lb及其rs配置
3.1 負載均衡器配置配置
停止路由**功能
[root@lvs01 linux]# sysctl -w net.ipv4.ip_forward=0
net.ipv4.ip_forward = 0
[root@lvs01 linux]# sysctl -w net.ipv4.conf.all.send_redirects=1
net.ipv4.conf.all.send_redirects = 1
[root@lvs01 linux]# sysctl -w net.ipv4.conf.default.send_redirects=1
net.ipv4.conf.default.send_redirects = 1
通過eth0繫結
[root@lvs01 linux]# sysctl -w net.ipv4.conf.eth0.send_redirects=1
net.ipv4.conf.eth0.send_redirects = 1
設定虛擬ip位址
[root@lvs01 linux]# ifconfig eth0:0 192.168.28.111 netmask 255.255.255.0
啟用eth0:0
[root@lvs01 linux]# ifconfig eth0:0 up
清除ipvs規則表
[root@lvs_01 ~]# ipvsadm -c
檢視集群分布
[root@lvs_01 ~]# ipvsadm -l -n
ip virtual server version 1.2.1 (size=4096)
prot localaddress:port scheduler flags
-> remoteaddress:port forward weight activeconn inactconn
為避免arp解析 增加主機路由
[root@lvs01 linux]# /sbin/route add -host 192.168.28.111 dev eth0:0
[root@lvs_01 ~]# route -n
kernel ip routing table
destination gateway genmask flags metric ref use iface
192.168.2.111 0.0.0.0 255.255.255.255 uh 0 0 0 eth0
192.168.28.0 0.0.0.0 255.255.255.0 u 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 u 0 0 0 eth0
0.0.0.0 192.168.28.2 0.0.0.0 ug 0 0 0 eth0
[root@lvs_01 ~]#
[root@lvs01 linux]# ipvsadm -a -t 192.168.28.111:80 -s rr
在lb master中增加真實伺服器
[root@lvs01 linux]# ipvsadm -a -t 192.168.28.111:80 -r 192.168.28.134 -g -w 1
[root@lvs01 linux]# ipvsadm -a -t 192.168.28.111:80 -r 192.168.28.135 -g -w 2
[root@lvs_01 ~]# ipvsadm -l -n
ip virtual server version 1.2.1 (size=4096)
prot localaddress:port scheduler flags
-> remoteaddress:port forward weight activeconn inactconn
tcp 192.168.28.111:80 rr
-> 192.168.28.135:80 route 1 0 0
-> 192.168.28.134:80 route 1 0 0
注：backup lb中安裝配置和master一致
3.2 rserver 應用真實伺服器配置
[root@rs01 ~]# sysctl -w net.ipv4.ip_forward=0
忽略arp設定
[root@rs01 ~]# sysctl -w net.ipv4.conf.lo.arp_ignore=1
設定arp宣告值
[root@rs01 ~]# sysctl -w net.ipv4.conf.lo.arp_announce=2
net.ipv4.conf.lo.arp_announce = 2
[root@rs01 ~]# sysctl -w net.ipv4.conf.all.arp_ignore=1
net.ipv4.conf.all.arp_ignore = 1
[root@rs01 ~]# sysctl -w net.ipv4.conf.all.arp_announce=2
net.ipv4.conf.all.arp_announce = 2
配置rs02中vip位址
[root@rs01 ~]# /sbin/ifconfig lo:0 192.168.28.111 netmask 255.255.255.255 broadcast 192.168.28.111 up
檢視路由表
[root@localhost html]# route -n
kernel ip routing table
destination gateway genmask flags metric ref use iface
192.168.28.0 0.0.0.0 255.255.255.0 u 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 u 0 0 0 eth0
0.0.0.0 192.168.28.2 0.0.0.0 ug 0 0 0 eth0
增加主機虛擬ip
[root@rs01 ~]# /sbin/route add -host 192.168.28.111 dev lo:0
再次檢視路由表
[root@localhost html]# route -n
kernel ip routing table
destination gateway genmask flags metric ref use iface
192.168.28.111 0.0.0.0 255.255.255.255 uh 0 0 0 lo
192.168.28.0 0.0.0.0 255.255.255.0 u 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 u 0 0 0 eth0
0.0.0.0 192.168.28.2 0.0.0.0 ug 0 0 0 eth0
虛擬ip已新增進來
注：rs02 配置過程與rs01一致,參照rs01配置
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