giacintocifelli/decoupler

decoupler for client-server connection when both sides are likely to drop

README

decoupler (ka) is a filter to be placed between a client/server connection.

It will keep the client alive all the time (unless it dies by itself, in which case it will accept a reconnection, too).

It is designed for connections when the server is likely to die, for example when using a mobile connection, and the new IP address will not be the same as the previous one (ie: not handled quickly with an IP table manipulation).

decoupler will attempt to reconnect to the server, and until this is not possible will drop the packets from the client, without buffering.

configuration

decoupler offers a series or properties to configure the log, in particular to run well under systemd.

On top of this, the disconnection/reconnection work better if the socket is closed quickly. Check: cat /proc/sys/net/ipv4/tcp_fin_timeout // default 60 seconds change to 1 second: sudo su echo "1" > /proc/sys/net/ipv4/tcp_fin_timeout