How to avoid sending traffic accidently to internett if netbird is not running

Community Support Linux
1

Hi, how can i ensure that i do not send data into the internet if netbird is not running. As example if i do a request at http://netbird-peer-ip it will be send over netbird to the target peer. But if netbird is not running for some reason, it will send out to the normal network interface instead. I can confirm this with traceroute, but (of course) it do not reach a target server. But still I would like to ensure that any data is only send over netbird.

One idea to avoid it is to use the netbird peer domain instead. this would enures that the domain can not be resolved is the netbird is running. but an application might can still cache it, so this do not work either.

Hit this problem on a v-server which i use (among other things) as a reverse proxy for services which run at home. http://netbird-peer-ip is the target for the caddy reverse proxy.

2

Unless you use exit nodes, any traffic that goes over the public ip address of something stays using the normal internet. But anything that’s either as an exit node, or setup using the netbird IP address, should be going over the Netbird internet lan.

3

Thanks for the answer and sorry for the late reply.
My worry is that if the netbird service do not start or crash for some reason, traffic (which might include login data / access token etc) is routed into the normal internet instead to the netbird peer. What happen in a node is offline? Will it still be routed through netbird (which mean it will simple fail) or it is send to the internet.