centos6.5 realizes lvs+keepalived dual master hot standby

Topology

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1.   Basic Configuration

Configure IP based on topology

2.   Scheduler configuration-Install Ipvsadm and enable Ip_vs module

[[email protected] ~]# yum-y install ipvsadm[[email protected] ~]# modprobe ip_vs[[email protected] ~]# echo "Modproce IP _vs ">>/etc/rc.local

-Modify Kernel parameters

[Email protected] ~]# sysctl–pnet.ipv4.conf.all.send_redirects = 0net.ipv4.conf.default.send_redirects = 0net.ipv4.conf.eth0.send_redirects = 0

-Install keepalived and modify the configuration file

-- installation

[Email protected]~]# cd/usr/src/[[email protected] src]# tar zxfkeepalived-1.2.13.tar.gz [[email protected] src]# CD kee Palived-1.2.13[[email protected] Keepalived-1.2.13]#./configure--prefix=/--with-kernel-dir=/usr/src/kernels/ 2.6.32-431.el6.x86_64/&& make&& make install

--Modify configuration file-Global configuration

global_defs {notification_email {[email protected] [email protected] [email protected]} Notification_email_ From [email protected] smtp_server 192.168.200.1 smtp_connect_timeout router_id lvs_devel_1 #调度器名称}

--Modify configuration file-Hot standby configuration

vrrp_instance vi_1 {      #热备组1    state MASTER         #热备状态    interface eth0   virtual_router _id 51   priority 100             #优先级    advert_int 1   authentication {        auth_type PASS       auth_pass 1111    }   virtual_ipaddress {                192.168.1.11                   #群集VIP地址    }}vrrp_instance VI_2 {               #热备组2    state backup    interface&nbsP;eth0   virtual_router_id 52   priority 90   advert_ Int 1   authentication {       auth_type pass        auth_pass 1111    }    virtual_ipaddress {       192.168.1.22   }}

--Modify configuration file-web Server configuration

irtual_server 192.168.1.11 80 {      #虚拟服务器地址 (VIP), Port '     delay_loop 6            #健康检查时间间隔 (s)     lb_algo rr             #调度算法-Polling    lb_kind dr            # Cluster working mode  !  persistence_timeout 50       #连接保持时间 (s), remove! Enable    protocol tcp           # The application service is based on the TCP protocol     real_server 192.168.1.2 80 {          #第一个web节点的地址, Ports        weight 1                #节点的权重         tcp_check {             #健康检查方式              connect_timeout 3      #连接超时              nb_get_retry 3       #重试次数              delay_before_retry 3   # Retry Interval        }   }   real_server  192.168.1.3 80 {         #第二个web节点的地址, Ports         weight 1       TCP_CHECK {             connect_timeout 3             nb_get_retry 3             delay_before_retry 3       }   }}virtual_server  192.168.1.22 80 {   delay_loop 6   lb_algo rr    lb_kind DR !  persistence_timeout 50   protocol TCP     real_server 192.168.1.2 80 {       weight  1       TCP_CHECK {             connect_timeout 3             nb_get_retry 3             Delay_before_retry 3       }   }   real_ server 192.168.1.3 80 {       weight 1        tcp_check {            connect_timeout 3             nb_get_retry 3             delay_before_retry 3        }   }}

--Restart Service

Service keepalived Restart

--Similarly configure another scheduler

3.   Node server configuration-Modify kernel parameters

[Email protected] network-scripts]# Sysctl–pnet.ipv4.conf.all.arp_ignore = 1net.ipv4.conf.all.arp_announce = 2net.ipv4.conf.default.arp_ignore = 1net.ipv4.conf.lo.arp_ignore = 1net.ipv4.conf.default.arp_announce = 2net.ipv4.conf.lo.arp_announce = 2

-Configure Lo:0,lo:1 Virtual interface

[Email protected] ~]# cat/etc/sysconfig/network-scripts/ifcfg-lo:0device=lo:0onboot=yesipaddr= 192.168.1.11netmask=255.255.255.255[[email protected] ~]# Cat/etc/sysconfig/network-scripts/ifcfg-lo:1device=lo : 1onboot=yesipaddr=192.168.1.22netmask=255.255.255.255

-Add local route

[[email protected] ~]# Route add-host192.168.1.11 Dev Lo:0[[email protected] ~]# route add-host192.168.1.22 Dev Lo:1[[em AIL protected] ~]# echo "Route add-host 192.168.1.11 Dev lo:0" >>/etc/rc.local [[email protected] ~]# echo "Route A Dd-host 192.168.1.22 Dev lo:1 ">>/etc/rc.local

-Start Web Service

4.   NFS Configuration

[[email protected] ~]# cat /etc/exports /var/www/html      192.168.2.0/24 (Rw,sync,no_root_squash) [[Email protected] ~]# service rpcbindrestart Stop  rpcbind:                                               [OK] starting  rpcbind:                                            [Determine][[email protected] ~]# servie nfs restart-bash: servie:  Command not found[[email protected] ~]# service nfs restart Close  nfs   Daemon Process:                                         [ Failed] Close  NFS mountd:                                            [failed] Close  NFS quotas:                                             [Failure]shutting down rpc idmapd:                                    [failed] Start  NFS  service:                                              [OK] turn off   nfs  Quota:                                              [OK] Start  NFS mountd:                                             [OK] start  NFS  daemon:                                          [OK] starting  RPC idmapd:                                       [Determine]  [[email protected ] ~]# showmount -e192.168.2.1export list for 192.168.2.1:/var/www/html  192.168.2.0/24[[email protected] ~]# mount192.168.2.1:/var/www/html/ /var/www/html/

5.   Internal server Publishing-nat

Service configuration firewall instead of router test

Eth0 Configuring two IP

[Email protected] network-scripts]# catifcfg-eth0device=eth0hwaddr=00:0c:29:d5:ad:1btype=ethernetuuid= D3db1bd9-b0f5-4cc2-a5bb-3f0c28430ee0onboot=yesipaddr0=200.0.0.11netmask=255.255.255.0ipaddr1=200.0.0.22netmask =255.255.255.0

--nat

[Email protected] ~]# iptables-t nat-aprerouting-i eth0-d 200.0.0.11-p tcp--dport 80-j DNAT--to 192.168.1.11[[ema Il protected] ~]# iptables-t nat-aprerouting-i eth0-d 200.0.0.22-p tcp--dport 80-j DNAT--to 192.168.1.22

Attached: DNS configuration

[[email protected] ~]# cat /var/named/abc.com  $TTL  1D@     insoa   @ rname.invalid.  (                                     0     ; serial                                     1D   ;  refresh                                     1H   ; retry                                     1w  ; expire                                     3H)  ; minimum       in     ns    dnsdns      in    a      200.0.0.2www      in    a      200.0.0.11       in    a      200.0.0.22

--Before starting NFS

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  -- After starting NFS

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--Scheduler 1

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--Scheduler 2

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This article is from the "12241288" blog, please be sure to keep this source http://12251288.blog.51cto.com/12241288/1878430

centos6.5 realizes lvs+keepalived dual master hot standby