global load balancing dns

repeatedly, the algorithm is able to flow (session) to ensure that traffic from the same client can be processed all the time on the same server.6.URL HashAn algorithm that forwards requests sent to the same URL to the same server by managing a hash of the client's request URL information.The method of load balancing algorithm (DNS->数据链路层->IP层->Http层) 1.

, the user's CGI program is responsible for tasks that avoid location loops.2. DNS-based load balancing (multi-host Single Domain Name load)Server Load balancer Based on server software needs to change the software, so it is often not worth the candle. Server

way, and the server cluster software implemented in this way is less. In some cases, CGI (including the use of fastcgi or Mod_perl extensions to improve performance) can be emulated to share the load, while the Web server remains simple and efficient, and the task of avoiding the location cycle will be borne by the user's CGI program. 2. Load balancing of Base

device in front of the cluster to achieve traffic distribution.Load Balancing (Balance), which means that load (work tasks, access requests) are balanced and distributed across multiple operating units (servers, components) for execution. is the ultimate solution for high-performance, single-point-of-failure (high availability), scalability (horizontal scaling).This article is the first article on

optimized load distribution policy to achieve the purpose of evenly distributing the load. Keywords: server load balancer, network address translation, FreeBSD 1. Introduction The rapid growth of the Internet allows the multimedia network server to rapidly increase the number of accesses, and the server must be able to provide a large number of concurrent ac

protocols, such as the Outlook Web App. So on the load balancer this layer, no longer special need for the load office weighing products to support client affinity.Let me say a few more words, from the level of the mailbox connection to the level of the Web connection request. As mentioned earlier, older versions of Exchange have problems requiring clients to re-authenticate without client affinity support

service provision. Because the performance of a single server is always limited, multi-server and load balancing technologies must be used to meet the needs of a large number of concurrent accesses. The earliest load balancing technology was implemented through DNS. In

Several implementation ways of Web load balancingSummary:Load Balancing (Balance) is an application of cluster technology (Cluster). Load balancing can spread the work tasks across multiple processing units, increasing the concurrency processing power. The most common application for

number of users that can be supported by the cluster system and the time required to process a request. 　　 Among the many existing methods of balancing server load, the following two methods are widely studied and used: 　　 DNS Load Balancing Method Rr-

Client1 and Client2 are as follows: server { listen 80; server_name www.zzl.com; OK. After setting, load your nginx reload nginx-s reload. This is the success !!! How to distribute multiple nginx instances and achieve Load Balancing for large domestic websites? This information is basically incomplete. Let me talk about a basic architectu

of the application itself. Stability is an effective measure of many factors affecting system performance, including the maximum number of users that can be supported by the cluster system and the time required to process a request. Among the many existing methods of balancing server load, the following two methods are widely studied and used: DNS

rich set of features for DNS integration that has become increasingly popular. Other popular options are the use of distributed and replicable Key-value storage, such as ETCD in which services can register themselves. Apache Zookeeper will also be aware of the need for such a group of people. In this article, we mainly deal with some of the mechanisms provided by Docker swarm (Docker in swarm mode) and demonstrate the service abstraction we explored

provision. Because the performance of a single server is always limited, multi-server and load balancing technologies must be used to meet the needs of a large number of concurrent accesses.The earliest load balancing technology was implemented through DNS. In

convenience of the experiment, I first changed the advanced sharing settings and firewall settingsInstall Network Load Balancing on NLB1 and NLB2 respectivelyafter two nodes are installed, configure Network Load Balancing on NLB1, node one configuration is completed, then node two is added to the node one NLBCreate a

1.http REDIRECT Load BalancingThe HTTP redirect server is a normal application server whose only function is to compute a real Web server address based on the user's HTTP request and write the Web server address to the HTTP redirect Response (location header)The status code is 302, which is returned to the user's browser. Both the load server and the Web server are the IP of the public network.This kind of

The difference between four and seven layers of load balancing four layersThe so-called four layer is the fourth layer in the ISO reference model. Four-layer load balancing is also called four-layer switch, it is mainly through the analysis of IP layer and TCP/UDP layer of traffic implementation based on IP plus port

This article mainly introduces the related functions of Nginx Plus, which spans the various versions of Nginx plus R5/R6/R7/R9. The more advanced usage of Nginx reverse proxy and load balancing is involved. Mainly include: HTTP load balancer, HTTP long connection, TCP and UDP load