Re:Blacknurse – Low bandwidth ICMP firewall attack
by omribahumi on Monday November 14, 2016 @01:16PM
(#12951918)
Ok, then this is definitely a problem with UDP.
But what about TCP only? AFAIK, TCP RST is usually used when a packet is received with no connection. The only place I'm aware of that uses ICMP 3/3 is the REJECT iptables target when the defaults are used.
But what about TCP only? AFAIK, TCP RST is usually used when a packet is received with no connection. The only place I'm aware of that uses ICMP 3/3 is the REJECT iptables target when the defaults are used.