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 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
Migrate Plesk to supported Plesk and OS versions because above operating systems do not support TLS 1.2.
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