If you’re seeing a page that looks like the screenshot above and receiving an error message in the logs like the one below, then you need to fix the issue with apache2 server.
500 error: AH10292: Invalid proxy UDS filename
If you’re getting the following error after rune the
Ubuntu 20.08 Severs
If you’re using Ubuntu 20.08, run the following commands:
Check if you’re using apache2.4.41 for ubuntu3.5
grep 'status installed' /var/log/dpkg.log | grep apache2:amd64
Output:
2021-09-27 12:46:57 status installed apache2:amd64 2.4.41-4ubuntu3.5
Apply the patch
Downgrade Apache to the previous version:
export version="2.4.41-4ubuntu3"; apt-get install apache2=$version apache2-utils=$version apache2-data=$version apache2-bin=$version
Set to “hold” package for updates:
apt-mark hold apache2
For Ubuntu 18.08 and above
Downgrade Apache to the 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
Troubleshooting the commands above
# export version="2.4.41-4ubuntu3"; apt-get install apache2=$version apache2-utils=$version apache2-data=$version apache2-bin=$version
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Version '2.4.41-4ubuntu3' for 'apache2' was not found
E: Version '2.4.41-4ubuntu3' for 'apache2-utils' was not found
E: Version '2.4.41-4ubuntu3' for 'apache2-data' was not found
E: Version '2.4.41-4ubuntu3' for 'apache2-bin' was not found
if you’re getting an error like the one above, then you will need to run the following commands:
sudo add-apt-repository ppa:ondrej/apache2
sudo apt install apache2