Forward all traffic through a wireguard VPN

• VPN: https://lnvpn.net/

• How to: https://www.wireguard.com/netns/

• Kill Switch with PostUp and PreDown WG syntax https://www.ivpn.net/knowledgebase/linux/linux-wireguard-kill-switch/

• Simple ufw killswitch from https://www.reddit.com/r/WireGuard/comments/bpmssc/comment/envrhu2

    another option is to create 2 bash scripts that make use of ufw.
  
    firewall.sh (change tun0 to what ever your wireguard interface is you can find it with "ifconfig" probably has "wg" in it somewhere)
  
        sudo ufw reset
  
        sudo ufw default deny incoming
  
        sudo ufw default deny outgoing
  
        sudo ufw allow out on tun0 from any to any
  
        sudo ufw enable
  
    And unfirewall.sh
  
        sudo ufw reset
  
        sudo ufw default deny incoming
  
        sudo ufw default allow outgoing
  
        sudo ufw enable
  
    make them both executable with chmod. then when you want the killswitch on "sudo bash firewall.sh" then you can test it by disconnecting from wireguard and ur internet shouldnt be working.
  
    and when you want to turn it off just run unfirewall.sh