[LINUX_Newbies] help with iptables

 

Hi, I am taking a class on Linux networking and I am studying using iptables as firewalls. I am having problems when setting the default policy. When I type iptables -P INPUT DROP the lab server hangs. I cannot ctrl Z, ctrl C or anything to get it to respond. I have to revert the VM firewall server. I think I am telling the server to DROP ALL input and not just what isn't a iptable match. Do I need to tell it the the INPUT DROP is for the nics, eth0, eth1, eth2?

Could really use a point in the right direction.

Thanks

David

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