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I'm connecting using VPNBook servers and it works fine with this command:

 sudo openvpn --config /etc/openvpn/vpnbook-udp-53.ovpn --auth-user-pass /etc/openvpn/password.txt

but I just can't seem to figure out how to stop it without a reboot.

I've tried service openvpn stop and /etc/init.d/vpnbook stop, but that doesn't seem to affect it.

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How exactly with ifconfig? –  Adam May 23 '13 at 13:59
    
Which one would it be? eth0, lo, tun2, or wlan0 –  Adam May 23 '13 at 14:13
    
simply do > sudo /etc/init.d/network-manager restart < –  Qasim May 23 '13 at 15:06
    
I am curious, when a VPN is started this way does it not show up in the network manager. I have only always used the network manager connect and disconnect and don't currently have a VPN to test but wondered. –  Dennis Feb 19 '14 at 12:49

4 Answers 4

This command definitely works for me, and it should work for you too.

sudo killall openvpn
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The successful steps in my case were:

# stop the service    
$ sudo /etc/init.d/openvpn stop

# find the process if for some reason it keeps running
$ lsof -i | grep openvpn

# kill the proccess(s) by its PID
$ kill -9 <PID>

# if necessary restart the service again
$ sudo /etc/init.d/openvpn start


For some reason killall -SIGIN openvpn did not work for me, but the steps above did.

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Well, this is the best answer in my opinion. Killing process is the weird method, but requesting the service to stop should do things as it must. –  Sopalajo de Arrierez Jul 27 at 22:21

Just hit CTRL+C in the terminal you just started OpenVPN.

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Try this

killall -SIGINT openvpn

You can get more info on different signals you can send here: http://openvpn.net/index.php/open-source/documentation/howto.html#control

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killall -SIGINT openvpn openvpn(15360): Operation not permitted openvpn: no process found sudo killall -SICINT openvpn SICINT: unknown signal; killall -l lists signals. –  Adam May 23 '13 at 13:57
1  
sudo killall openvpn in a new terminal worked for me. –  Adam May 24 '13 at 18:09

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