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DP 23.4 Home page not rendering - firewall issue?

Andy Heath

Hi,

We have a new installation of DP 23.4:

  • RHEL 8.8 Cell Manager
  • RHEL 8.8 Reporting Server

When in the GUI, I go to Home page, but it does not render the GUI at all, no error, just a blank GUI grey blank page, i.e. not white page. When I turn off the firewall on CM, the Home page renders straight away on it's white page. So this suggests to me the firewall is the problem on the CM. I've allowed what I thought was all the ports for the Home page to work, but it's not working:

  • -A IN_public_allow -p tcp -m multiport --dports 80,443,5555,7116,8443,5432,7112 -m conntrack --ctstate NEW -j ACCEPT

What am I missing, checking other DP servers we have in other environments, they follow the same port set. The problem I have is the full iptables in /etc/sysconfig/iptables is massive. The environment I am supported was built by someone else, they have lots of rules, but no others for those ports.

Is there a "normal" firewall connection which would be expected to be allowed, that might be disabled on my system, which is stopping the home page rendering up with the firewall turned on?

Any help or advice gratefully received.

Cheers,

Andy

  • 0

    Should have said, rest of the GUI works fine, Client, Internal Database, etc..., it's just Home which won't render without the firewall off

  • 0  

    Any chance anything is logged into server.log or DPserver.log at the time you try to access the Home context?

    Koen Verbelen

    Although I am an OpenText employee, I am speaking for myself and not for OpenText.
    If you found this post useful, give it a “Like” or click on "Verify Answer" under the "More" button.
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  • Verified Answer

    +1 in reply to   

    Hi Koen,

    I can't find any useful messages at all in /var/opt/omni/log on the cell manager. I did re-start the GUI in DEBUG mode and couldn't find anything obvious. So I stood back and tried to trace through the connection from Windows GUI to Linux CM. On our Windows box we have our firewall software in reporting only mode at the moment, so I could see when I was in the GUI, it was trying to contact the cell manager on port 7116, as expected, but also a few entries for 7115 as well. 7115 is not a normal port we apply, but I decided to apply it to the Linux CM firewall, and hey presto, the Home page rendered just fine :-) 

    So I'm assuming for our installation, 7116 & 7115 is needed to get the GUI, and specifically the home page function, both working. 

    I'm happy now, I can end the week on a high, I got the home page working with the firewall turned on :-)

    Cheers, Andy

  • 0   in reply to   

    Thanks a lot for reporting this! Let me do some additional investigation and get our documentation updated if needed.

    Koen Verbelen

    Although I am an OpenText employee, I am speaking for myself and not for OpenText.
    If you found this post useful, give it a “Like” or click on "Verify Answer" under the "More" button.
    You may also be interested in my Data Protector Support Tips listed per category

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