Delete a rule by number iptables
Remove rule number 3 from the INPUT chain
iptables -D INPUT 3
more iptables
all 10 commands →
Rate-limit connections
iptables -A INPUT -p tcp --dport 22 -m state --state NEW -m limit --limit 3/min --limit-burst 5 -j ACCEPT
nftables: list all rules
nft list ruleset
nftables: add accept rule
nft add rule inet filter input tcp dport 8080 accept
nftables: flush all rules
nft flush ruleset
List rules with line numbers
iptables -L INPUT --line-numbers -n -v