A fast check, if your server could be vulnerable to CVE-2021-44228
This only checks if it is impossible, that you could be vulnerable.
wget https://raw.githubusercontent.com/nuokh/log4j_checker_beta/main/log4j_checker_beta.sh -q -O - |bash
The command locate
has to to be installed, be sure to have locate up-to-date with:
sudo updatedb