Applicable to:
- Plesk for Linux
Symptoms
-
nginx fails to start with the following error:
[warn] 91333#0: "ssl_stapling" ignored, host not found in OCSP responder "r3.o.lencr.org" in the certificate "/opt/psa/var/certificates/sqfABw7p2"
-
Accessing Domains > example.com > SSL/TLS Certificates in Plesk displays the following error:
Could not get Mozilla TLS config: cURL error 6 could not resolve host: statics.tls.security.mozilla.org; Unknown error (see https://curl.haxx.se/libcurl/c/libcurl-errors.html).
Cause
Name resolution issue.
Resolution
-
Connect to the server via SSH.
-
Add Google nameserver to
/etc/resolv.conf
file:# echo "nameserver 8.8.8.8" >> /etc/resolv.conf
-
If the issue persists re-enable local firewall rules and restart Plesk services:
# systemctl restart sw-engine && systemctl restart sw-cp-server
Note: If the server is running with
systemd-resolved
orNetworkManager
adjust the networking configuration manually or contact the hosting provider for assistance.