restarted org.cups.cupsd.service. avahi-browse shows the WiFi printer:



      $ avahi-browse --all --ignore-local | head --lines=1 | tr --squeeze-repeats ' '
      + enp5s0 IPv6 Canon MG6400 series _canon-bjnp1._tcp local


      However, http://127.0.0.1:631/admin/ shows no printers whatsoever. What gives?










      share|improve this question















      I've set up .local hostname resolution, started cups-browsed and restarted org.cups.cupsd.service. avahi-browse shows the WiFi printer:



      $ avahi-browse --all --ignore-local | head --lines=1 | tr --squeeze-repeats ' '
      + enp5s0 IPv6 Canon MG6400 series _canon-bjnp1._tcp local


      However, http://127.0.0.1:631/admin/ shows no printers whatsoever. What gives?







      arch-linux cups avahi






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited May 14 '18 at 20:45

























      asked May 14 '18 at 10:28









      l0b0

      27.7k17114242




      27.7k17114242






















          2 Answers
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          1














          For automatic discovery, you need an extra component from CUPS called cups-browsed, which queries the Avahi daemon and then populates CUPS configuration based on what the Avahi daemon sees. Unfortunately, I'm not quite sure what's needed on Arch to get this set up (the daemon itself shouldn't need any customization to the configuration, I'm just not sure what the service name is on Arch to enable it, or even whether it's part of the standard CUPS install or not).






          share|improve this answer





















          • That's already installed & running.
            – l0b0
            May 14 '18 at 20:44





















          0














          WARNING: This answer in its totality is only valid for more recent versions of CUPS (like 2.2.x). For previous versions, ask specifically if you do not understand what the manpage for cupsd.conf says...





          First, CUPS only ever automatically installs and detects local network printers which announce themselves as IPP-capable (Internet Printing Protocol). A proprietary Canon-designed protocol will not work.



          To check if your printer is one of the IPP-enabled models, simply run



          ippfind [ENTER]


          It should return a list of print device (or CUPS queue) URIs which are IPP-enabled.



          Second, if your Canon MG6400 model did support IPP, your avahi-browse discovery should be returning not simply the service subtype _canon-bjnp1._tcp, but also _ipp._tcp. and/or _ipps._tcp. .... but maybe you are overlooking this, because your | head --lines=1 throws these results out of the window?



          Third, to enable CUPS for full participation in ZeroConf/Bonjour networking to automatically use shared printers and in turn share its own local printers, you need the following lines in your /etc/cups/cupsd.conf file:



          BrowseDNSSDSubTypes _cups,_print
          BrowseLocalProtocols all
          Port 631





          share|improve this answer





















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            2 Answers
            2






            active

            oldest

            votes








            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            1














            For automatic discovery, you need an extra component from CUPS called cups-browsed, which queries the Avahi daemon and then populates CUPS configuration based on what the Avahi daemon sees. Unfortunately, I'm not quite sure what's needed on Arch to get this set up (the daemon itself shouldn't need any customization to the configuration, I'm just not sure what the service name is on Arch to enable it, or even whether it's part of the standard CUPS install or not).






            share|improve this answer





















            • That's already installed & running.
              – l0b0
              May 14 '18 at 20:44


















            1














            For automatic discovery, you need an extra component from CUPS called cups-browsed, which queries the Avahi daemon and then populates CUPS configuration based on what the Avahi daemon sees. Unfortunately, I'm not quite sure what's needed on Arch to get this set up (the daemon itself shouldn't need any customization to the configuration, I'm just not sure what the service name is on Arch to enable it, or even whether it's part of the standard CUPS install or not).






            share|improve this answer





















            • That's already installed & running.
              – l0b0
              May 14 '18 at 20:44
















            1












            1








            1






            For automatic discovery, you need an extra component from CUPS called cups-browsed, which queries the Avahi daemon and then populates CUPS configuration based on what the Avahi daemon sees. Unfortunately, I'm not quite sure what's needed on Arch to get this set up (the daemon itself shouldn't need any customization to the configuration, I'm just not sure what the service name is on Arch to enable it, or even whether it's part of the standard CUPS install or not).






            share|improve this answer












            For automatic discovery, you need an extra component from CUPS called cups-browsed, which queries the Avahi daemon and then populates CUPS configuration based on what the Avahi daemon sees. Unfortunately, I'm not quite sure what's needed on Arch to get this set up (the daemon itself shouldn't need any customization to the configuration, I'm just not sure what the service name is on Arch to enable it, or even whether it's part of the standard CUPS install or not).







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered May 14 '18 at 19:15









            Austin Hemmelgarn

            6,00611016




            6,00611016












            • That's already installed & running.
              – l0b0
              May 14 '18 at 20:44




















            • That's already installed & running.
              – l0b0
              May 14 '18 at 20:44


















            That's already installed & running.
            – l0b0
            May 14 '18 at 20:44






            That's already installed & running.
            – l0b0
            May 14 '18 at 20:44















            0














            WARNING: This answer in its totality is only valid for more recent versions of CUPS (like 2.2.x). For previous versions, ask specifically if you do not understand what the manpage for cupsd.conf says...





            First, CUPS only ever automatically installs and detects local network printers which announce themselves as IPP-capable (Internet Printing Protocol). A proprietary Canon-designed protocol will not work.



            To check if your printer is one of the IPP-enabled models, simply run



            ippfind [ENTER]


            It should return a list of print device (or CUPS queue) URIs which are IPP-enabled.



            Second, if your Canon MG6400 model did support IPP, your avahi-browse discovery should be returning not simply the service subtype _canon-bjnp1._tcp, but also _ipp._tcp. and/or _ipps._tcp. .... but maybe you are overlooking this, because your | head --lines=1 throws these results out of the window?



            Third, to enable CUPS for full participation in ZeroConf/Bonjour networking to automatically use shared printers and in turn share its own local printers, you need the following lines in your /etc/cups/cupsd.conf file:



            BrowseDNSSDSubTypes _cups,_print
            BrowseLocalProtocols all
            Port 631





            share|improve this answer


























              0














              WARNING: This answer in its totality is only valid for more recent versions of CUPS (like 2.2.x). For previous versions, ask specifically if you do not understand what the manpage for cupsd.conf says...





              First, CUPS only ever automatically installs and detects local network printers which announce themselves as IPP-capable (Internet Printing Protocol). A proprietary Canon-designed protocol will not work.



              To check if your printer is one of the IPP-enabled models, simply run



              ippfind [ENTER]


              It should return a list of print device (or CUPS queue) URIs which are IPP-enabled.



              Second, if your Canon MG6400 model did support IPP, your avahi-browse discovery should be returning not simply the service subtype _canon-bjnp1._tcp, but also _ipp._tcp. and/or _ipps._tcp. .... but maybe you are overlooking this, because your | head --lines=1 throws these results out of the window?



              Third, to enable CUPS for full participation in ZeroConf/Bonjour networking to automatically use shared printers and in turn share its own local printers, you need the following lines in your /etc/cups/cupsd.conf file:



              BrowseDNSSDSubTypes _cups,_print
              BrowseLocalProtocols all
              Port 631





              share|improve this answer
























                0












                0








                0






                WARNING: This answer in its totality is only valid for more recent versions of CUPS (like 2.2.x). For previous versions, ask specifically if you do not understand what the manpage for cupsd.conf says...





                First, CUPS only ever automatically installs and detects local network printers which announce themselves as IPP-capable (Internet Printing Protocol). A proprietary Canon-designed protocol will not work.



                To check if your printer is one of the IPP-enabled models, simply run



                ippfind [ENTER]


                It should return a list of print device (or CUPS queue) URIs which are IPP-enabled.



                Second, if your Canon MG6400 model did support IPP, your avahi-browse discovery should be returning not simply the service subtype _canon-bjnp1._tcp, but also _ipp._tcp. and/or _ipps._tcp. .... but maybe you are overlooking this, because your | head --lines=1 throws these results out of the window?



                Third, to enable CUPS for full participation in ZeroConf/Bonjour networking to automatically use shared printers and in turn share its own local printers, you need the following lines in your /etc/cups/cupsd.conf file:



                BrowseDNSSDSubTypes _cups,_print
                BrowseLocalProtocols all
                Port 631





                share|improve this answer












                WARNING: This answer in its totality is only valid for more recent versions of CUPS (like 2.2.x). For previous versions, ask specifically if you do not understand what the manpage for cupsd.conf says...





                First, CUPS only ever automatically installs and detects local network printers which announce themselves as IPP-capable (Internet Printing Protocol). A proprietary Canon-designed protocol will not work.



                To check if your printer is one of the IPP-enabled models, simply run



                ippfind [ENTER]


                It should return a list of print device (or CUPS queue) URIs which are IPP-enabled.



                Second, if your Canon MG6400 model did support IPP, your avahi-browse discovery should be returning not simply the service subtype _canon-bjnp1._tcp, but also _ipp._tcp. and/or _ipps._tcp. .... but maybe you are overlooking this, because your | head --lines=1 throws these results out of the window?



                Third, to enable CUPS for full participation in ZeroConf/Bonjour networking to automatically use shared printers and in turn share its own local printers, you need the following lines in your /etc/cups/cupsd.conf file:



                BrowseDNSSDSubTypes _cups,_print
                BrowseLocalProtocols all
                Port 631






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Dec 25 '18 at 0:11









                Kurt Pfeifle

                47038




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