Basic nftables guide
What is nftables? Reading the wiki we learn that nftables is the firewall of the linux kernel. Being the succesor of iptables, the great. Nftables is available on kernel version 3.13 or newer so keep that it mind Why nftables? It is true that there are firewall front ends like firewalld or ufw that may be easier to understand but we need to understand that they are running nftables on the background....