安装keepalived+lvs

原创

叶问问情 2018-07-16 11:19:33 ©著作权

©著作权归作者所有：来自51CTO博客作者叶问问情的原创作品，请联系作者获取转载授权，否则将追究法律责任

安装keepalived+lvs [root@lvs ~]# yum install -y kernel-devel kernel [root@lvs ~]# yum install -y keepalived [root@lvs ~]# vim /etc/sysctl.conf　追加arp抑制 net.ipv4.conf.eth0.arp_ignore = 1 net.ipv4.conf.eth0.arp_announce = 2 net.ipv4.conf.all.arp_ignore = 1 net.ipv4.conf.all.arp_announce = 2 [root@Nginx ~]# sysctl -p　　使内核配置生效

在主keepalived服务器nginx修改keepalived配置文件 [root@Nginx ~]# cat /etc/keepalived/keepalived.conf ! Configuration File for keepalived

global_defs { notification_email { acassen@firewall.loc failover@firewall.loc sysadmin@firewall.loc } notification_email_from Alexandre.Cassen@firewall.loc smtp_server 127.0.0.1 smtp_connect_timeout 30 router_id LVS_DEVEL }

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 { 192.168.159.14 } }

virtual_server 192.168.159.14 80 { delay_loop 3 lb_algo rr lb_kind DR nat_mask 255.255.255.0 persistence_timeout 50 protocol TCP

real_server 192.168.159.20 80 {
    weight 10
    TCP_CHECK {
   connect_timeout 10
   nb_get_retry 3
   delay_before_retry 3
   connect_port 80

} } real_server 192.168.159.21 80 { weight 10 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 80 } } } [root@lvs2~]# cat /etc/keepalived/keepalived.conf ! Configuration File for keepalived

! Configuration File for keepalived

vrrp_instance VI_1 { state BACKUP interface eth0 virtual_router_id 51 priority 90 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.159.14 } }

virtual_server 192.168.159.14 80 { delay_loop 3 lb_algo rr lb_kind DR nat_mask 255.255.255.0 persistence_timeout 50 protocol TCP

real_server 192.168.159.20 80 {
    weight 10
    TCP_CHECK {
   connect_timeout 10
   nb_get_retry 3
   delay_before_retry 3
   connect_port 80

} } real_server 192.168.159.21 80 { weight 10 TCP_CHECK { connect_timeout 10 nb_get_retry 3 delay_before_retry 3 connect_port 80 } } } ８.３.１设置keepalived开机启动 [root@lvs ~]# chkconfig keepalived on [root@lvs ~]# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 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 00:0c:29:0c:69:fe brd ff:ff:ff:ff:ff:ff inet 192.168.159.23/24 brd 192.168.159.255 scope global eth0 inet 192.168.159.14/32 scope global eth0 inet6 fe80::20c:29ff:fe0c:69fe/64 scope link valid_lft forever preferred_lft forever