1Review the default rule
Linux uses SSH and Windows uses Remote Desktop. The default ports are TCP 22 and TCP 3389 respectively, or the custom port chosen during configuration. Check the actual access details and Network tab before changing rules.
2Add an application rule
Select TCP or UDP, enter the port and an IPv4 network in CIDR notation. The range 0.0.0.0/0 allows all IPv4 sources.
3Restrict administration
Use your own network range for remote administration. Check your connection before removing an existing access rule. Duplicate rules are rejected.