This script does allow a quick check of the local certificates, in order to make sure none of them is expired:

for pem in /etc/ssl/certs/*.crt /etc/ssl/certs/*.pem /etc/pki/tls/certs/*.pem /etc/pki/tls/certs/*.crt; do
  printf '%s: %s\n' \
    "$(date --date="$(openssl x509 -enddate -noout -in "$pem"|cut -d= -f 2)" --iso-8601)" \
    "$pem"
done | sort

The output will look like:

2017-11-06: /etc/pki/tls/certs/ldapserver.pem
2022-12-15: /etc/pki/tls/certs/ca-bundle.crt
2022-12-15: /etc/pki/tls/certs/ca-bundle.trust.crt
2023-02-08: /etc/pki/tls/certs/localhost.crt
2025-07-11: /etc/pki/tls/certs/ldap.local.crt
2033-05-08: /etc/pki/tls/certs/local.crt

When a process is starting sub-processes on a linux system, you would have to stop every single child processes in order to stop them all.

Instead of that, you can easily kill the parent process so it can stop spawning new process.

You can find the parent process with the following command (replace the CHILDPID with your PID):

ps -o ppid= -p $CHILDPID