Issue Activating/updating Atomicorp ruleset (ModSecurity) results in "unmet dependencies" error

[King555]

Server operating system version

Ubuntu 18.04.6 LTS x64

Plesk version and microupdate number

18.0.56 Update #1 web admin edition

I'm trying to activate the Atomicorp (basic) ruleset in ModSecurity within Plesk. I got several different error messages within the last months (and I was not the only one, there are many threads about problems), but meanwhile it seems that this is the only message which prevents me from using the Atomicorp ruleset (Comodo works great, but I don't like it):

The following packages have unmet dependencies:
 libapache2-modsecurity-plesk : Conflicts: libapache2-mod-security2

This is from the log file which is created by the "aum" program.

Is it because Ubuntu 18 is not supported anymore? Plesk has been updated to the latest version today and I already removed and reinstalled ModSecurity. Any ideas?

 

[Peter Debik]

I guess that third-party repositories exist on the server that are incompatible.

https://support.plesk.com/hc/en-us/articles/12377962345879

If that is the case, one solution might be to

1. Login to the server via SSH
2. Check if any 3rdpary repositories are enabled. Disable the according to https://support.plesk.com/hc/en-us/articles/213367169
3. Remove "libapache2-modsecurity" package from the system:
   # dpkg -P --force-all libapache2-modsecurity
4. Execute below command to configure packages:
   # apt-get -f install
5. Reinstall manually Plesk updates:
   # plesk installer update --repatch

 

[King555]

Probably you mean "libapache2-mod-security2" instead of "libapache2-modsecurity" (because the first one is in my error message). But no matter whether I use dpkg or apt to remove "libapache2-mod-security2", this package is not installed (this is also the case for "libapache2-modsecurity"). Installed is only "libapache2-modsecurity-plesk".

My "/etc/apt/sources.list" contains more entries than mentioned in the support article, but all entries look like the official Ubuntu entries, definitely no 3rd-party entries.

"apt-get -f install" does nothing (nothing to do).

 

[rocketchef]

@King555 did you resolve this? I have the same issue.

 

[King555]

@rocketchef
Unfortunately no, the problem persists. I will try again when I upgraded to Ubuntu 22.