Article ID: 125417, created on May 4, 2015, last review on May 4, 2015

  • Applies to:
  • Plesk Automation 11.5

Symptoms

Attempt to create e-mail fails with the following error message:

Error: The error 'Unknown SSL protocol error in connection to IP:8443 ' occurred during the connection to the agent at 'https://IP:8443/agent.cgi'.

Cause

This issue caused by the fact that offline management for Postfix node is enabled on Hardware node.

[root@HardwareNode ~]# vzlist -o offline_management CTID
OFF_MGMT
yes

Resolution

To fix this issue disable offline management for the Postfix container on hardware node with the following command:

[root@HardwareNode ~]# prlctl set CTID --offline_management off
The CT has been successfully configured.

Make sure that offline management is disabled:

[root@HardwareNode ~]# vzlist -o offline_management CTID
OFF_MGMT
no
[root@HardwareNode ~]# grep -i offline /etc/vz/conf/CTID.conf
OFFLINE_MANAGEMENT="no"

Search Words

offline_management

Unknown SSL protocol error

Unknown SSL protocol error in connection

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