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RE: Apache 2441 proxy over AJP not working after upgrade to LR 7.3.2-GA3

Julian Kühnemundt, modified 5 Years ago.
Apache 2441 proxy over AJP not working after upgrade to LR 7.3.2-GA3
New Member Posts: 5 Join Date: 6/18/20 Recent Posts
Hey,We are proxying our Liferay Portal Server with an Apache webserver using mod_jk.  Everything was working fine when we were using  Liferay 7.1.1. , but after upgrading to Liferay 7.3.2 that proxy connection is not working anymore.  Both Liferay Instances are running on the same machine and are using the same ports (we aren't runing them in parallel).
I've attached an excerpt from the Apache mod_jk logs. These lines are basically printed all the time, when trying to talk to Tomcat 9.0.33. They aren't bringing up any precise hint, but maybe some of you guys had that problem as well.Thanks in advance!

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Christoph Rabel, modified 5 Years ago.
RE: Apache 2441 proxy over AJP not working after upgrade to LR 7.3.2-GA3
Liferay Legend Posts: 1555 Join Date: 9/24/09 Recent Posts
You probably hit the Ghostcat mitigation.
https://liferay.dev/blogs/-/blogs/tomcat-9-0-31-ghostcat-and-ajp
Julian Kühnemundt, modified 5 Years ago.
RE: Apache 2441 proxy over AJP not working after upgrade to LR 7.3.2-GA3
New Member Posts: 5 Join Date: 6/18/20 Recent Posts
Great article, our portal is up and running. Thank you very much!
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Olaf Kock, modified 5 Years ago.
RE: Apache 2441 proxy over AJP not working after upgrade to LR 7.3.2-GA3
Liferay Legend Posts: 6441 Join Date: 9/23/08 Recent Posts
good to know your problem is solved. Leaves two issues though:
  • Please don't post textual content (logs) as image. They're not indexed, hard to read, and require extra attention & clicks.
  • Also, two different servers "running on the same machine and are using the same ports" - impossible... (?)
Julian Kühnemundt, modified 5 Years ago.
RE: Apache 2441 proxy over AJP not working after upgrade to LR 7.3.2-GA3
New Member Posts: 5 Join Date: 6/18/20 Recent Posts
Hey,thank you for your tips, Olaf. Will keep them in mind! I should have been more specific, when i was talking about our server setup. Both instances are installed on the same machine and configured to use the same ports. But they are never run in parallel, as that is technically not possible.