Starts OpenVPN and moves the OVPN network interface into its own network namespace

• can force every kind of application into a specific connection
• keep your host network configuration as it is
• prevent the application from connecting somewhere else
• works without virtualization environments or containers

• only works with openvpn ptp connections
• its a Bash script and can easily be edited

• Bash
• linux kernel compiled with "advanced router" and "policy routing" features
• iproute2 (https://lartc.org/howto/lartc.iproute2.html)

The main reason which lead to the development of this script was to keep its author busy while learning the capabilities of iproute2. However, one resulting usecase is to jail a torrent application into a openvpn connection to provide anonymity.

Usage: netjail -c <openvpn.conf> [-a <application> [-u <user>]] [-n <netns name>] [-h]
	 -c file	specify the openvpn config file which should be used
	 -a application	optional: specify a application to run inside the netns
	 -u user	optional: specify a user to run the application inside the netns
	 -h		show this help