Block and Allow IP using iptables in RedHat Linux 4.0

[mostafapervez]

Dear Friend

I have blocked below IP by using iptables command in RedHat Linux 4.0.

iptables -A INPUT -s 192.168.0.85 -j DROP

It's now totally blocked and can't get access into web or internal network.

Please let me know how I can un-block that IP, so that it can again starts it's normal operation.

Appreciate, if you would come back at your earliest.


Regards
Pervez

[coopstah13]

i think you can fix your problem just by replacing -A with -D, i'm not sure though

[vishesh]

#iptables -F

flush your iptables entries

[Lazydog]

As stated above replace the '-A' with '-D' to Deklete the rule or if you have not written the iptables file you can 'service iptable restart'.

[pervez]

Dear Friend

Thanks for prompt response.

#iptables -F flush iptables entries & it works well.
but, don't know how to use with the command -A' or '-D'.

Regards
Pervez

[coopstah13]

instead of using

iptables -A INPUT -s 192.168.0.85 -j DROP

use

iptables -D INPUT -s 192.168.0.85 -j DROP

[Lazydog]

I would not use the FLUSH without restarting my firewall. FLUSH removes the rules thus opening your system up.