Re: FreeBSD DDoS protection
Fleuriot Damien <[email protected]> Tue, 12 Feb 2013 18:46:26 +0100
| Newsgroups | gmane.os.freebsd.isp |
|---|---|
| Message-ID | <[email protected]> |
On Feb 12, 2013, at 6:34 PM, [email protected] wrote: > As my response stated filter ICMP except where necessary. I can state coming from a mitigation background that there are ways to safely do it without causing any issues. However, yes, you can still filter ICMP and remain compliant with an example pf rule like: > icmp_types = "{ echoreq, unreach }" > breaks traceroute :( > But in real life situations under constant attacks, blocking ICMP can be a large part of keeping businesses online. > YMMV but I'd advise rate limiting instead of plain blocking. _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-isp To unsubscribe, send any mail to "[email protected]"