To configure the firewall settings

To be able to run this utility:

You must have super-user authority (e.g. root user)
$COBDIR must be set to the value of the product install folder for Visual COBOL Development Hub.

From a shell command, run the following:
```
$COBDIR/remotedev/configrdo
```
At the Daemon port prompt, enter the port number that the daemon should listen on, or press Enter to accept the default.
Note: The default settings for these port prompts are specified in the rdo.cfg configuration file.

The Server range is a range of port numbers that a required RDO server will be started on when the daemon receives a request.
At the Server range low port prompt, enter the starting number of the server port range and press Enter, or press Enter to accept the default.
At the Server range high port prompt, enter the ending number of the server port range and press Enter, or press Enter to accept the default.
The defaults are written to the rdo.cfg configuration file.

If you are running this utility on Red Hat 7.2 (or later) or CentOS 7.2 (or later), an additional prompt is displayed; otherwise, the utility closes.
At the Do you want to configure the firewall prompt, press Y and then Enter to configure further firewall settings, or press N and then Enter to close the utility. If you selected Y, the configured firewall zones are listed.
To configure an existing zone, press the corresponding number and then Enter, or press Enter for the default zone (as indicated at the end of the prompt).
Note: At this point, you can also create a new zone: press N and then Enter, and then type the new zone name and press Enter. The new zone is listed, and you can now select its corresponding number to configure it.

The current firewall status is displayed, where it checks if the currently specified ports are open in the firewall; if they are not, the utility adds them to the firewall settings.
If you need to open more ports, press Y and then Enter, and then enter either a single port number, or a range, and then press Enter.
The additional ports are opened.
If either of the ssh and samba services are not running in the firewall zone, you are prompted to add them: press Y and then Enter or N and then Enter, as appropriate, for each service.
Note: If the service is already running, you are not prompted.

An overview of the firewall settings is displayed.
To save the changes permanently (that is, even after the firewall is restarted), press Y and then Enter; to save the settings for the firewall until it is next stopped, N and then Enter.
The utility is closed.

Note: If you need to remove any ports or services you have added to the firewall, use the firewall-cmd utility that is part of the operating system.