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Keepalived + LVS configuration template. VIP: 123.125.22.90
Master: 123.125.22.97
Backup: 123.125.22.98
RealServer1: 123.125.22.99
RealServer2: 123.125.22.100 Loadbalance algorithm: wrr
Loadbalance type: DR
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| ! Configuration File for keepalived | |
| global_defs { | |
| notification_email { | |
| [email protected] | |
| } | |
| notification_email_from [email protected] | |
| smtp_server mail.sina.com.cn | |
| smtp_connect_timeout 30 | |
| router_id LVS_1 | |
| } | |
| vrrp_instance VI_1 { | |
| state BACKUP | |
| interface eth0 | |
| virtual_router_id 21 | |
| priority 50 | |
| advert_int 1 | |
| authentication { | |
| auth_type PASS | |
| auth_pass sinasec | |
| } | |
| virtual_ipaddress { | |
| 123.125.22.90 | |
| } | |
| } | |
| virtual_server 123.125.22.90 80 { | |
| delay_loop 6 | |
| lb_algo wrr | |
| lb_kind DR | |
| nat_mask 255.255.255.0 | |
| #persistence_timeout 50 | |
| protocol TCP | |
| real_server 123.125.22.99 80 { | |
| weight 10 | |
| TCP_CHECK { | |
| connect_port 80 | |
| nb_get_retry 3 | |
| connect_timeout 3 | |
| } | |
| } | |
| real_server 123.125.22.100 80 { | |
| weight 5 | |
| TCP_CHECK { | |
| connect_port 80 | |
| nb_get_retry 3 | |
| connect_timeout 3 | |
| } | |
| } | |
| } |
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| ! Configuration File for keepalived | |
| global_defs { | |
| notification_email { | |
| [email protected] | |
| } | |
| notification_email_from [email protected] | |
| smtp_server mail.sina.com.cn | |
| smtp_connect_timeout 30 | |
| router_id LVS_2L | |
| } | |
| vrrp_instance VI_1 { | |
| state MASTER | |
| interface eth0 | |
| virtual_router_id 21 | |
| priority 100 | |
| advert_int 1 | |
| authentication { | |
| auth_type PASS | |
| auth_pass sinasec | |
| } | |
| virtual_ipaddress { | |
| 123.125.22.90 | |
| } | |
| } | |
| virtual_server 123.125.22.90 80 { | |
| delay_loop 6 | |
| lb_algo wrr | |
| lb_kind DR | |
| nat_mask 255.255.255.0 | |
| #persistence_timeout 50 | |
| protocol TCP | |
| real_server 123.125.22.99 80 { | |
| weight 10 | |
| TCP_CHECK { | |
| connect_port 80 | |
| nb_get_retry 3 | |
| connect_timeout 3 | |
| } | |
| } | |
| real_server 123.125.22.100 80 { | |
| weight 5 | |
| TCP_CHECK { | |
| connect_port 80 | |
| nb_get_retry 3 | |
| connect_timeout 3 | |
| } | |
| } | |
| } |
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| #!/bin/bash | |
| #description: Config realserver | |
| VIP=123.125.22.90 | |
| /etc/rc.d/init.d/functions | |
| case "$1" in | |
| start) | |
| /sbin/ifconfig lo:0 $VIP netmask 255.255.255.255 broadcast $VIP | |
| /sbin/route add -host $VIP dev lo:0 | |
| echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore | |
| echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce | |
| echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore | |
| echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce | |
| sysctl -p >/dev/null 2>&1 | |
| echo "RealServer Start OK" | |
| ;; | |
| stop) | |
| /sbin/ifconfig lo:0 down | |
| /sbin/route del $VIP >/dev/null 2>&1 | |
| echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore | |
| echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce | |
| echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore | |
| echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce | |
| echo "RealServer Stoped" | |
| ;; | |
| *) | |
| echo "Usage: $0 {start|stop}" | |
| exit 1 | |
| esac | |
| exit 0 | |
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so cool