[Linux] How to fix TCP disconnection detection

[jmaralo]

To have a faster disconnection detection time in the GUI the following changes should be applied:

• In the config.toml:
  Change the [vehicle.network] table and add the following changes:

[vehicle.network]
# ...
keepalive = "1s"

This sets the keepalive interval to the min amount in linux (1s), a keepalive probe will be sent each second

• In a terminal:
  Run the following command:

sudo sysctl -w net.ipv4.tcp_keepalive_probe=1

This sets the max number of lost probes before the connection is terminated, in this case one probe.

This configuration is able to detect a disconnection in around 1s