Resolved Plesk 17.8.11: all websites with CMS down after 4 Plesk Updates this morning

[GerdSchrewe]

There were 4 Plesk 17.8.11 updates this morning.

Since this morning all webs with CMS (TYpo3/Wordpress) are not reachable on my two V-Servers.

(Internal Server error).

Restart or „repair web“ does not help.

Mail works.

Plesk works also.

Normal HTML web pages work also.

Plesk 17.8.11 Ubuntu 18.04 LTS

Thanx for any help!

 

[IgorG]

Since this morning all webs with CMS (TYpo3/Wordpress) are not reachable on my two V-Servers.

(Internal Server error).

Need more details — exact error message, helpful something from logs, etc.
This KB article may be helpful for troubleshooting: Plesk for Linux services logs and configuration files

 

[GerdSchrewe]

Good Morning Igor,
Plesk Updates from this morning are the problem. Found a fix here. I have to downgrade Apache.
Website suddenly started to show 500 error: AH10292: Invalid proxy UDS filename

 

[GerdSchrewe]

This fix has helped me:

Downgrade Apache to previous version:

export version="2.4.29-1ubuntu4"; apt-get install apache2=$version apache2-utils=$version apache2-data=$version apache2-bin=$version

Set to "hold" package for updates:

apt-mark hold apache2

 

[Monty]

Issue - All Domains Apache2/Error 500

FYI: Canonical has released new apache2 packages some minutes ago which fix the regression: Change log : apache2 package : Ubuntu Bugreport: Bug #1945311 “Fix for CVE-2021-40438 breaks existing configs” : Bugs : apache2 package : Ubuntu

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