By address
Copy the Server Address from the server's Details tab and send it to friends with the password. They join by that address the same way as any Arma 3 dedicated server. This is the join on Windows, with the Tunnel or with Ports, and for a server on Ports on a VPS.
From the server list on Linux
When HaruHost runs as a service on Linux, as the one-command install sets it up, a tunneled server shows in Arma 3's server list at the Tunnel's public address. Friends search the Server Title from the Details tab and join it there, with no router setup on your side. New servers are named HaruHost Arma 3 and a number until you change it.
Can't connect?
- Check that the server shows as online in HaruHost.
- Copy the whole Server Address, with the port after the colon.
- In the server list, search the exact Server Title, not the Server Name, which is only HaruHost's label for the server.
- With Ports, the server's ports must be reachable from the internet. Or turn on the Tunnel.
Questions
Where do I find my Arma 3 server's address?
On the server's Details tab in HaruHost, as the Server Address. With the Tunnel on Windows, it is the Tunnel's public address.
Where is the Server Title?
On the same Details tab. It is the name players see and search in the server list.