Plesk’s CDN provider is going to switch off TLS 1.0/1.1 support soon for security reasons.
This means that Plesk servers running on the old Operating Systems (OS) without the latest OS updates will not be able to connect to Plesk resources served by CDN provider.
Plesk will not be able to connect to
- Extensions Catalog.
- APS Catalog.
- Online Help.
Potentially affected configurations
- CentOS 4/5/6/7.
- Ubuntu 12/14.
- Debian 5/6/7.
Windows servers are not affected.
Actions to take
For CentOS 5 and older, Ubuntu 14 and older, Debian 7 and older and Plesk 12.x and older
Migrate Plesk to supported Plesk and OS versions because the above-mentioned operating systems do not support TLS 1.2.
Temporary alternative to migration
Install Panel.ini Editor extension.
Go to My Extensions > Panel.ini Editor > Editor (tab).
[extensions]sections as follows:
For CentOS 6 and 7
Login to the server via SSH.
opensslpackages and restart
# yum update nss curl openssl -y
# service sw-engine restart
Note: it’s strongly recommended to update all system packages and reboot the server:
# yum update -y