Unable to start migration: Failed to connect to target Plesk server by Plesk API Plesk error 1006 Access to API is disabled

Symptoms

• Unable to start migration:

  CONFIG_TEXT: Failed to connect to target Plesk server by Plesk API: Plesk error [1006]: Access to API is disabled for 203.0.113.2

• Cannot access Plesk on the target server via HTTPS. Error in Google Chrome:

  CONFIG_TEXT: ERR_CONNECTION_TIMED_OUT

Cause

8443 TCP port is closed on the target server.

Resolution

1. Allow connection to 8443 TCP port on the target server:

   1. Connect to the server via SSH ;
   2. Run the following command to open port in iptables :

   # iptables -I INPUT 1 -p tcp --dport 8443 -j ACCEPT

2. Make sure that connection is possible from the target server on 8443 port locally and remotely. For example:

   # telnet example.com 8443
   Trying 203.0.113.3...
   Connected to 203.0.113.3.
   Escape character is '^]'.

Note: If the above instructions did not help and the port is still inaccessible, it means it is blocked on a higher level. Contact your service provider to find what blocks the access.

Additional information

#213916665 Migration to Plesk 12.5 fails: Access to API is disabled