To listen to a specific IP: server_bind_addr = "192.168.12.69"
To listen to any IPv4 address: server_bind_addr = "0.0.0.0"
Or to listen to any address including IPv6 (if supported): server_bind_addr = "any"
This specifies the number of connections the hub will be able to accept in the backlog before they must be processed by the hub.
A too low number here will mean the hub will not accept connections fast enough when users are reconnecting really fast. The hub should under normal circumstances be able to empty the listen backlog several times per second.
Unix users: file_acl = "/etc/uhub/motd.txt"
Windows users: file_acl = "c:\uhub\motd.txt"
Unix users: file_acl = "/etc/uhub/users.conf"
Windows users: file_acl = "c:\uhub\users.conf"
Unix users: file_acl = "/etc/uhub/rules.txt"
Windows users: file_acl = "c:\uhub\rules.txt"