LVS NAT模式搭建
阿新 • • 發佈:2018-04-09
LVS NAT模式 準備工作
三臺機器上都執行執行
systemctl stop firewalld; systemctl disable firewalld
安裝iptables-services
systemctl enable iptables; systemctl start iptables; iptables -F; service iptables save
setenforce 0
分發器的設置
配置內網ip 192.168.130.116
[root@lynn-04 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33 TYPE=Ethernet PROXY_METHOD=none BROWSER_ONLY=no BOOTPROTO=static DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes IPV6_FAILURE_FATAL=no IPV6_ADDR_GEN_MODE=stable-privacy NAME=ens33 DEVICE=ens33 ONBOOT=yes IPADDR=192.168.130.116 NETMASK=255.255.255.0 GATEWAY=192.168.130.2 DNS1=119.29.29.29
配置外網ip 192.168.214.116 (vmware僅主機模式)
[root@lynn-04 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens37 TYPE=Ethernet PROXY_METHOD=none BROWSER_ONLY=no BOOTPROTO=static DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes IPV6_FAILURE_FATAL=no IPV6_ADDR_GEN_MODE=stable-privacy NAME=ens37 DEVICE=ens37 ONBOOT=no IPADDR=192.168.214.116
安裝ipvsadm
[root@lynn-04 ~]# yum install -y ipvsadm
編寫腳本/usr/local/sbin/lvs_nat.sh
[root@lynn-04 ~]# vim /usr/local/sbin/lvs_nat.sh #! /bin/bash # director 服務器上開啟路由轉發功能 echo 1 > /proc/sys/net/ipv4/ip_forward # 關閉icmp的重定向 echo 0 > /proc/sys/net/ipv4/conf/all/send_redirects echo 0 > /proc/sys/net/ipv4/conf/default/send_redirects # 註意區分網卡名字,我的兩個網卡分別為ens33和ens37 echo 0 > /proc/sys/net/ipv4/conf/ens33/send_redirects echo 0 > /proc/sys/net/ipv4/conf/ens37/send_redirects # director 設置nat防火墻 iptables -t nat -F iptables -t nat -X iptables -t nat -A POSTROUTING -s 192.168.130.0/24 -j MASQUERADE # director設置ipvsadm IPVSADM=‘/usr/sbin/ipvsadm‘ $IPVSADM -C $IPVSADM -A -t 192.168.214.116:80 -s wlc $IPVSADM -a -t 192.168.214.116:80 -r 192.168.130.118:80 -m -w 1 $IPVSADM -a -t 192.168.214.116:80 -r 192.168.130.128:80 -m -w 1
加載腳本/usr/local/sbin/lvs_nat.sh
[root@lynn-04 ~]# sh /usr/local/sbin/lvs_nat.sh
rs1的設置
配置內網ip 192.168.130.118
配置網關 192.168.130.116 (這裏的網關為分發器的內網ip)
[root@lynn-05 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
DEVICE=ens33
ONBOOT=yes
IPADDR=192.168.130.118
NETMASK=255.255.255.0
GATEWAY=192.168.130.116
DNS1=119.29.29.29
安裝nginx 需要在能外網通信的時候安裝
[root@lynn-05 ~]# yum install -y nginx
啟動nginx
[root@lynn-05 ~]# systemctl start nginx
[root@lynn-05 ~]# ps aux |grep nginx
root 2131 0.0 0.2 122908 2244 ? Ss 16:03 0:00 nginx: master process /usr/sbin/nginx
nginx 2132 0.0 0.3 123292 3596 ? S 16:03 0:00 nginx: worker process
nginx 2133 0.0 0.3 123292 3596 ? S 16:03 0:00 nginx: worker process
nginx 2134 0.0 0.3 123292 3592 ? S 16:03 0:00 nginx: worker process
nginx 2135 0.0 0.3 123292 3600 ? S 16:03 0:00 nginx: worker process
root 2142 0.0 0.0 112676 984 pts/0 S+ 16:09 0:00 grep --color=auto nginx
給nginx默認主頁設置一個標誌方便測試
[root@lynn-05 ~]# echo ‘lynn-05‘ > /usr/share/nginx/html/index.html
[root@lynn-05 ~]# cat /usr/share/nginx/html/index.html
lynn-05
rs2的設置
配置內網ip 192.168.130.128
配置網關 192.168.130.116 (這裏的網關為分發器的內網ip)
[root@lynn-06 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=ens33
UUID=fef8a686-6a1e-49bc-b03e-7797fc4c58bb
DEVICE=ens33
ONBOOT=yes
IPADDR=192.168.130.128
NETMASK=255.255.255.0
GATEWAY=192.168.130.116
DNS1=119.29.29.29
安裝nginx 需要在能外網通信的時候安裝
[root@lynn-06 ~]# yum install -y nginx
啟動nginx
[root@lynn-06 ~]# systemctl start nginx
[root@lynn-06 ~]# ps aux |grep nginx
root 3615 0.0 0.2 122908 2244 ? Ss 11:03 0:00 nginx: master process /usr/sbin/nginx
nginx 3616 0.0 0.3 123292 3348 ? S 11:03 0:00 nginx: worker process
nginx 3617 0.0 0.3 123292 3600 ? S 11:03 0:00 nginx: worker process
nginx 3618 0.0 0.3 123292 3600 ? S 11:03 0:00 nginx: worker process
nginx 3619 0.0 0.3 123292 3600 ? S 11:03 0:00 nginx: worker process
root 53455 0.0 0.0 112676 984 pts/0 S+ 16:10 0:00 grep --color=auto nginx
給nginx默認主頁設置一個標誌方便測試
[root@lynn-06 ~]# echo ‘lynn-06‘ > /usr/share/nginx/html/index.html
[root@lynn-06 ~]# cat /usr/share/nginx/html/index.html
lynn-06
測試
通過外網ip訪問
[root@lynn-04 ~]# curl 192.168.214.116
lynn-05
[root@lynn-04 ~]# curl 192.168.214.116
lynn-06
[root@lynn-04 ~]# curl 192.168.214.116
lynn-05
[root@lynn-04 ~]# curl 192.168.214.116
lynn-06
[root@lynn-04 ~]# curl 192.168.214.116
lynn-05
[root@lynn-04 ~]# curl 192.168.214.116
lynn-06
LVS NAT模式搭建