vps ddos

The heart of the people must not be. There are always some boring or intentional people on the Internet. I don't have much to say. On dry Goods, configure VPS APF to prevent small traffic DDoS attacks. For large traffic DDoS attacks, the need for the computer room hardware firewall, the internal VPS may also be unable

Connect VPS Enter First command Netstat-anp |awk ' {print $} ' |sort|uniq-c |sort-rn Here we look at Syn_recv these, see his connection number is not high, good hundreds of, it is possible to be DDoS The next trace is from which IP emits syn directive: Netstat-an | grep SYN | awk ' {print $} ' | Awk-f: ' {print $} ' | Sort | uniq-c | Sort-nr | More Next, keep looking, input instructions. Netstat-ntu |

DDOS is crazy recently The module mod_evasive in Apache that prevents DoS attacks. In lighttpd, mod_evasive can also be used to limit the number of concurrent connections to prevent DDOS attacks.In lighttpd. add the following code to the conf file to enable mod_evasive. This restriction is not enabled for downloading zip files, mp3 files, and other files. Otherwise, the website cannot be connected when the

April 19, 2010 Morning |VPS DetectiveObjectiveThe internet is as full of rivalry as the real world, and the site has become the most headache for webmasters. In the absence of hard defense, looking for software replacement is the most direct method, such as with iptables, but iptables can not be automatically shielded, can only be manually shielded. What we're going to talk about today is a software that automatically shields

/local/ddos/$ (date +%y)/$ (date +%m)/"Mkdir-p $CNTS _logCnts_log= "$CNTS _log$ (Date +%y%m%d). LOG"while read line; Todocurr_conn=$ (echo $line | cut-d ""-F1)curr_ip=$ (echo $line | cut-d ""-F2)If [$CURR _conn-lt $NUM _connections]; ThenBreakFiecho "$CURR _ip with $CURR _conn connections in ' Date '" >> $CNTS _logDone How do I verify that DDoS attacks are being exploited? Perform: Netstat-ntu | awk ' {

is displayed. The following are the results of my own VPs test: Li88-99 :~ # Netstat-NTU awk '{print $5}' Cut-D:-F1 sort uniq-C sort-n1 114.226.9.1321 174.129.237.1571 58.60.118.1421 Address1 servers)2 118.26.131.783 123.125.1.2023 220.248.43.1194 117.36.231.2534 119.162.46.1246 219.140.232.1288 220.181.61.312311 67.215.242.196 The number of connections per IP address, IP address, or IP address is normal. If the number of connections is hundreds

ObjectiveThe internet is as full of rivalry as the real world, and the site has become the most headache for webmasters. In the absence of hard defense, looking for software replacement is the most direct method, such as with iptables, but iptables can not be automatically shielded, can only be manually shielded. What we're going to talk about today is a software that automatically shields DDoS attackers ' IPs: DD