iptables how to delete rules based on source or destination ip port or just the rule itself

Let's say we have an IP that is dropped by iptables 192.168.20.2

service iptables status|grep 192.168.20.2
184  DROP       all  --  192.168.20.2       0.0.0.0/0           

 

 

Two Ways To Delete The iptables Rule


1.) Delete by the rule number which in our case is 184 from above.

iptables -D INPUT 184


2.) Delete based on the actual rule that we input to iptables

iptables -D INPUT -s 192.168.20.2/32 -j DROP

For example the rule would have been created using iptables -A INPUT -s 192.168.20.2/32 -j DROP so we just do the opposite to delete the rule.


Tags:

iptables, delete, destination, ip, itselflet, grep, input,

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