dns amplification attack

Recently in doing OpenWrt platform, DNS use is DNSMASQ, but through the board to the Internet, the PC's DNS is set to board the time, found that Baidu, etc., but the company mailbox can not open. The domain name of the company mailboxxx-xx-notes.xxx.com.cn form, so the DNSMASQ log opened to see the next. Finally found the problem.How to open DNSMASQ log1. Find/etc/dnsmasq.confIn the OpenWrt system, dnsmasq.

-refresh times$uri = $_server['Request_uri']; $checkip=MD5 ($IP); $checkuri=MD5 ($uri); $yesno=true; $ipdate=@file ($file);foreach($ipdate as$k =$v) {$iptem= substr ($v,0, +); $uritem= substr ($v, +, +); $timetem= substr ($v, -,Ten); $numtem= substr ($v, About); if($time-$timetem $allowTime) { if($iptem! = $checkip) $str. =$v; Else{$yesno=false; if($uritem! = $checkuri) $str. = $iptem. $checkuri. $time."1";ElseIf ($numtem 1) .""; Else { if(!file_exists ($fileforb

After a series of recent retaliatory attacks caused by the closure of the file sharing website Megaupload, Anonymous's Denial-of-Service "Cannon" has greatly reduced the number of shells fired later. Although Anonymous members intend to break the INTERPOL website in February 28 (mainly through the online version of the "low-track Ionic Gun" Denial-of-Service tool ), moreover, some vulnerable websites (including most recently websites affiliated with Panda Security) have been destroyed, and the

Now some small software, control the Update method is generally HTTP read file, determine whether the read text is equal to the version numberOr to determine the QQ nickname, network nickname and so on. above has its own shortcomings, here is recommended a DNS control software updates the backdoor, anti-DDoS. #include strcpy (Szip,inet_ntoa (* (LPIN_ADDR) * (PPADDR));//printf ("%s\n", Szip);}} WSACleanup (); if (strcmp (Szip, "1.0.3.1")//can write sof