firefox print dialog show all network printers

**pier_andreit** · 19-Oct-2017, 10:14

on my Laptop=Dell latitude E6510, RAM=8Gb, GPU=GT218 NVS 3100M, CPU=i7 Q 720 @ 1.60GHz running opensuse leap 42.3, plasma 5.11.0, KDE frameworks 5.38.0, KDE applications 17.08.1, Kernel 4.4.87-25-default, nvidia drivers, libreoffice 5.3.5.2.
firefox 52.4.0 (64-bit) print dialog shows all the printers in the network!!
I have not all this printers installed, I would like to have only the installed printers, how can I have this??
manythanks, ciao, pier :-)

**dcurtisfra** · 19-Oct-2017, 10:52

What is CUPS indicating with respect to known printer queues?

Are all the indicated printers really available on your LAN? Or, is there an issue with the Firewall of your IP/DSL Router?

**deano_ferrari** · 19-Oct-2017, 12:01

This is down to cups-browsed AFAIU, which uses Avahi to discover network printer broadcasts.

In /etc/cups/cups-browsed.conf there is

Code:

 Which protocols will we use to discover printers on the network?
# Can use DNSSD and/or CUPS and/or LDAP, or 'none' for neither.

BrowseRemoteProtocols DNSSD

If desired, change it to

Code:

BrowseRemoteProtocols none

then restart cups-browsed.

**pier_andreit** · 19-Oct-2017, 12:15

Originally Posted by dcurtisfra

What is CUPS indicating with respect to known printer queues?

Are all the indicated printers really available on your LAN? Or, is there an issue with the Firewall of your IP/DSL Router?

yes, they are all really available printer in the lan where I was, but before today never happened...

**pier_andreit** · 19-Oct-2017, 12:22

Originally Posted by deano_ferrari

This is down to cups-browsed AFAIU, which uses Avahi to discover network printer broadcasts.

In /etc/cups/cups-browsed.conf there is

Code:

 Which protocols will we use to discover printers on the network?
# Can use DNSSD and/or CUPS and/or LDAP, or 'none' for neither.

BrowseRemoteProtocols DNSSD

If desired, change it to

Code:

BrowseRemoteProtocols none

then restart cups-browsed.

now here it is set to

Code:

BrowseRemoteProtocols DNSSD,CUPS

I can try tomorrow, ...but I have three remote printers installed, if I set it to none, does cups allow me to print with these installed printers??

**hcvv** · 19-Oct-2017, 12:27

Originally Posted by pier_andreit

now here it is set to

Code:

BrowseRemoteProtocols DNSSD,CUPS

I can try tomorrow, ...but I have three remote printers installed, if I set it to none, does cups allow me to print with these installed printers??

When you configured them in CUPS, I assume it will be possible to user them as always.

And about the fact that CUPS now find them which wasn't the case earlier, you should of course try to remember what changed on the system in that time frame. We can only help with that if we have an idea what changed in the system, or maybe in the printers (are you the printer and/or network manager?).

**deano_ferrari** · 19-Oct-2017, 13:18

Originally Posted by pier_andreit

now here it is set to

Code:

BrowseRemoteProtocols DNSSD,CUPS

I can try tomorrow, ...but I have three remote printers installed, if I set it to none, does cups allow me to print with these installed printers??

As long as they are configured in /etc/cups/printers.conf then they should work as always (as Henk already mentioned).

**pier_andreit** · 20-Oct-2017, 01:52

Originally Posted by hcvv

When you configured them in CUPS, I assume it will be possible to user them as always.

yes, but I didn't installed/configured all these printers, and I used the yast>configure printer to install the three printers I use (I suppose it use CUPS)

Originally Posted by hcvv

And about the fact that CUPS now find them which wasn't the case earlier, you should of course try to remember what changed on the system in that time frame. We can only help with that if we have an idea what changed in the system, or maybe in the printers (are you the printer and/or network manager?).

I'm only a user, I'm not printer and/or network manager, and from when CUPS didn't find printers on the LAN and now I didn't changed anything in my leap 42.3, I only updated...

**pier_andreit** · 20-Oct-2017, 01:57

Originally Posted by deano_ferrari

As long as they are configured in /etc/cups/printers.conf then they should work as always (as Henk already mentioned).

I modified /etc/cups/cups-browsed.conf as follow:

Code:

# Which protocols will we use to discover printers on the network?
# Can use DNSSD and/or CUPS and/or LDAP, or 'none' for neither.

# BrowseRemoteProtocols DNSSD,CUPS #2017-10-20ott this was the original
# 2017-10-20ott the one belw here modified by me
BrowseRemoteProtocols none

but firefox printer dialog box continue to show a lot of LAN printers