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interrupted. When the network load balancing automatically detects that the server is unavailable, it can quickly re-assign the Client Communication to the remaining servers. This protection can help you provide uninterrupted services for key business programs. You can increase the number of Server Load balancer instances based on the increase in network traffic
Vaguely or many years ago, was responsible for a relatively large project (China Telecom BDC), load balancing is indispensable. Hardware asked a lot of vendors, software has also tried some influential tools. According to the company at that time, the background of the project and the actual situation, the choice is the hardware scheme, the purchase of equipment is F5
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 n
must be used to meet the needs of a large number of concurrent accesses. Linux Virtual Server (SERVERS,LVS) uses load balancing technology to make multiple servers a virtual server. It provides a cost-efficient solution for adapting to fast-growing network access requirements with a load capacity that is easy to scale. LVS is an open source software that enables
describes the device objects used by Server Load balancer and the network layers of applications (refer to the OSI reference model) and the geographical structure of the application. Software/hardware Load Balancing ()A software Load Balancing solution is to install one or
Not long ago I was in charge of a well-known national manufacturing group's load balancing project. I was deeply touched by the project's application of gslb in a specific environment and learned a lot of related Load Balancing knowledge. Today, let's calm down and think about how to learn a lot through the project. du
uninterrupted service for your critical business processes. You can increase the number of Network Load Balancing servers based on increased network traffic. 4. Network Load Balancing can be implemented on a regular computer. In Windows Server 2003, Network Load
There are two ways to implement the site load, one is to buy hardware to achieve, such as hardware F5 to Citrix Netscalar, these devices are hundreds of thousands of, not the average person to play, the other is to use software to achieve, such as Nginx, Squid This kind has the reverse proxy function The software, this article Nginx installs realizes the load. F
you provide uninterrupted services for key business programs. You can increase the number of Server Load balancer instances based on the increase in network traffic. 4. network load balancing can be achieved on normal computers. In Windows Server 2003, network load balancing
The most commonly used is F5 and Citrix NetScaler Load balancing is divided into global load balancing and local load balancing. Load
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
1. OverviewThe first two times in this article, we have been talking about the construction of Nginx + keepalived. At the beginning of this article, we are going to honor the promise of the previous article, the following two articles we will introduce the Nginx + keepalived and LVS + keepalived to build a highly available load layer system. If you do not know about Nginx and LVS, see my previous two articles, "Architecture Design:
Comparison of haproxy lvs nginx Load Balancing For the software that implements load balancing, let's take a look at it in detail. In terms of performance and stability, LVS is the best, basically reaching 60% of the performance of F5 hardware equipment, and other 10% are a
The company last year on the F5, easy to use is good, but the cost is too high, so recently has been studying the soft load balancing this together, it happened early this year Google Open source seesaw, let oneself can bypass many detours. This is a summary of the load balancing
Load BalancingMainstream open source software: LVS, keepalived, Haproxy, Nginx and so on;OSI Layer: LVS (4), Nginx (7), Haproxy (4, 7);The Keepalived load balancing function is actually the LVSLVS Load balancer can distribute other ports than 80, such as MySQL, while Nginx only supports HTTP, https, mail;LVS Introducti
cactiAdvantages of LVS:Good performance, close to hardware equipment network throughput and connection load capacity.LVS's Dr mode, which supports load balancing over a WAN. None of this other load balancing software is currently available.Disadvantages:More heavy. Another
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
1. OverviewThe first two times in this article, we have been talking about the construction of Nginx + keepalived. At the beginning of this article, we are going to honor the promise of the previous article, the following two articles we will introduce the Nginx + keepalived and LVS + keepalived to build a highly available load layer system. If you do not know about Nginx and LVS, see my previous two articles, "Architecture Design:
balanced external only need to provide an IP address (or domain name); Third, the service is not interrupted when one or several servers in the Network Load Balancing are unavailable. Network Load Balancing automatically detects that the server is unavailable and can quickly reassign client traffic to the remaining s
domain name. 3. Services are not interrupted if one or more of the servers in the Network Load Balancing are unavailable. Network Load Balancing automatically detects that the server is unavailable and can quickly reassign client traffic to the remaining servers. This protection will help you provide uninterrupted se
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