ip load balancer

Reprint: http://www.zyan.cc/f5_big_ip/In the recent comparison of testing the performance of F5 big-IP and Citrix NetScaler load balancers, write this article to document the common application configuration methods for F5 big-IP.Currently, many vendors have launched a load balancer dedicated to balancing server

layer-2 switch or a layer-3 Router The basic function of a vswitch is to receive data packets on the receiving port, select the output port, and send the data packets. How to select an output port depends on the type of the switch. The L2 Switch uses the MAC address of the data link layer to determine the output port of the data packet. A layer-3 Switch, that is, a router, uses network layer information to determine the output port of a data packet. When the

1 , LVS , TUN IntroductionLVS is a Linux Virtual Server in the actual environment, often as b/S structure of the network application in the load balancer to use, working in 7 Layer network model, the network layer, which is usually said IP layer, because the data is processed in Linux The kernel state is complete, so the relative reverse proxy server, the perform

access the server normally.　　 DNS Server Load balancer uses a simple round-robin load algorithm, which does not distinguish between servers, does not reflect the current running status of servers, and cannot allocate more requests to servers with better performance, client Requests may even be concentrated on a server.　　 Assign an Internet

/octet-stream;Sendfile on;Keepalive_timeout 65;upstream Web1 {Server 192.168.1.101:80 weight=1 max_fails=2 fail_timeout=30s;Server 192.168.1.102: weight=1 max_fails=2 fail_timeout=30s;}#web1 Load Module name (custom).# Weight weights, the higher the value the greater the priority.#max_fails the maximum number of failures, the list of loads is excluded if the host fails to connect two consecutive times.#fail_timeout the wait time for the request to fai

Nginx load balancer on varnish backend, backend TOMCA get client real IP1. setting Nginx configuration fileFirst of all to determine the Nginx load balancing, installed in the installation of the Http_realip_module.View method:/usr/local/nginx/sbin/nginx-vConfigure nginx.confVim/usr/local/nginx/conf/nginx.confJoin Set_real_ip_from 192.168.88.131;Reload Nginx:/usr

and server systems by protecting Server clusters from various types of DoS attacks. The advent of the Internet has brought a lot of new applications and services: Web, DNS, FTP, SMTP and so on. Fortunately, it is very easy to differentiate and process the Internet traffic. Because the Internet has a large number of clients requesting specific services, and each client can be identified by IP addresses, this makes it feasible to distribute the

briefly introduce how some data forwarding functions of layer 2nd and layer 3rd in the OSI model play a role in Server Load balancer. First, we know that a MAC address provides a unique identifier for the hardware throughout the network. At the same time, an IP address uniquely identifies a host. In a switch, if a port is responsible for receiving data pa

Nginx Server Load balancer configuration instance details, nginx Server Load balancer instance First, let's take a brief look at what Server Load balancer is. Simply understanding what it means literally can explain that N servers

. Both the WEB and the WEB are connected to that database, so that the two WEB contents are synchronized, then load the two WEB servers. below is my COPYNetwork Load Balancing allows clients to access the cluster with a logical Internet Name and virtual IP address (also known as the cluster IP address), while keeping t

can implement some shunting policies for http applications, such as targeting domain names and directory structures;2. Nginx has little dependence on the network. Theoretically, it can be pinged to implement the load function;3. Nginx installation and configuration are relatively simple and easy to test;4. It can also handle high load pressure and stability. Generally, it can support more than 10 thousand

Recently want to be able to configure load balancing, in the virtual machine above, but the Internet to find a lot of information is fragmented, for people who do not know, a lot of not enough detail, recently finally done, the specific steps to write down, convenient for you to read the studyThis experiment requires the installation of Nginx if not installed, please refer to:Linux installation nginx:http://www.cnblogs.com/aspirant/p/6714548.html(1) O

Both LVS and Nginx can be used as multi-host load solutions. They have advantages and disadvantages. in the production environment, you need to analyze the actual situation and make use of it.First of all, I would like to remind you that technology is not a cloud, and my cloud is your cloud. At the same time, we should not be too conservative, too confident in the old method and wait for others to help you with the advance test. It is a good habit to

Build a mysql Server Load balancer and a high-availability environment and a mysql Server Load balancer Objective: To use two hosts to achieve Mysql load balancing and redundancy, and achieve dual-master-slave mutual backup; Environment: rhel5.8, mysql-5.0.77, keepalived-1.2

Five Policies for configuring Server Load balancer using nginx in the production environment: nginx Server Load balancer Nginx upstream currently supports five allocation methods1. Round Robin (default) Each request is distributed to different backend servers one by one in chronological order. If the backend servers ar

The server Load balancer described in this article is used to balance client requests among multiple nginx processes. Note the difference between Server Load balancer and client requests on multiple backend servers. The problem of Server Load