Sahil Tandon <[EMAIL PROTECTED]> wrote: > Jos Chrispijn <[EMAIL PROTECTED]> wrote: > > > I recently got attacked with some dsl subscribers of this (imaginary) > > some.net domain. > > > > These subscribers present themselves as [ip address.dynamic.some.net]. > > Postfix SMTP server: errors from 66-66-66-166.dynamic.some.net > > [66.66.66.166]
One more thing: I use the following PCRE to block dynamic-looking IPs at SMTP and it really isn't resource intensive. /\d+([-\.]\d+){3}/ REJECT Generic hostnames prohibited. -- Sahil Tandon <[EMAIL PROTECTED]> _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"