架构图，需要三台RS进行轮询访问，则架构图会和下图有点差距。
节点规划
主机 角色 系统 网络 IP
client client redhat 9.5 NAT 192.168.19.100/24
lvs lvs redhat 9.5 NAT、仅主机 192.168.111.111.27/24
nginx rs1 redhat 9.5 NAT 192.168.111.111.7/24
nginx rs2 redhat 9.5 NAT 192.168.111.111.17/24
nginx rs3 redhat 9.5 NAT 192.168.111.111.27/24
注意：本实验所有防火墙均关闭。setenforce 均为0
配置nginx
默认rs三台主机都下载nginx。
rs1
1.写入页面
root@rs1 \~\]# echo $(hostname -I) \> /usr/share/nginx/html/index.html 2.重启服务 \[root@rs1 \~\]# systemctl restart nginx 3.测试nginx \[root@rs1 \~\]# curl 192.168.111.17 192.168.111.17
注：其他两台均相同操作
配置lvs
修改虚拟网络
lvs服务器有两块网卡，第一块网卡采用仅主机模式，IP 地址为 192.168.19.200，第二块网卡
采用 NAT 模式，IP 地址为192.168.111.8
root@localhost \~\] # hostnamectl hostname lvs \[root@localhost \~\] # nmcli c modify ens160 ipv4.method manual ipv4.addresses 192.168.19.200/24 ipv4.gateway 192.168.19.2 ipv4.dns 223.5.5.5 connection.autoconnect yes \[root@localhost \~\] # nmcli c up ens160
安装软件
为了防止等会不能上外网先把 ipvsamd 软件安装。
root@lvs \~\] # dnf install ipvsadm -y ### 配置 NAT模式的网卡 > \[root@lvs \~\] # nmcli c modify ens224 ipv4.method manual ipv4.addresses > 192.168.111.8/24 ipv4.gateway 192.168.111.2 connection.autoconnect yes > \[root@lvs \~\] # nmcli c up ens224 > Connection successfully activated (D-Bus active path: > /org/freedesktop/NetworkManager/ActiveConnection/5) ### 做 LVS 规则匹配 > \[root@lvs \~\] # ipvsadm -A -t 192.168.19.200:80 -s rr > # 为规则增加 RS > \[root@lvs \~\] # ipvsadm -a -t 192.168.19.200:80 -r 192.168.111.7:80 -m -w 2 > \[root@lvs \~\] # ipvsadm -a -t 192.168.19.200:80 -r 192.168.111.17:80 -m - w 2 > \[root@lvs \~\] # ipvsadm -a -t 192.168.19.200:80 -r 192.168.111.17:80 -m - w 2 > \[root@lvs \~\] # ipvsadm -Ln > IP Virtual Server version 1 .2.1 (size = 4096 ) > Prot LocalAddress:Port Scheduler Flags > - \> RemoteAddress:Port Forward Weight ActiveConn InActConn > TCP 192 .168.10.200:80 rr > - \> 192 .168.111.7:80 Masq 2 0 0 > - \> 192 .168.72.111:80 Masq 2 0 0 > -\> 192.168.72.111:80 Masq 2 0 0 ### 配置内核参数 > \[root@lvs \~\] # echo "net.ipv4.ip_forward=1" \>\> /etc/sysctl.conf > 配置好后执行如下的命令来生效。 \[root@lvs \~\] # sysctl -p ## 配置客户端 > \[root@localhost \~\] # hostnamectl hostname client > \[root@localhost \~\] # nmcli c modify ens160 ipv4.method manual > ipv4.addresses 192.168.19.100/24 ipv4.gateway 192.168.19.2 ipv4.dns > 223.5.5.5 connection.autoconnect yes > \[root@localhost \~\] # nmcli c up ens160 ## 功能测试 ### 启动ipvsadm来测试服务 > \[root@lvs \~\]# ipvsadm-save \> /etc/sysconfig/ipvsadm > > \[root@lvs \~\]# systemctl start ipvsadm ### 在客户端测试 > \[root@client \~\]# curl 192.168.19.200 > 192 .168.111.7 > \[root@client \~\] # curl 192.168.19.200 > 192 .168.111.17 > \[root@client \~\] # curl 192.168.19.200 > 192 .168.111.27 > \[root@client \~\] # curl 192.168.19.200 > 192 .168.111.7 > \[root@client \~\] # curl 192.168.19.200 > 192 .168.111.17 > \[root@client \~\] # curl 192.168.19.200 > 192 .168.111.27 > \[root@client \~\] # curl 192.168.19.200 > 192 .168.111.7