FYI:<br><br>I ran across a Linux server getting hit by an apparent DoS attack, which caused the server to be very slow. Looking at dmesg, there was a lot of "TCP: Treason uncloaked..." messages.<br><br>A yum update got the kernel update on these (CentOS 5.7), which fixed the problem.<br>
<br>If you do some googleing, you can also find info on blocking this attack with iptables.<br><br>-dc<br>