dns dos attack

gradually rise to 100%, and then crash panic; When the above cycle is reduced to about 500, the CPU utilization rate gradually increased to 100%, again instantaneous restore to a stable state, memory use from about 130M up to 230M, and open the 192.168.56.106/12.html this page, The link inside the address bar also becomes: http://192.168.56.106/0123456789101112131415161718192021 ... 494495496497498499 As you can see, as you add new records to the history stack by looping, the page will refres

Like smurf Currently, many DNS servers support EDNS. EDNS is an extended DNS mechanism, which is introduced in RFC 2671. Some options allow the DNS to reply to more than 512 bytes and still use UDP, if the requestor points that it can handle such a large DNS query. Attackers have used this method to produce a large am

Simple anti-DOS attack module Mod_doserasive is Apache's third-party module that determines whether an IP access is too fast over a period of time if it returns 403 errors too soon Download Module http://bbs.chinaunix.net/attachment.php?aid=Mzc4OTQ4fGVjYzA2YzJjfDEzODE3NDQyMjZ8MjkyNDk2MDR8MTY4OTcwNA%3D% 3dfid=232 1. The installation configuration of the module is as follows [Root@localhost Tar XF mod_eva

Article title: DoS attack vulnerability caused by Ubuntu8.04LTS exposure. Linux is a technology channel of the IT lab in China. Some basic categories, including desktop applications, Linux system management, kernel research, embedded systems, and open source, were found in the Linux kernel of Ubuntu 8.04 LTS yesterday. This vulnerability affects not only Ubuntu8.04 LTS, but also its derivative versions Kubu

hundreds of thousands of users are redirected to a trap site set up by hackers by embedding a server with a cache poisoning attack. The severity of this issue is related to the number of users who use domain name requests. In this case, hackers who do not have a variety of technologies can cause a lot of trouble, so that users can tell others their online banking account passwords and online game account passwords in a confused manner. In this way, t

index.php Copy Code code as follows: $ip = $_server[' remote_addr ']; ?> Ip: Time: Port: After initiating of the DoS attack, please wait while the browser loads. function.php Copy Code code as follows: //================================================= PHP DOS v1.8 (possibly stronger Flood strength) Coded by EXE //========

IP 92. XX. xx.148.20.50> XX. XX.53: 23600 + [1au] ANY? Isc.org. (36) 07:39:53. 291822 IP 158. XX. XX.238.13616> XX. XX.53: 56854 + [1au] ANY? Isc.org. (36) 07:39:53. 291850 IP 158. XX. XX.238.13616> XX. XX.53: 56854 + [1au] ANY? Isc.org. (36) 07:39:53. 291860 IP 158. XX. XX.238.13616> XX. XX.53: 56854 + [1au] ANY? Isc.org. (36) 07:39:53. 291869 IP 158. XX. XX.238.13616> XX. XX.53: 56854 + [1au] ANY? Isc.org. (36) 07:39:53. 291877 IP 92. XX. XX.148.56278> XX. XX.53: 23600 + [1au] ANY? Isc.org. (

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.

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

-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

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