Additional Information

Networking over internet

For particular events like when activating a special event callsign or running a HQ station in the IARU HF Championships, it is possible to network DXLog.net installations over the internet.

The simplest and most secure way to do this is to rely on a VLAN (virtual LAN) software. There are several available such as:

LogMeIn Hamachi https://www.vpn.net/ FreeLan http://www.freelan.org/ Player.me https://player.me/ ZeroTier https://www.zerotier.com/

But if you are not worried about competitors or governments listening in on your log data, it is possible to route the traffic directly over the internet using port forwarding at the server.

To do this, the following must be observed:

• Only one of the stations should be configured as the server.

• It is necessary that the PC acting as server has a fixed IP

address or port forwarding will fail. This is done either by

manually configuring the PC to use a fixed IP address, or by

setting up the router in the server's LAN to to always allocate the

same IP address to it, e.g. by identifying it by its MAC address.

• It is necessary that the internet connection used by the server

PC either has a fixed IP address or uses dynamic DNS or

clients will not be able to reliable connect over the internet.

• The server's IP port (default 9888) must be forwarded to the

internet by configuring the router used to connect the server to

internet. Only TCP traffic should be forwarded. DXLog.net UDP traffic

is broadcast and should only be used locally.

• All other PC connecting to the server has to be set up as clients.

The target address is either the IP address of the server's internet

connection (e.g. 5.150.248.52) or the dynamic DNS address (e.g. hq.sm7iun.se)