Symptoms
Plesk installation via Plesk Web Installer fails with one of the following error messages:
Could not connect to the target server. dial tcp: lookup hostname on 192.0.2.2:53: no such host
OR
Cannot connect to SSH host 192.0.2.2: dial tcp 192.0.2.2:22: i/o timeout
Cause
Plesk Web Installer cannot reach the server due to an invalid IP address or server hostname.
Resolution
Plesk Web Installer can deploy Plesk on a Linux server with a valid public IP address:
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Go to Plesk Web Installer.
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Select Install Automatically on a Server
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In the Server IP address or hostname option, type a public IP address from your Linux server or its hostname that resolves to a valid public IP address.
If the server does not have a valid public IP address yet, use other options available in the KB article: