Secure Tailscale networks with firewalld

Tailscale provides a handy private network mesh across multiple devices but it needs security just like any other network. šŸ•µ
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Forwarding ports with firewalld

Learn how to forward ports with firewalld for IPv4 and IPv6 destinations. šŸ•µšŸ»
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GRE tunnels with systemd-networkd

Switching to systemd-networkd for managing your networking interfaces makes things quite a bit simpler over standard networking scripts or NetworkManager. Aside from being easier to configure, it uses fewer resources on your system, which can be handy for smaller virtual machines or containers. Managing tunnels between interfaces is also easier with systemd-networkd. This post will show you how to set up a GRE tunnel between two hosts running systemd-networkd. Getting started Youā€™ll need two hosts running a recent version of systemd-networkd.
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