global load balancing dns

Basic concepts of load balancing Load balancing is a computer network technology used to distribute loads across multiple computers (computer clusters), network connections, CPUs, disk drives, or other resources to achieve optimal resource usage, maximize throughput, minimize response time, and avoid overloading.

initial basic design concept for using Server clusters to achieve load balancing. The new solution is to translate different IP addresses of multiple server NICs into a Virtual IP Address through LSANT (Load Sharing Network Address Transfer), so that each server is always in the working state. The work originally needed to be done with a minicomputer was complet

Terminal Services Session broker (TS session Broker) is included in Windows Server (R) 2008 Standard, Windows Server 2008 Enterprise, and Windows Server 2008 Datace Nter, it can track disconnected sessions on a Terminal server farm and ensure that users are reconnected to these sessions. In addition, the use of TS session Broker can also load-balance sessions between terminal servers in the farm. This feature is provided by the TS session Broker

idea is to use the Server Load balancer function of the reverse proxy server. The varnish mentioned in the previous article supports this function and view the configuration file: Backend web1 {. Host = "192.168.0.77 ";. Port = "8081 ";}Backend web2 {. Host = "192.168.0.77 ";. Port = "8082 ";}Director lb round-robin {{. Backend = web1;}{. Backend = web2;}}Sub vcl_recv {Set req. backend = lb;Return (pass );}In this configuration file, we have deployed

Protocol shunting for outgoing link load balancing in the previous article "outgoing link load also needs intelligent DNS resolution" http://www.bkjia.com/net/201206/136614.html This section describes how to balance the distribution of carrier addresses by controlling DNS re

The design of the balance algorithm directly determines the performance of the cluster in load balancing, the design of the poor algorithm, will lead to the load imbalance of the cluster. The main task of the general balancing algorithm is to decide how to select the next cluster node and then forward the new service r

How to use HAProxy to Set up MySQL Load balancing Dec 2, MySQL, Scaling, Server optimization Ubuntu, Debian PreludeHAProxy is an open source software which can load balance HTTP and TCP servers. In the previous article on HAPROXY we configured load balancing for HTTP and in

I. The concept of LVS LVS (Linux Vsan): Linux virtual server; LVS is a load balancing device. It does not provide whatever service. When the user requests to be here. It is the service that forwards the customer's needs to the backend to truly deliver the service. So, the backend service is called real server; LVS is divided into two sections, the previous section called IPVSADM (Command-li

that avoid Location loops. 2. DNS-Based Load Balancing Server Load balancer Based on server software needs to change the software, so it is often not worth the candle. Server Load balancer should be done out of the server software to take advantage of the advantages of exi

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I. Cluster Technology Overview 1. Cluster type Both clusters have at least two node servers. In addition, they provide only one access portal, which is equivalent to a large computer. According to the target differences of the cluster, there are three types. Server Load balancer cluster: To improve the application system's response capability, process as many access requests as possible, reduce latency, and achieve full-day performance with high concu

Link load balancing can actually do this. Enterprises generally lease multiple ISP links to avoid network availability risks caused by single ISP link failure and solve network access problems caused by insufficient network bandwidth. How to properly use multiple ISP links does not cause resource waste, but also improves the quality of network services. This article will focus on analyzing several methods

$remote _addr; Proxy_set_header x-forwarded-for $proxy _add_x_forwarded_for; Proxy_pass http://$geo. Server$request_uri; } error_page 502 503 504/50x.html; Location =/50x.html {root html; } Server {Listen 8080; server_name 192.168.6.121; Location/{root HTML; Index index.html index.htm; } } } 3. Test, open the browser input on test machine 1http://192.168.6.121Show Because the test machine 1 IP address for 192.168.6.2 according to Nginx configuration,

Multiple ADSL load balancing in Linux Preface: Many tools can be used to implement the functions bundled with ADSL, such as RouteOS, vyatta, and panabit. However, my company usually uses many Linux systems. I was inspired by RouteOS and verified whether Linux can be implemented. After searching for information on the Internet, it is found feasible. Today, we finally have time to write this thing. Speak less

"How the border routers implement Network Load Balancing," we need to understand several relevant knowledge points about NAT, border routers, and Network Load Balancing. The primary purpose of network address translation (NAT) is to resolve IP address shortages, and to achieve TCP

used as MySQL, mail or other non-web load balancing, we often use it as a MySQL (read) load balancing;Four, with a strong monitoring server status of the page, the actual environment we combine Nagios Mail or SMS alarm, this is also I like it one of the reasons;Five, Haproxy support virtual host. When doing a

At present, the global application of a wide range of load balancing equipment for the United States F5. F5 in China in the end of 2000, in the domestic industry, F5 load balancing products have become the mainstream load

) clusters High Performance Computing Cluster hp:high-performance (HPC) clusters Grid Compute Grid Computing Iii. detailed definitions of various clusters ⑴, load Balanced cluster-lb When a load-balanced cluster is run, the workload is distributed to a set of servers on the back end, typically through one or more front-end load balancers, to achieve an entir