Switch DNS phase of the migration to Plesk fails with: urlopen error [Errno 110] Connection timed out

Plesk for Linux kb: bug

Applicable to:

Switch DNS phase of the migration to Plesk fails with:

PLESK_ERROR: Failed to perform action: Forward DNS Cause: <urlopen error [Errno 110] Connection timed out> That is a critical error, migration was stopped.
Migration was started using a private IP address for the source server.
Connection from a target public interface to a source private interface is not possible:

# curl -I https://192.0.2.2:8443/enterprise/control/agent.php --insecure --interface 203.0.113.2
curl: (7) Failed to connect to 192.0.2.2 port 8443: Connection timed out

where 192.0.2.2 is a source server private IP, and 203.0.113.2 is a target server public IP.

Plesk Migrator bug with ID PMT-3016 that is planned to be fixed in future product updates.

Until the bug is fixed, use one of the following workarounds:

Start a new migration

Start a new migration using public IP addresses for both target and source service.

Change current migration session settings

Connect to the target server via SSH.
Find a migration session's config.ini file inside /usr/local/psa/var/modules/panel-migrator/sessions/ directory.
Open this file for editing and specify public IP addresses for the source server under [source] section:

CONFIG_TEXT: [source]
ip = "203.0.113.1"
Proceed with the current migration.