復制代碼 代碼如下:

if (eregi("ddos-udp",$read)) {
fputs($verbinden,"privmsg $Channel :ddos-udp – started udp flood – $read2[4]/n/n");
$fp = fsockopen("udp://$read2[4]", 500, $errno, $errstr, 30);
if (!$fp)
{
$fp = fsockopen("udp://$read2[4]", 500, $errno, $errstr, 30);

復制代碼 代碼如下:

　　#iptables -A INPUT -p tcp -m tcp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT

　　#iptables -A INPUT -p udp -m udp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT

　　#iptables -A OUTPUT -p tcp -m tcp --sport 1024:65535 -d 8.8.4.4 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT

　　#iptables -A OUTPUT -p udp -m udp --sport 1024:65535 -d 8.8.8.8 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT

　　#iptables -A OUTPUT -p udp -j REJECT

　　#/etc/rc.d/init.d/iptables save

　　# service iptables restart

　　#chkconfig iptables on