Can anyone introduce a good manual for learn Firewalld?
In below commands what does "INPUT_direct" mean? How about numbers?
Code: Select all
# firewall-cmd --direct --add-rule ipv4 filter INPUT_direct 2 -p tcp --dport 22 -m state --state NEW -m recent --set
# firewall-cmd --direct --add-rule ipv4 filter INPUT_direct 3 -p tcp --dport 22 -m state --state NEW -m recent --update --seconds 30 --hitcount 4 -j REJECT --reject-with tcp-reset