dr asner

I. Environment System: centos 6.4x64 minimal installation DR: 192.168.3.20 RS1: 192.168.3.21 Rs2: 192.168.3.22 VIP: 192.168.3.23 2. Configure the HTTPd service on the RealServer for testing. RS1 Configuration [[Email protected] ~] # Yum install httpd-y [[email protected] ~] # Service httpd startstarting httpd: apr_sockaddr_info_get () failed for rs1httpd: cocould not reliably determine the server's fully qualified domain name, using 127.0.0.1 for serv

Linux Lab Report-Build a LVS of the DR ModelExperimental background:Learn notes and build a Dr model of LVs Experimental Purpose:Understand LVS of the DR How the Model worksImplement a LVS of the DR the experiment of the modelLab Environment:Vmware Workstation 9 , CentOS 6.4 experimental steps:1 , the experiment aims

Basic Terminology :　　Director: Front-End load balancer, running LVS, currently only for Linux, for FreeBSD just out, performance is not very good. can be used for Web, FTP, cache, MMS and even MySQL services to do load balances.Realserver: The back end requires a load-balanced server that can be used for a variety of systems, Linux, Solaris, Aix, BSD, Windows, and even director itself as a realserver.LVS (Linux Virtual Server), Linux load balancer, support Lvs-nat, LVS-

VIP. Sh #! /Bin/bashifconfig eth0: 0 192.168.2.240 broadcast 192.168.2.240 netmask 255.255.255.255 uproute add-host 192.168.2.240 Dev eth0: 0 ipvsadm-cipvsadm-a-t 192.168.2.240: 80-s rr-P 600 ipvsadm-a-t 192.168.2.240: 80-r 192.168.2.212-g1_sadm-a-t 192.168.2.240: 80-r 192.168.2.213-g1_sadm LVS. Sh #! /Bin/bashifconfig lo: 0 192.168.2.240 broadcast 192.168.2.240 netmask 255.255.255.255 uproute add-host 192.168.2.240 Dev lo: 0 echo "1">/proc/sys/NET/IPv4/CONF/LO/arp_ignoreecho "2">/proc/sys/NE

After more than a year of development, Dr. Han's official version has been released! New features:The unified code database is updated to 7.0.Adds a preference for the number of Chinese characters and strokes. Simplified and traditional Chinese characters. Sorts Chinese characters and texts. When a single Chinese character is selected, the simplified and complex variants and pronunciations of the Chinese character are displayed. Modify the font size o

Although there is only one document for using the database compiler of Dr. Han, enthusiastic netizens wangyanhan and sanwsw have provided original files and made databases for them. I modified the source files and compilation configuration files they provided, and uploaded them to the "database source files" directory of the downloaded space. You can download the latest Chinese doctor 0.5.2.1285 and database source files, and use the dictionary compil

LVS (DR) + ldirectord for Load BalancingWaynewu 2009-10-28MSN: waynewush@yahoo.com.cn Email: waynewush@gmail.comI. Environment IntroductionTest the apache load balancing on two machines. A total of three machines are used.Dispatcher: 192.168.1.238Vip1: 192.168.1.230Realip: 192.168.1.235Readip: 192.168.1.236System: RHEL 5.3Ii. installation and configuration process1. install and configure the scheduling machine lvs1. The LVS installation software has b

IP planning:Director eth0 dip:192.168.2.230eth0:0 vip:192.168.2.231rs1:eth0:192.168.2.229lo:0:vip:192.168.2.231rs2:eth0:192.168.2.228lo:0:vip:192.168.2.2311.[[email protected]/]# cd/proc/sys/net/ipv4/conf/[Email protected] conf]# pwd/proc/sys/net/ipv4/conf2.[[email protected] conf]# sysctl-w net.ipv4.conf.eth0.arp_announce=2Net.ipv4.conf.eth0.arp_announce = 2[Email protected] conf]# sysctl-w net.ipv4.conf.all.arp_announce=2Net.ipv4.conf.all.arp_announce = 23.[[email protected] conf]# echo 1 >/pr

example, can you give your child a role model and lead him to adventure in this world, whether you can tell a story or not, when telling the truth of life is not just a blunt command, whether you can take responsibility with him when the child makes a mistake. Therefore, the students in this Chamber must not neglect to cultivate their own leadership.(Pictures from the network)____________________________________________________________________________________Related readingSeeds and soil-

Dr. Tsurumi Mountain Li Zhonghao ???? Three and sir??? Manuscript?? Publishing????? A read 으? Aoba Krill Noodle Spring Hall doctor??? ??? ??? ??? The press negotiations??으? Ruyi??? When?? Big teaches??? 30 years ago Disciple Wen Ning Sik (?)? "? Manuscript?? ?????? ?? ?????"? Due to the??? of edges Tsurumi, Mr. Hill? "??? Room??? ?????? Scrutiny??? Press?? Lee Chung??? Published??? " ?? Easy to learn the theory????? ????? Book of t

Dr Mode of Lvs+keepalived load Balancing clusterFirst, the environment5 virtual machines, respectively:1 sets of test machines (192.168.3.111);2 sets of Directorserver (192.168.3.221, 192.168.3.222);2 sets of Realserver (192.168.3.231, 192.168.3.232);Note: VIP This experiment is set to: 192.168.3.220Second, installation configuration RealserverYum-y Install httpdChkconfig httpd onEcho ' R1/r2 '/var/www/html/index.html #两台的配置都一样, this step in order to

distinguish between the linePersistent connection for firewall taggingIptables-t mangle-a prerouting-d 192.168.1.110-p tcp--dport 80-j Mark--set-mark 10 destinations 1982.168.1.110:80 marked as 10ipvs Adm-a-F 10-s rr-p 60//Use the 10 defined above to define the Cluster service ipvsadm-a-F 10-r 192.168.1.116-g/For cluster definition realserveripvsadm-a-f 10-r 192.1 68.1.117-gSimple back-Office RS Health Monitoring script#!/bin/bash#vip=192.168.1.110cport=80fail_back=127.0.0.1fbstatus=0rs= ("192.

Every time you configure LVS, you need to re-access the internet to find configuration methods. some of these methods are incorrect, and most of them are not very comprehensive. it takes some time to troubleshoot each time, therefore, I decided to write an article and record it to avoid wasting time in the future. LVS installation will not be mentioned. if I do not install software like LVS in linux, I cannot say so. Every time you configure LVS, you need to re-access the internet to find config

0.0.0.0 area 0R4 (config-router) #network 192.168.1.4 0.0.0.255 area 0R4 (Config-router) #exitR4 (config) #interface fastethernet 0/0R4 (CONFIG-IF) #ip OSPF priority 0R4 (config-if) #no shutdownR4 (config-if) #exitR1 (config) #do show ip route1.0.0.0/32 is subnetted, 1 subnetsC 1.1.1.1 is directly connected, Loopback02.0.0.0/32 is subnetted, 1 subnetsO 2.2.2.2 [110/2] via 192.168.1.2, 00:00:51, fastethernet0/03.0.0.0/32 is subnetted, 1 subnetsO 3.3.3.3 [110/2] via 192.168.1.3, 00:00:51, fasteth