Re: Force TCP socket disconnect on imap login failure?

On 05-25-2022 11:28 am, Hippo Man wrote: In my case, that is not occurring. After issuing the iptables DROP command, the client can continue to send more and more login attempts. Only when the client disconnects does the block of the socket seem to work for that IP address. I continue to see numerous instances of this behavior.

Having this rule

-A INPUT -p tcp -m state --state RELATED,ESTABLISHED -j ACCEPT

before the drop would have that behavior