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sharing my simple wireguard kill-switch for Linux
(lemmings.world)
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this post was submitted on 09 May 2024
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Linux
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It doesn't apply to Linux unless you do split tunnel, which no commercial VPN configs use, because it doesn't make sense to
why is a split tunnel relevant? I thought all VPNs are vulnerable unless they use a firewall like I do, or network namespaces.
At least the way I understand it, a normal VPN redirects your internet traffic to instead go through a virtual network interface, which then encrypts and sends your traffic through the VPN. This attack uses a malicious DHCP server to inject routes into your system, redirecting traffic to the attacker instead of towards the virtual network interface.