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Thread: Printer, printer setup, multifunction printer, HP laserjet

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    Re: Printer, printer setup, multifunction printer, HP laserj

    Quote Originally Posted by hcp_dk View Post
    I just did as suggested an disabled firewall:
    Lets look at the results:
    SLED: printing fine. even after reboot
    • When the firewall is enabled, it doesn't print.
    • When the firewall is disabled, it does print.

    This tells me it's a SLED firewall issue. The firewall is blocking traffic on required ports.
    • Check the firewall configuration.
    • Verify that all required ports are configured correctly.

    I would work on this first as it appears to be the easiest to resolve and what you learn here will help in resolving your SLES issues.

    Remember to restart the firewall service after making changes.

    SLES: no change, don't print
    I assume the message about "Another Firewall Active" is from SLES?

    I suspect the "other" firewall, whatever it may be, is still blocking the ports needed for printing.

    FYI, here's a brief description how your firewall configuration is implemented.

    • When you use YaST Firewall, it saves the configuration in /etc/sysconfig/SEfirewall2.
    • If you prefer and if you know what you are doing, you can use a text editor to change /etc/sysconfig/SEfirewall2 yourself.
    • When you start the firewall (rcSuSEfirewall2 start) the configuration is read from /etc/sysconfig/SEfirewall2 and used to create a set of "iptables" rules.
      These rules are what really control access to your system.
    • When you stop the firewall (rcSuSEfirewall2 stop) the rules are removed from "iptables"

    When there is no firewall active, this is what you should see:
    server:~ # iptables -L
    Chain INPUT (policy ACCEPT)
    target prot opt source destination
    Chain FORWARD (policy ACCEPT)
    target prot opt source destination
    Chain OUTPUT (policy ACCEPT)
    target prot opt source destination
    server:~ #
    Please run these commands on your SLES system so we can see what might still be blocked after your firewall is shut down.
    server:~ # rcSuSEfirewall2 stop
    server:~ # iptables -L
    Please reply and paste the output from the commands between code tags. Use the "#" at the top of the posting box.

    ...Awaiting your reply.
    Last edited by KBOYLE; 25-Feb-2017 at 19:44.
    Kevin Boyle - Knowledge Partner
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