![]() ![]() To gracefully recover from this, you will likely have to use the wg-quick command to take the connection down, then bring it back up. The PostUP iptables rule from step 2 above restricts all traffic to the tunnel and all outgoing attempts to get traffic out fail. In this example, it’s possible to remove 172.x.y.z from the wg0 interface: sudo ip a del 172.x.y.z/32 dev wg0 One way to test a down tunnel is to delete the IP address from the WireGuard network interface, like this via the Terminal: sudo ip a del dev PublicKey = JPT1veXLmasj2uQDstX24mpR7VWD+GmV8JDkidkz91Q= PostUp = iptables -I OUTPUT ! -o %i -m mark ! -mark $(wg show %i fwmark) -m addrtype ! -dst-type LOCAL -j REJECT & ip6tables -I OUTPUT ! -o %i -m mark ! -mark $(wg show %i fwmark) -m addrtype ! -dst-type LOCAL -j REJECT ![]() In particular, this kill switch prevents my shared folders (shared with Samba) to be accessible from my local network, and, despite many attempts, I haven't been able to solve this problem. But this kill switch uses iptables, and I'm not familiar with it. PrivateKey = abcdefghijklmnopqrstuvwxyz0123456789= Mullvad provides one on the following page : OpenVPN installation on Linux. Here’s how the WG config file should look like afterwards: PreDown = iptables -D OUTPUT ! -o %i -m mark ! -mark $(wg show %i fwmark) -m addrtype ! -dst-type LOCAL -j REJECT & ip6tables -D OUTPUT ! -o %i -m mark ! -mark $(wg show %i fwmark) -m addrtype ! -dst-type LOCAL -j REJECT Open the WireGuard config file with any text editors: $ sudo nano /etc/wireguard/wg0.confĪdd the following two lines to the section: PostUp = iptables -I OUTPUT ! -o %i -m mark ! -mark $(wg show %i fwmark) -m addrtype ! -dst-type LOCAL -j REJECT & ip6tables -I OUTPUT ! -o %i -m mark ! -mark $(wg show %i fwmark) -m addrtype ! -dst-type LOCAL -j REJECT To ensure no traffic leaks outside and your real IP address is revealed in case the WireGuard VPN tunnel accidentally goes down, you can set up the Kill Switch which is configured using the PostUp and PreDown WG syntax. General Troubleshooting Billing Passwords Privacy Windows macOS GNU/Linux iPad/iPhone Android Routers Media Players ![]()
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