This is the exact script I use to install tailscale on my VPN server
Installing Tailscale
curl -fsSL https://tailscale.com/install.sh | sh
Enable IP forwarding
echo 'net.ipv4.ip_forward = 1' | sudo tee -a /etc/sysctl.conf
echo 'net.ipv6.conf.all.forwarding = 1' | sudo tee -a /etc/sysctl.conf
sudo sysctl -p /etc/sysctl.conf
Advertise subenets and exit node
tailscale up --advertise-exit-node --advertise-routes=192.168.0.0/24,192.168.2.0/28,192.168.5.0/24,192.168.10.0/24
Running a lot of DoH and DoT within my devices and my network