rsync -P -rsh HOST:/source/path/ /destination/path/

HOST being defined in ~/.ssh/config

When using a poor connection, mosh is a great tool (github)

My goal is to quickly open a connection to my rebound server having synced my ssh config.

#!/bin/bash
 
#
# usefull to connect to an host using a mosh jump server when using poor internet on the client side.
#
 
# The Jump server on witch mosh is installed as defined in ~/.ssh/config
JUMP_SERVER="MY_JUMP_SERVER"
 
# de UDP port to use on the server, leave empty for default. 
MOSH_PORT="12345"
 
echo "Updating SSH bookmarks from ~/.ssh/config"
grep -Eo "Host [A-Za-z0-9_-]+"  ~/.ssh/config | cut -c 6- | sed -e 's/^/ssh /' > ~/.bookmarks-ssh
 
echo "uploading ~/.ssh/config to jump server"
scp ~/.ssh/config $JUMP_SERVER:~/.ssh/config
 
 
if [ ! "$MOSH_PORT" ];then
	echo "No port defined"
	mosh $JUMP_SERVER
else 
	echo "Port $MOSH_PORT defined"
	mosh -p $MOSH_PORT $JUMP_SERVER
fi

To make the typing faster on the rebound server, I use the same method as this script to get to automatically type my destination using .bookmarks-ssh.