Firewall <-> CUPS
Hello, Suse 8.2 with a 2.4.20-4GB-athlon kernel is running on my computer. In yast2 I have configured and got to work the SuSEfirewall. But since the firewall is working my computer does not recognise the CUPS printer installed on the local network. In /etc/sysconfig/SuSEfirewall2 under point 10 I have added: W_TRUSTED_NETS="141.30.17.91,tcp,631" where 141.30.17.91 refers to the CUPS server in the network and 631 is the ipp port. But even after a restart of the firewall with this configuration the printers are not seen by my computer. Do I have to allow more ports than only 631? Or are other configurations required in order to get CUPS working. I would appreciate any hints concerning this problem. Best regards Michael -- _____________________________________________ Michael Graupner Institute for Theoretical Physics Dresden University of Technology 01062 Dresden Germany _____________________________________________
On Thu, 2003-09-25 at 14:44, Michael Graupner wrote:
Hello,
Suse 8.2 with a 2.4.20-4GB-athlon kernel is running on my computer. In yast2 I have configured and got to work the SuSEfirewall. But since the firewall is working my computer does not recognise the CUPS printer installed on the local network. What does your network setup look like?
Why is local printer access going through the firewall? Is you PC not on the same subnet as the printers?
In /etc/sysconfig/SuSEfirewall2 under point 10 I have added:
W_TRUSTED_NETS="141.30.17.91,tcp,631"
where 141.30.17.91 refers to the CUPS server in the network and 631 is the ipp port. But even after a restart of the firewall with this configuration the printers are not seen by my computer.
Do I have to allow more ports than only 631? Or are other configurations required in order to get CUPS working.
I would appreciate any hints concerning this problem.
Best regards Michael
-- _____________________________________________ Michael Graupner
Institute for Theoretical Physics Dresden University of Technology 01062 Dresden Germany _____________________________________________ -- -- Raymond Leach <raymondl@knowledgefactory.co.za> Network Support Specialist http://www.knowledgefactory.co.za "lynx -source http://www.rchq.co.za/raymondl.asc | gpg --import" Key fingerprint = 7209 A695 9EE0 E971 A9AD 00EE 8757 EE47 F06F FB28 --
Hi,
Why is local printer access going through the firewall? Is you PC not on the same subnet as the printers?
I think individual packet filtering on every single machine is a good idea, at the price of having to configure the filtering rules for every running service. About the CUPS problem: Are you sure it's a firewall problem? I don't think port 631 has to be opened on the client machine. Does it work with the firewall completely shut down? Check out the CUPS logs (and the firewall entries in /var/log/messages, if your problem is really firewall related), you may find helpful hints there. Bye, Holger
participants (3)
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Holger Schletz -
Michael Graupner -
Ray Leach