qq_58328312
qq_58328312

lvs模式配置

NAT模式配置

准备三台主机，两台rs，一台链路器

lvs配置

首先需要为lvs主机添加一块新网卡

两块网卡一块为nat模式另一块为仅主机模式

lvs模式配置_第1张图片

添加完网卡后重启虚拟机，即可看到多出一块网卡，并且网段与第一块网卡不同

[root@lvs ~]# ip a
1: lo:  mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens160:  mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:1f:07:bc brd ff:ff:ff:ff:ff:ff
    inet 192.168.80.129/24 brd 192.168.80.255 scope global dynamic noprefixroute ens160
       valid_lft 1083sec preferred_lft 1083sec
    inet6 fe80::20c:29ff:fe1f:7bc/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: ens192:  mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 00:0c:29:1f:07:c6 brd ff:ff:ff:ff:ff:ff
    inet 192.168.136.130/24 brd 192.168.136.255 scope global dynamic noprefixroute ens192
       valid_lft 1083sec preferred_lft 1083sec
    inet6 fe80::405a:7753:b874:c91e/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

配置网卡

[root@lvs network-scripts]# cp ifcfg-ens160 ifcfg-ens192
[root@lvs network-scripts]# vim ifcfg-ens192 
TYPE=Ethernet
BOOTPROTO=static
NAME=ens192
DEVICE=ens192
ONBOOT=yes
IPADDR=192.168.136.130
NETMASK=255.255.255.0
//不用配置网关
//可ping通外网
[root@lvs network-scripts]# ping www.baidu.com
PING www.baidu.com (36.152.44.95) 56(84) bytes of data.
64 bytes from 36.152.44.95 (36.152.44.95): icmp_seq=1 ttl=128 time=22.5 ms
64 bytes from 36.152.44.95 (36.152.44.95): icmp_seq=2 ttl=128 time=22.4 ms
64 bytes from 36.152.44.95 (36.152.44.95): icmp_seq=3 ttl=128 time=23.1 ms
64 bytes from 36.152.44.95 (36.152.44.95): icmp_seq=4 ttl=128 time=22.8 ms

配置RS

//配置RS1
[root@RS1 ~]# yum -y install httpd
[root@RS1 ~]# apachectl start
[root@RS1 ~]# ss -antl
State      Recv-Q     Send-Q          Local Address:Port           Peer Address:Port     
LISTEN     0          128                   0.0.0.0:22                  0.0.0.0:*        
LISTEN     0          128                      [::]:22                     [::]:*        
LISTEN     0          80                          *:3306                      *:*        
LISTEN     0          128                         *:80                        *:* 

[root@RS1 ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens160 
TYPE=Ethernet
BOOTPROTO=static
NAME=ens160
DEVICE=ens160
ONBOOT=yes
IPADDR=192.168.80.128
NETMASK=255.255.255.0
GATEWAY=192.168.80.129   //网关指向lvsIP地址，并且重启网卡
DNS1=114.114.114.114

[root@RS1 ~]# ifdown ens160;ifup ens160
成功停用连接 "ens160"（D-Bus 活动路径：/org/freedesktop/NetworkManager/ActiveConnection/5）
连接已成功激活（D-Bus 活动路径：/org/freedesktop/NetworkManager/ActiveConnection/6）


//配置RS2
[root@RS2 ~]# systemctl start nginx
[root@RS2 ~]# vi /etc/sysconfig/network-scripts/ifcfg-ens160
TYPE=Ethernet
BOOTPROTO=static
NAME=ens160
DEVICE=ens160
ONBOOT=yes
IPADDR=192.168.80.130
NETMASK=255.255.255.0
GATEWAY=192.168.80.129
DNS1=114.114.114.114
[root@RS2 ~]# ifdown ens160;ifup ens160
成功停用连接 "ens160"（D-Bus 活动路径：/org/freedesktop/NetworkManager/ActiveConnection/3）
连接已成功激活（D-Bus 活动路径：/org/freedesktop/NetworkManager/ActiveConnection/4）

配置lvs

[root@lvs ~]# vi /etc/sysctl.conf
[root@lvs ~]# cat /etc/sysctl.conf
# sysctl settings are defined through files in
# /usr/lib/sysctl.d/, /run/sysctl.d/, and /etc/sysctl.d/.
#
# Vendors settings live in /usr/lib/sysctl.d/.
# To override a whole file, create a new file with the same in
# /etc/sysctl.d/ and put new settings there. To override
# only specific settings, add a file with a lexically later
# name in /etc/sysctl.d/ and put new settings there.
#
# For more information, see sysctl.conf(5) and sysctl.d(5).
net.ipv4.ip_forward = 1  //ip转发
[root@lvs ~]# sysctl -p
net.ipv4.ip_forward = 1

[root@lvs ~]# yum -y install ipvsadm
[root@lvs ~]# ipvsadm -A -t 192.168.136.130:80 -s rr
[root@lvs ~]# ipvsadm -a -t 192.168.136.130:80 -r 192.168.80.128 -m
[root@lvs ~]# ipvsadm -a -t 192.168.136.130:80 -r 192.168.80.130 -m
[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  192.168.136.130:80 rr
  -> 192.168.80.128:80            Masq    1      0          0         
  -> 192.168.80.130:80            Masq    1      0          0

使用终端访问lvs ip——192.168.136.130

观察到前后两次访问内容有变化即成功配置——访问到两个网站

[root@lvs ~]# curl 192.168.136.130



    
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[root@lvs ~]# curl 192.168.136.130



  
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