sudo cp /etc/openvpn/monUser.ovpn cp /etc/openvpn/monUser_LAN.ovpn 

sudo nano /etc/openvpn/monUser_LAN.ovpn

remote www.server_LAN.com 1194

sudo nano /etc/hosts

192.168.1.42       www.server_LAN.com

sudo nano /opt/scripts/vpnSwitcher.bash

#!/bin/bash
# -- vpnSwitcher --
#  -> WTFPL - infos script : https://www.0rion.netlib.re/forum4/viewtopic.php?f=9&t=646&p=1460#p1460
# -> code by voxdemonix <-
# -> V1.11 (2017/09/11) <-
# uncomment next line for debug
#set -x

if [ ! "$SUDO_USER" ]; then
echo "!!! i need root !!!"
exit 0
fi

    #SCRIPTS OPTIONS
LANG="fr" # notification service ; accept : fr, usa (default)
notificationType="notify" # accept : echo; notify, nothing. Notify not work with root user.

    # NETWORK OPTIONS
INTERFACE="tun"
hostnameVpnLAN="192.168.1.69" # (VPN1 hostname) l'adresse IP locale (LAN) de votre serveur OpenVPN
MacVpnLocal="69:69:69:69:69:69" #l'adresse mac de votre serveur OpenVPN (tapez ifconfig dans un terminal sur votre server)

    # VPN OPTIONS
fichierOvpnLAN="/etc/openvpn/myUser_LAN.ovpn" # (VPN1) le PATH de votre fichier de conf .ovpn en LAN
fichierOvpnNotLAN="/etc/openvpn/myUser.ovpn" # (VPN2) le PATH de votre fichier de conf .ovpn pour les connnexions WAN/SSH
openVpn1Param=" " # add options (ex: --route-nopull) for openvpn connexion to server 1 (lan)
openVpn2Param=" " # add options (ex: --route-nopull) for openvpn connexion to server 2 (ssh/tor/wan)

    # SSH OPTIONS
hosnameVpnNotLAN="blablablablablabla.onion" # (VPN2 hostname)
UserLocalForSshTunneling="daenerys" # l'user a utiliser sur votre ordinateur pour le montage du tunnel (celui qui a exporté sa clés)
UserRemoteForSshTunneling="proxy-ssh" # l'user a utiliser côté server ( /!\ n'utilisez jamais root !)
portEntree="1194" # le port sur le pc local, par défaut 1194 (tcp)
portSortie="1194" # le port sur le serveur, par défaut 1194 (tcp)
sshLanEnable=0  # 0 for disable ; 1 for enable : enable or disable the ssh tunneling in LAN
sshNotLanEnable=0 # 0 for disable ; 1 for enable : enable or disable the ssh tunneling in Wan | Tor



            # NOTIFICATION SYSTEM
function vpnNotification {
        # $1 = message ID (watch switch/case);
        # $2 = hostnameVPN
    message=""
    #hostnameVPN=$(cat "$2" | grep "remote " | sed 's/remote //g' | sed 's/ [[:digit:]]\+//g')
    hostnameVPN=$2

    case $LANG in
        fr )
                case $1 in
                    VpnDisabled )
                            message="Connexion VPN fermée ($hostnameVPN)"
                        ;;
                    VpnConnecting )
                            message="Connexion VPN en cours ($hostnameVPN)"
                        ;;
                    VpnEnabled )
                            message="VPN Connecté ! ($hostnameVPN)"
                        ;;
                    SshStop )
                            message="Tunnel SSH STOP ($hostnameVPN)"
                        ;;
                    SshStart )
                            message="Tunnel SSH START ($hostnameVPN)"
                        ;;
                    * )
                            message="message inconnu"
                        ;;
                esac
            ;;
        usa | *)
                case $1 in
                    VpnDisabled )
                            message="VPN Connection Close ($hostnameVPN)"
                        ;;
                    VpnConnecting )
                            message="VPN Connection in progress ($hostnameVPN)"
                        ;;
                    VpnEnabled )
                            message="VPN Connected ! ($hostnameVPN)"
                        ;;
                    SshStop )
                            message="SSH Tunneling STOP ($hostnameVPN)"
                        ;;
                    SshStart )
                            message="SSH Tunneling START ($hostnameVPN)"
                        ;;
                    * )
                            message="unknow message"
                        ;;
                esac
            ;;
    esac


    case $notificationType in
        echo)
                echo "$message"
            ;;
        notify)
                notify-send "$message"
            ;;
        nothing | *)
            ;;
    esac
}

function quitOpenVPN {
        # $1 = ovpn ( $fichierOvpnLAN, $fichierOvpnNotLAN)
        # $2 = hostnameVPN ( $hostnameVpnLAN, $hosnameVpnNotLAN)
        ovpn=$1
        hostVPN=$2
            #stop VPN
        if [ $(pkill -c -f $ovpn) -gt 0 ]; then
		hostnameVPN=$(cat $ovpn | grep "remote " | sed 's/remote //g' | sed 's/ [[:digit:]]\+//g')
		vpnNotification "VpnDisabled" $hostnameVPN
        fi
            #stop ssh
#        if ps -aux | grep "[a]utossh" | grep "$hostVPN"  | grep -v "grep" >> /dev/null 2>&1; then
#            for pid in `ps -ef | grep "[a]utossh" | grep "$hostVPN"  | grep -v "grep" | awk '{print $2}'` ; do kill $pid ; done
		if [ $(pkill -c -f "autossh.*$UserRemoteForSshTunneling@$hostVPN") -gt 0 ]; then
            vpnNotification "SshStop" $hostVPN
        fi
        sleep 1
}

function startOpenVPN {
        # $1 = hostname VPN ($hostnameVpnLAN, $hosnameVpnNotLAN)
        # $2 = ovpn ($fichierOvpnLAN, $fichierOvpnNotLAN)
        # $3 = ssh enable (1) or not (0) ($sshLanEnable, $sshNotLanEnable)
        # $4 = OpenVpn Param ($openVpn1Param, $openVpn2Param)

        hostVPN=$1
        ovpn=$2
        sshChoice=$3
        openvpnParam=$4

                # SSH TUNNELING
            if [ $sshChoice == 1 ]; then
                    # kill oprevious ssh tunneling
                for pid in `ps -ef | grep "[a]utossh" | grep "$hostVPN" | awk '{print $2}'` ; do kill $pid ; done
                    # creat new ssh tunneling
                su $UserLocalForSshTunneling -c "autossh -M 0 -q -N -o 'ServerAliveInterval 60' -o 'ServerAliveCountMax 3' -L $portEntree:127.0.0.1:$portSortie $UserRemoteForSshTunneling@$hostVPN -f"
		        if ps -aux | grep "[a]utossh" | grep "$hostVPN"  | grep -v "grep" >> /dev/null 2>&1; then
		            vpnNotification "SshStart" $hostVPN
		        fi
            fi

                # START OpenVPN
            openvpn --daemon $openvpnParam --config $ovpn

                # NOTIFICATIONS
            hostnameVPN=$(cat $ovpn | grep "remote " | sed 's/remote //g' | sed 's/ [[:digit:]]\+//g')
            vpnNotification "VpnConnecting" $hostnameVPN

                # boucle qui permet de verifier si le VPN se connecte bien
        stop=0
        while [ $stop -lt 10 ]
        do       # temps d'attente entre chaque tentative
            if ifconfig | grep -iq $INTERFACE; then
                    vpnNotification "VpnEnabled" $hostnameVPN
                    stop=10
                    exit
            fi
                sleep 5
               stop=$((stop+1))
        done

}



        # boucle qui permet d'attendre que le réseau soit connecté
stop="0"
while [ $stop -lt 1 ]
do
	sleep 3       # temps d'attente entre chaque tentative

	_IP=$(hostname -I) || true
	if [ "$_IP" ]; then
	        stop=1
	fi
done

if ps -aux | grep "[o]penvpn" >> /dev/null 2>&1; then
    #Connexion VPN active

            # vpn server 1
        quitOpenVPN $fichierOvpnLAN $hostnameVpnLAN
            # vpn server 2
        quitOpenVPN $fichierOvpnNotLAN $hosnameVpnNotLAN


else

        ping $hostnameVpnLAN -c 2 >> /dev/null 2>&1
        macRecover=$(arp -n | grep -i -o $MacVpnLocal)

        if [ "$macRecover" == "$MacVpnLocal" ]; then
        #        echo "local/LAN/First VPN"
            startOpenVPN $hostnameVpnLAN $fichierOvpnLAN $sshLanEnable $openVpn1Param

        else
        #        echo "tor/wan/second VPN"
            startOpenVPN $hosnameVpnNotLAN $fichierOvpnNotLAN $sshNotLanEnable $openVpn2Param

        fi

fi

sudo chmod +x /opt/scripts/vpnSwitcher.bash

sudo /opt/scripts/vpnSwitcher.bash

sudo crontab -e

@reboot		/opt/scripts/vpnSwitcher.bash