Common Queries: Plesk FAQs, Part 11

a) Can I use Let’s Encrypt to secure Plesk ?

The Let’s Encrypt extension typically secures Plesk with a free Let’s Encrypt certificate. However, in some cases, like unsetting server hostnames, the extension may not automatically protect Plesk. To secure Plesk and your mail server, navigate to Tools & Settings > TLS/SSL Certificates.

b) What Oses are supported by the integrated repair kit ?

OSes supports all Windows operating systems, including Debian 8 and 9, Ubuntu 16, CentOS/Red Hat Enterprise Linux 7, and CloudLinux 7.

c) CAA resource records are only supported in Plesk Onyx 17.8. If I’m running an older Plesk version, will I have problems requesting a hosted domain certificate ?

Requesting a domain certificate without specifying a CAA resource record is unnecessary, as having a CAA record enhances safety, while the absence of one doesn’t matter.

d) What is the recommended configuration for the nginx cache ?

The outcome is significantly influenced by the configuration of your server.

e) How do I configure all my websites to use the latest PHP version ?

The outcome is significantly influenced by the configuration of your server.