MASTER机,10.0.0.9
BACKUP机,10.0.0.10
1,安装
wget http://www.keepalived.org/software/keepalived-1.2.7.tar.gz tar xvzf keepalived-1.2.7.tar.gz cd keepalived-1.2.7 ./configure make make install
2,配置(低版本貌似才需要这个配置)
cp /usr/local/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/ cp /usr/local/etc/sysconfig/keepalived /etc/sysconfig/ mkdir /etc/keepalived cp /usr/local/sbin/keepalived /usr/sbin/ vi /etc/keepalived/keepalived.conf
3,MASTER配置keepalived.conf,避免立即将vip还回去配置双BACKUP
vrrp_instance VI_1 { state BACKUP interface eth0 virtual_router_id 11 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 10.0.0.100 10.0.0.101 } } vrrp_instance VI_2 { state BACKUP interface eth1 virtual_router_id 21 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.0.100 192.168.0.101 } }
4,BACKUP配置keepalived.conf
vrrp_instance VI_1 { state BACKUP interface eth0 virtual_router_id 11 priority 10 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 10.0.0.100 10.0.0.101 } } vrrp_instance VI_2 { state BACKUP interface eth1 virtual_router_id 21 priority 10 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.0.100 192.168.0.101 } }
5,启动
[root@davidserver keepalived]# keepalived
由于/etc/rc.d/init.d/keepalived start报错,故采用如此启动
6,MASTER机验证网络信息
[root@davidserver keepalived]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:50:56:20:3d:2a brd ff:ff:ff:ff:ff:ff inet 10.0.0.9/24 brd 10.0.0.255 scope global eth0 inet 10.0.0.100/32 scope global eth0 inet 10.0.0.101/32 scope global eth0 inet6 fe80::250:56ff:fe20:3d2a/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:50:56:34:80:48 brd ff:ff:ff:ff:ff:ff inet 192.168.0.9/16 brd 192.168.0.255 scope global eth1 inet 192.168.0.100/32 scope global eth1 inet 192.168.0.101/32 scope global eth1 inet6 fe80::250:56ff:fe34:8048/64 scope link valid_lft forever preferred_lft forever
7,停MASTER机keepalived服务,验证BACKUP机网络
[root@davidserver keepalived]# /etc/rc.d/init.d/keepalived stop Stopping keepalived: [ OK ]
[root@davidserver keepalived]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:50:56:2e:2b:6d brd ff:ff:ff:ff:ff:ff inet 10.0.0.10/24 brd 10.0.0.255 scope global eth0 inet 10.0.0.100/32 scope global eth0 inet 10.0.0.101/32 scope global eth0 inet6 fe80::250:56ff:fe2e:2b6d/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:50:56:3b:e8:e2 brd ff:ff:ff:ff:ff:ff inet 192.168.0.10/16 brd 192.168.0.255 scope global eth1 inet 192.168.0.100/32 scope global eth1 inet 192.168.0.101/32 scope global eth1 inet6 fe80::250:56ff:fe3b:e8e2/64 scope link valid_lft forever preferred_lft forever
8,更新后的配置
[root@davidserver ~]# cat /etc/keepalived/keepalived.conf global_defs { notification_email { [email protected] } notification_email_from [email protected] smtp_server 127.0.0.1 stmp_connect_timeout 30 router_id keepalived_for_backup } vrrp_script check_top { script "/root/bin/check_top" interval 10 weight 10 } vrrp_instance VI_1 { state BACKUP interface eth0 virtual_router_id 11 priority 10 advert_int 1 nopreempt authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 10.0.0.100/24 dev eth0 label eth0:0 10.0.0.101/24 dev eth0 label eth0:1 } track_script { check_top weight 20 } } vrrp_instance VI_2 { state BACKUP interface eth1 virtual_router_id 21 priority 10 advert_int 1 nopreempt authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.0.100/16 dev eth1 label eth1:0 192.168.0.101/16 dev eth1 label eth1:1 } track_script { check_top } }
9,查看网络信息
ip a
[root@davidserver ~]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:50:56:20:3d:2a brd ff:ff:ff:ff:ff:ff inet 10.0.0.9/24 brd 10.0.0.255 scope global eth0 inet 10.0.0.100/24 scope global eth0:0 inet 10.0.0.101/24 scope global eth0:1 inet6 fe80::250:56ff:fe20:3d2a/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:50:56:34:80:48 brd ff:ff:ff:ff:ff:ff inet 192.168.0.9/16 brd 192.168.0.255 scope global eth1 inet 192.168.0.100/16 scope global eth1:0 inet 192.168.0.101/16 scope global eth1:1 inet6 fe80::250:56ff:fe34:8048/64 scope link valid_lft forever preferred_lft forever
ifconfig
[root@davidserver ~]# ifconfig eth0 Link encap:Ethernet HWaddr 00:50:56:20:3D:2A inet addr:10.0.0.9 Bcast:10.0.0.255 Mask:255.255.255.0 inet6 addr: fe80::250:56ff:fe20:3d2a/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1206 errors:0 dropped:0 overruns:0 frame:0 TX packets:1282 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:125352 (122.4 KiB) TX bytes:148912 (145.4 KiB) eth0:0 Link encap:Ethernet HWaddr 00:50:56:20:3D:2A inet addr:10.0.0.100 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 eth0:1 Link encap:Ethernet HWaddr 00:50:56:20:3D:2A inet addr:10.0.0.101 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 eth1 Link encap:Ethernet HWaddr 00:50:56:34:80:48 inet addr:192.168.0.9 Bcast:192.168.0.255 Mask:255.255.0.0 inet6 addr: fe80::250:56ff:fe34:8048/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:349754 errors:0 dropped:0 overruns:0 frame:0 TX packets:476 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:21502934 (20.5 MiB) TX bytes:32269 (31.5 KiB) eth1:0 Link encap:Ethernet HWaddr 00:50:56:34:80:48 inet addr:192.168.0.100 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 eth1:1 Link encap:Ethernet HWaddr 00:50:56:34:80:48 inet addr:192.168.0.101 Bcast:0.0.0.0 Mask:255.255.255.255 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)