reverse proxy ddos protection

find low-level DDoS is not working, they will increase the attack strength. At the beginning of our official website, the average number of concurrent only thousands of, then increased to an average of 16,000 concurrent, up to 70,000 concurrent, so that the CPU monitoring on top of the effect, because the w3wp.exe restart, in a very short period of time the CPU to reach 100%. Number of concurrent connections monitored at that time: CPU usage and

From the 07 of the Estonian DDoS information war, to this year Guangxi Nanning 30 internet cafes suffered from DDoS ransomware, and then to the Sina network suffered a DDoS attack can not provide external services for more than 500 minutes. DDoS intensified, attacks increased significantly, the attack traffic is also s

{ limit_conn_zone $binary_remote_addr zone=addr:10m; //触发条件 ... server { ... location /download/ { limit_conn addr 1; // 限制同一时间内1个连接，超出的连接返回503 } } Three. Whitelist settingsThe Http_limit_conn and Http_limit_req modules limit the number of concurrent and requests in a single IP unit time, but if Nginx is preceded by a load balancer or reverse

Second, nginx Why to use the reverse proxy 1, convenient server distribution expansion There is a limit to the ability of a single server to handle client requests, and if the request is too large, the server is busy, so using multiple servers to share the user's request processing, these servers provide the same service, no difference for users. Then a load-balancing device is needed to distribute the

Reprint how to build a Web server using Nginx to build a reverse proxy server: http://blog.csdn.net/w13770269691/article/details/6977727Introduction: Recently, the company has a server suffered a DDoS attack, traffic above 70M, because the server hardware configuration is high, so do not need a DDoS hardware firewall.

networks, If you also need to consider DDoS and CC defense capabilities, the server's machine costs will increase dramatically.At this point, you can consider the reverse proxy technology, the choice with hard defense, the configuration is lower than the service end of a lot of cheap machines, as a reverse

Resources to use: Nginx Primary server One, Nginx standby server, use keepalived for downtime switching. Tomcat server two, by Nginx reverse proxy and load balancing, here can build server cluster. Redis server, used for session separation and sharing. Nginx Primary server: 192.168.50.133 Nginx Standby server: 192.168.50.135 Tomcat Project Server 1:192.168.50.137 Tomcat Project Server 2:192.168.50.139 Redis

to view the website to determine the working status of the Web server. After installation, read the web Service Information on the server.root@server1 [/home]# ip a | grep -i eth03: eth0: Nginx will create a VM for any newly created account in cPanel. Through these simple steps, we can configure Nginx as a reverse proxy on a CentOS 7/cPanel server.Advantages of Nginx as a

Web site to determine the working status of the Web server. After you install, read the Web service information on the server.[Email protected] [/home]# IP A | Grep-i eth03:eth0: Nginx will create a virtual host for any account that is newly created in CPanel. With these simple steps, we are able to configure Nginx as a reverse proxy on a CentOS 7/cpanel server.the advantages of Nginx as a

Reverse proxy can be divided into two types from transmission: Synchronous mode (apache-mod_proxy and squid) asynchronous mode (Lighttpd and nginx) Synchronous transmission:The browser initiates a request, and the request is immediately forwarded to the background, so a channel is established between the browser and the background. This channel always exists when the request is initiated until the request

ObjectiveReverse proxy refers to the way users access the server backend by proxy server through the same server. (See Baidu Encyclopedia https://baike.baidu.com/item/Reverse Proxy/7793488)?Application scenario of Nginx reverse Proxy1, to achieve external network users acces

instructions. All checks pass, even if healthy, the server is marked as active, if a match fails, for example, Content-Type = text/json or if status = 201 it is counted as failed, the server is unhealthy and is marked inactive. DNS Re-parsing Nginx plus starts DNS parsing and automatically caches resolved domain names and IPs, but in some cases it needs to be re-parsed, which can be done using the following directives: Resolver 127.0.0.11 valid=10s;upstream Service1 { zone Service1 64k; S

I will share my experiences in setting up anti-leech protection. If I use feresers to set anti-leech protection after nginx reverse proxy, all file targeting will fail. After a test, it is found that you only need to manually set proxy_pass when the if statement is passed. In this case, the location/{} configuration se