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VPN Provider with Working Kill Switch?
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VPN Provider with Working Kill Switch?

Anyone know? Unreliable ISP with intermittent disconnection always expose the original IP, the provider I'm with right now is practically useless.

Comments

  • Can you test and write about protonvpn? A brand of protonmail...

    Thanked by 1spitz
  • Oh, I didn't know protonmail has a vpn service.
    Thanks for the info!

  • I personally use Windscribe and they have a killswitch, but I guess every major provider has a comparable feature in their client

  • YmpkerYmpker Member
    edited November 2017

    I have tried various vpn kill switch providers and none were really reliable. I ended up using http://www.guavi.com/vpncheck_free.html with openvpn

  • carloshmmcarloshmm Member
    edited November 2017

    If you are using GNU/Linux you can set your firewall to allow only traffic that goes through your VPN.
    This is my current iptables settings:

    -P INPUT DROP
    -P FORWARD DROP
    -P OUTPUT DROP
    -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
    -A INPUT -i lo -j ACCEPT
    -A INPUT -s "LOCAL NETWORK ADDRESS RANGE (ex: 192.168.0.0/16)" -j ACCEPT
    -A INPUT -i tun+ -j ACCEPT
    -A OUTPUT -o lo -j ACCEPT
    -A OUTPUT -d "LOCAL NETWORK ADDRESS RANGE (ex: 192.168.0.0/16)" -j ACCEPT
    -A OUTPUT -d "VPN's DNS" -j ACCEPT
    -A OUTPUT -d "VPN's DNS" -j ACCEPT
    -A OUTPUT -p udp -m udp --dport "PORT USED BY OPENVPN TO COMMUNICATE WITH YOUR VPN" -j ACCEPT
    -A OUTPUT -o tun+ -j ACCEPT
    -A OUTPUT -j REJECT --reject-with icmp-net-unreachable
    

    I'm using these settings on my local computer, but if you are going to use it on a remote system via SSH you need to open INPUT/OUTPUT ports for your SSH connection as well, ex (SSH on port 22):

    -A INPUT -p tcp --dport 22 -j ACCEPT
    -A OUTPUT -p tcp --sport 22 -j ACCEPT
    

    Related info:
    https://wiki.archlinux.org/index.php/Private_Internet_Access#Internet_.22kill_switch.22
    https://wiki.archlinux.org/index.php/simple_stateful_firewall

    --edit

    I forget to say that in the case you are going to use a VPN connection remotely you will need to force incoming traffic to go through your default gateway (your original IP). To do this on GNU/Linux you need to edit your kernel routing table to force all incoming connections to reach your default gateway, I'm using these settings on the kernel routing table:

    /usr/bin/ip rule add from "YOUR IP ADDRESS" table 128
    /usr/bin/ip route add table 128 to "YOUR IP ADDRESS"/32 dev "THE GATEWAY NAME OF YOUR IP (ex: eth0)"
    /usr/bin/ip route add table 128 default via "GATEWAY ADDRESS (GET WITH COMMAND: netstat -r -n)"
    

    Related info: https://serverfault.com/questions/659955/allowing-ssh-on-a-server-with-an-active-openvpn-client

  • Unfortunately I'm on Desktop Windows 7.

  • I am using proxifier, looking to buy it but they don't offer any discount, you can test it too, i am just a user and I think it's working as advertised but who knows...

    If there is anyone over there knows proxifier developers convince them to make a bf deal on let, thanks :)

  • Bumping this thread

    @Ympker

    I have tried various vpn kill switch providers and none were really reliable.

    Have you tried IVPN?

    https://www.ivpn.net/knowledgebase/165/Do-you-offer-a-kill-switch-or-VPN-firewall.html

    They have a detailed bragging about their firewall and their price is expensive. Is this true or just marketing gimmick?

  • Perfect-Privacy has a working Killswitch

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