Iptables - как удалить правило по CHAIN и номеру

Посмотреть все правила по цепочке и номерам:

# iptables -L --line-numbers
Chain INPUT (policy ACCEPT)
num  target     prot opt source               destination
1    DROP       all  --  6.196.248.6          anywhere 

Chain FORWARD (policy ACCEPT)
num  target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
num  target     prot opt source               destination
1    ACCEPT     tcp  --  anywhere             anywhere             multiport dports smtp,urd,submission owner GID match mailman
2    ACCEPT     tcp  --  anywhere             anywhere             multiport dports smtp,urd,submission owner GID match mail
3    ACCEPT     tcp  --  anywhere             localhost.localdomain  multiport dports smtp,urd,submission owner UID match cpanel
4    ACCEPT     tcp  --  anywhere             anywhere             multiport dports smtp,urd,submission owner UID match root

Удалить правило по CHAIN и номеру:

# iptables -D INPUT 1