Hello Paride, i am sorry but i am not familiar with LXD containers and yes i can reproduce the issue. So i use my config from above
The Proxy Machine is now Debian 11 apache2 2.4.51-1~deb11u1 18.04/bionic apache2 2.4.29-1ubuntu4.20 -> is working as expected 20.04/focal apache2 2.4.41-4ubuntu3.8 -> not working as expected 21.04/hirsute apache2 2.4.46-4ubuntu1.4 -> not working as expected 21.10/impish apache2 2.4.48-3.1ubuntu3.1 -> not working as expected So i go ahead and compile apache from source to see how the upstream apache looks like and i came to the same result. With apache 2.4.41 starts the issue and the last version 2.4.51 is also affected from my perception. I create a bug report there. https://bz.apache.org/bugzilla/show_bug.cgi?id=65737 And hopfully there comming some more information or results. ** Bug watch added: bz.apache.org/bugzilla/ #65737 https://bz.apache.org/bugzilla/show_bug.cgi?id=65737 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939678 Title: Apache2 Balancer Manager not working after dist-upgrade to focal behind a Proxy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/1939678/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs