SymptomsPlesk is running inside VE. VZPP-Plesk integration is enabled.
There is custom SSL certificate installed to be used by Control Panel. Certificate is installed correctly and showed properly when trying to access Plesk locally.
When Plesk is accessed outside, the different SSL certificate from VPS1 is used.
CauseThe reason of such behavior is that when VZPP-Plesk integration is used, all connections to Plesk go through VZCP running on Service VE. I.e. in this case SSL certificate is taken from VZCP website.
ResolutionTo avoid such issue you can use the following solutions:
1. Disable offline management for issued VE:
vzctl set VEID –offline_management no –save
Note: Using this solution, VZPP for current VE will be disabled.
2. Disable VZPP-Plesk redirection for whole server