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VRRP(Virtual Router Redundancy Protocol)協議
網站: http://www.keepalived.org/
http://www.lvwnet.com/vince/linux/Keepalived-LVS-NAT-Director-ProxyArp-Firewall-HOWTO.htmlhttp://www.keepalived.org/LVS-NAT-Keepalived-HOWTO.html
http://archive.linuxvirtualserver.org/html/lvs-users/2002-12/msg00189.html
http://www.linuxvirtualserver.org/docs/ha/keepalived.html
兩台已經安裝好Ubuntu的伺服器
分別安裝ssh以方便putty登錄
neo@master:~$ sudo apt-get install ssh neo@slave:~$ sudo apt-get install ssh
install keepalived
neo@master:~$ apt-cache search lvs keepalived - Failover and monitoring daemon for LVS clusters neo@master:~$ sudo apt-get install keepalived
配置 keepalived.conf
neo@master:/etc/keepalived$ sudo touch keepalived.conf neo@master:/etc/keepalived$ sudo vi keepalived.conf
例 126.1. keepalived.conf
vrrp_sync_group VG1 { group { VI_1 VI_2 } } vrrp_instance VI_1 { state MASTER interface eth0 virtual_router_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 172.16.0.1 } } vrrp_instance VI_2 { state MASTER interface eth1 virtual_router_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 172.18.1.254 } } virtual_server 172.16.0.1 80 { delay_loop 6 lb_algo wlc lb_kind NAT persistence_timeout 600 protocol TCP real_server 172.16.0.2 80 { weight 100 TCP_CHECK { connect_timeout 3 } } real_server 172.16.0.3 80 { weight 100 TCP_CHECK { connect_timeout 3 } } real_server 172.16.0.4 80 { weight 100 TCP_CHECK { connect_timeout 3 } } }
enable ip_forward
$ sudo sysctl -w net.ipv4.ip_forward=1
neo@master:~$ sysctl net.ipv4.ip_forward net.ipv4.ip_forward = 0
Starting keepalived
neo@master:/etc/keepalived$ sudo /etc/init.d/keepalived start Starting keepalived: keepalived.
virtual_ipaddress | |
---|---|
virtual_ipaddress { 172.16.0.1/16 } 正常直接寫IP即可.但在ubuntu中如果不寫子網掩碼,它會預設為172.16.0.1/32. |