Webmin uses default certificate instead LetsEncrypt

webmin-logoThe Letsencrypt certificate was successfully configured for Webmin in Webmin Configuration -> SSL settings -> Letsencrypt.

However Webmin still uses default certificate like it does not see Letsencrypt certificate at all.

Steps taken to cause problem:

  1. Go to webmin/edit_ssl.cgi > Let’s Encrypt
  2. Verify “Copy new key and certificate to Webmin?” set to Yes. Set all other options. Successfully generate SSL certificate.
  3. Restarted Webmin, still using default self-signed certificate.

Troubleshooting performed.

    1. Check directory:

root@hostname:/etc/webmin# ls -la lets*
-rw------- 1 root root 1647 Nov  7 20:37 letsencrypt-ca.pem
-rw------- 1 root root 2151 Nov  7 20:37 letsencrypt-cert.pem
-rw------- 1 root root 3247 Nov  7 20:37 letsencrypt-key.pem

2. Verified files are correct, valid and working.

3. Reconfigured Webmin’s Miniserver to use Letsencrypt certificate from /etc/letsencrypt (the recommended approach!) as follows:

Finally, I found that in Per-IP Certificates section there was custom entry for the Webmin’s domain that pointes to that default certificate!


I deleted the entry and restarted Webmin.

That fixed the problem!

Good luck!


Want me to do this for you? Drop me a line: itgalaxyzzz {at} gmail [dot] com