Unable to start Nginx service: Failed with result ‘timeout’

Symptoms

• Unable to start Nginx service with the error:

  nginx.service: Failed with result 'timeout'

• Many messages as below can be found in /var/log/nginx/error.log file:

  [warn] 25236#0: "ssl_stapling" ignored, host not found in OCSP responder "r3.o.lencr.org" in the certificate "/usr/local/psa/var/certificates/scfTdclNf"

Cause

Unable to resolve r3.o.lencr.org (Let's Encrypt OCSP domain) from the server-side.

Resolution

1. Log into the server via SSH.

2. Using the vi text editor open the /etc/hosts file.

3. Add the line below:

   23.38.123.241 r3.o.lencr.org

4. Save the changes.
5. Try to restart Nginx service:

   # systemctl restart nginx