dual wan load balancing

boot from boot4) Configure Keepalived. Vim/etc/keepalived/keepalived.confAfter modifying the configuration restart Keepalived service.5) from the scheduler configurationRouter-id LVS2State BACKUPPriority 99The remaining configuration items are the same, and the configuration restart Keepalived service is completed after modification.3. Verifying the Cluster1) Login 172.16.16.172Change a computer to log inThis successfully verifies the load

Experiment topology: Lab environment: GNS3 and C3640 Purpose: To verify whether the auto-load balancing function is implemented by the kernel. Next we will start the experiment 1. Configure an IP address for R1 R1> en R1 # conf Starting ing from terminal, memory, or network [terminal]? Enter configuration commands, one per line. End with CNTL/Z. R1 (config) # int lo0 R1 (config-if) # ip add 1.1. * Mar 1

HTTP Load Balancing through LVS 1. Summary This article does not consider dual-host mutual backup. Http load balancing is achieved through scripts and LVS, and clusters are used in the actual production environment. 2. Installation 1) Prepare the Software Package Ipvsadm-1

I. Environmental planning650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/73/53/wKiom1X6SEax6HlpAAEImIcTpPA588.jpg "title=" planning. png "alt=" Wkiom1x6seax6hlpaaeimictppa588.jpg "/> Operating system: CentOS6.5 x86_64 Kernel version: 2.6.32-504.el6.x86_64 Nginx Version: nginx-1.8.0-1.el6.ngx.x86_64 Keepalived version: keepalived-1.2.19 Front-end dual Nginx+keepalived,nginx reverse proxy to back-end tomcat cluster t

# ln-s/usr/src/kernels/2.6.18-53.el5pae-i686/ /usr/src/linux # TAR-XZVF ipvsadm-1.24.tar.gz # CD ipvsadm-1.24 # make # make install # CP ipvsadm/sbin/ 3. Configure virtual IP services and load Balancing This column more highlights: http://www.bianceng.cnhttp://www.bianceng.cn/Servers/zs/ To 192.168.91.10 (LVS host) as a LVS host, for the host network card configuration of

Although LVS implements load balancing, it cannot solve a serious problem. When a RealServer is on the machine, it cannot direct subsequent requests allocated to the server to other surviving servers. $ Sudo apt-get install ipvsadm keepalivedYou can directly modify keepalived. conf without configuring ipvsadm. $ Sudo vim/etc/keepalived. conf Global_defs {Router_id LVS_DEVEL} Vrrp_instance VI_1 {State MASTER

: 19.74: SHOW MASTER LOGS; 　　　　 Use the same command on 19.76: 　　　　 5. Configure dual-Master: 19.74: Change MASTER to master_host= ' 192.168.19.76 ', master_user= ' master ', master_password= ' 123456 ', master_log_file= ' Mysql2-bin.000001 ', master_log_pos=1112; START SLAVE; 19.76: Change MASTER to master_host= ' 192.168.19.74 ', master_user= ' master ', master_password= ' 123456 ', master_log_file= ' Mysql1-bin.000001 ', master_log_pos=1112; START

row in Set (0.00 sec) Error:no query specified3) Use Navicat connection Mycat, operation mode and connection physical MySQL library consistent, user admin, password admin, Port 8066 After the connection is successful, you will see the TestDB database and the test data table Add some data to the test table to save Perform a SELECT * from test to view the test operation and see that the data is not updated Cause: Mycat Query Sq is routed to B, so the result set read is incon

normal! Proving not an application-level configuration exception problem! It's probably a problem with the network impact app!In view of the hardware failure when the machine, path changes, the application of SSL protocol interaction packet size anomalies, and prompted Previos fragment lead segment loss and other network problems, F5 personnel recommended to check the MTU settings, and then the customer management and network personnel to say before the MTU problem, let Cisco The TAC makes a ch

Article Title: about dual-connection server load balancer. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Save everyone's time. First, let's talk about the theme: 　　 Packet-level TCP/UDP load

MySQL master/dual Server Load balancer MySQL dual-host master architecture, coupled with Load Balancing Devices, can achieve high performance and high availability of mysql database load balan