Re: Rejecting packets from a given domain

"H.K. Kingston-Smith" <HKK-S@xxxxxxxxx> wrote in message
news:pan.2008.04.14.22.21.15@xxxxxxxxxxxx
I am getting a few attempts from the hinet.net domain to have
email relayed through my email server. Since my email server requires
authentication, such attempts never get anywhere. However, they do
clutter my logs.

Would it be possible to have an IP tables rule such that any
packets from this domain, addressed to a given port, are rejected without
further ado?

NO, but if you're using sendmail, you may kill the email there by domain.

To deny all their IP's, what you really need to do is find out what their
AS# is then use a BGP looking glass to see which IP ranges they route for.


.

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