iptables allow one ip address


To allow one trusted IP address to access all incoming packets add following line in iptables-precursor:

iptables -A INPUT -s -j ACCEPT

where is the IP address I would like to allow, change the IP address as per your requirement.

After adding above line run following commands to get it updated:

$ source iptables-precursor

$ iptables-save > iptables

In above commands I used relative pats for iptables-precursor and iptables.

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