If I have an Ubuntu 22.04 server that must be upgraded to 24.04 and I do an in-place upgrade, what happens to our Pritunl app? I know nothing gets deleted, but I will then be trying to run Pritunl for 22.04 in Ubuntu 24.04 and they are probably not compatible right?
What would be recommended in this case? Or is it possible to upgrade the app once the OS is upgraded?
Most builds will work on multiple Ubuntu releases but the repository file should be updated to 24.04 at the same time as the upgrade to install a build for that specific Ubuntu release. The repository documentation has all the available repositories.
For older installations the DH params should be set to at least 2048 in the server settings to support newer releases of OpenSSL. This is a server side only value and changing it will not effect client configurations.