How to Deploy GBase 8a Cluster When Servers Use a Non-Default SSH Port

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GBase 8a cluster installations fail by default when Linux servers use a custom SSH port, such as 2222, because the installer and internal services cannot communicate over the standard port 22. To resolve this, administrators must configure a user-level SSH config file that maps each node's IP address to the correct port, eliminating the need to manually pass the port flag during connections. The installer's demo.options file must also include the sshPort parameter, which ensures the gcware cluster manager adopts the correct port after installation. Once both settings are applied, the installation proceeds successfully and all nodes appear with an OPEN status. This approach is particularly relevant in security-hardened environments where the default SSH port is intentionally changed to reduce exposure.

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