====== iptables ======
===== List =====
sudo iptables -L # list
sudo iptables -t nat -L -v # list nat table
===== Edit =====
sudo iptables -A FORWARD -i wg0 -o wg0 -j ACCEPT # ans Ende der chain (append)
sudo iptables -I FORWARD -i wg0 -o wg0 -j ACCEPT # an den Anfand der Chain
sudo iptables -I 4 FORWARD -i wg0 -o wg0 -j ACCEPT # an 4. Stelle der Chain
===== Delete =====
sudo iptables -t nat -v -L -n --line-number # list nat table rules numbered
sudo iptables -t nat -D POSTROUTING 6 # delete rule from nat table in chain POSTROUTING number 6