Iptables Unblock/delete

Display the List existing chains Entry

iptables -L –n

iptables -L -n -v

iptables -L chain-name -n -v

iptables -L spamips -n –v

 

Display List existing chains with line number

iptables -L INPUT -n --line-numbers

iptables -L OUTPUT -n --line-numbers

 iptables -L spamips -n -v --line-numbers

 

Delete Rule from IPTABLES using line number

iptables -D INPUT linunumber

Example : iptables -D INPUT 11

 

You can also use the Below syntax to delete / unblock an IP 

iptables -D INPUT -s ipaddress -j DROP