在VMWare Workstation中新建了一个虚拟机，由于虚拟机的建立确实需要花费不少时间，所以在真正使用时不使用第一次创建的虚拟机，而是使用它的克隆。当克隆的虚拟机出错时，重新克隆即可。
为了使虚拟机能够联网，使用VMWare中的桥接模式。
桥接模式–Bridged
桥接模式：桥接模式就是将主机网卡与虚拟机的网卡利用虚拟网桥进行通信。在桥接的作用下，类似于把物理主机虚拟为一个交换机，所有桥接设置的虚拟机连接到这个交换机的一个接口上，物理主机也同样插在这个交换机当中，所以所有桥接下的网卡与网卡都是交换模式的，相互可以访问而不干扰。
在桥接模式下，虚拟机ip地址需要与主机在同一个网段，如果需要联网，则网关与DNS需要与主机网卡一致。其网络结构如下图所示：
操作步骤
- 菜单栏"虚拟机"->“管理”->“克隆”
- 克隆虚拟机
以上三步骤都是选择默认值，但新虚拟机的名称和路径需要根据自己的选择进行更改
成功建立虚拟机!
- 对虚拟机进行设置
硬件->处理器->虚拟化引擎->全选
根据主机内存修改虚拟机内存，我将虚拟机内存修改为900M
选项->高级->进程优先级->抓取的输入内容：高
选项->高级->设置->禁止内存页面修整
- 开启此虚拟机，设置网络
注意：Linux7与Linux8中的设置并不相同
Linux7
[root@localhost ~]# cd /etc/sysconfig/network-scripts/ ##进入系统网络管理目录
[root@localhost network-scripts]# ls ##查看目录
ifcfg-ens33 ifdown-ppp ifup-ib ifup-Team
ifcfg-lo ifdown-routes ifup-ippp ifup-TeamPort
ifdown ifdown-sit ifup-ipv6 ifup-tunnel
ifdown-bnep ifdown-Team ifup-isdn ifup-wireless
ifdown-eth ifdown-TeamPort ifup-plip init.ipv6-global
ifdown-ib ifdown-tunnel ifup-plusb network-functions
ifdown-ippp ifup ifup-post network-functions-ipv6
ifdown-ipv6 ifup-aliases ifup-ppp
ifdown-isdn ifup-bnep ifup-routes
ifdown-post ifup-eth ifup-sit
[root@localhost network-scripts]# ifconfig ##查看网卡
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 00:0c:29:b7:f3:75 txqueuelen 1000 (Ethernet)
RX packets 37 bytes 9279 (9.0 KiB)
RX errors 0 dropped 12 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 88 bytes 7736 (7.5 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 88 bytes 7736 (7.5 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:14:c3:5c txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@localhost network-scripts]# rm -fr ifcfg-ens33 ##删除ens33的配置文件
[root@localhost network-scripts]# vim ifcfg-ens33 ##重新编辑该文件
注意：ip地址、子网掩码、网关地址和dns地址在Windows系统中的cmd命令行下输入：
ipconfig/all进行查询。
[root@localhost network-scripts]# systemctl stop NetworkManager ##关闭网络管理员
[root@localhost network-scripts]# systemctl restart network ##重启网络
[root@localhost network-scripts]# systemctl start NetworkManager ##开启网络管理员
[root@localhost network-scripts]# ping 192.168.1.18 -c 3 ##ping主机
PING 192.168.1.18 (192.168.1.18) 56(84) bytes of data.
64 bytes from 192.168.1.18: icmp_seq=1 ttl=64 time=0.279 ms
64 bytes from 192.168.1.18: icmp_seq=2 ttl=64 time=0.577 ms
64 bytes from 192.168.1.18: icmp_seq=3 ttl=64 time=0.564 ms
--- 192.168.1.18 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 0.279/0.473/0.577/0.138 ms
[root@localhost network-scripts]# ping www.baidu.com -c 3 ##ping百度首页
PING www.baidu.com (180.101.49.12) 56(84) bytes of data.
64 bytes from www.baidu.com (180.101.49.12): icmp_seq=1 ttl=52 time=42.1 ms
64 bytes from www.baidu.com (180.101.49.12): icmp_seq=2 ttl=52 time=43.6 ms
64 bytes from www.baidu.com (180.101.49.12): icmp_seq=3 ttl=52 time=52.6 ms
--- www.baidu.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 42.191/46.155/52.638/4.621 ms
Linux8
[root@RHTL8_clone ~]# cd /etc/sysconfig/network-scripts/
[root@RHTL8_clone network-scripts]# ls
ifcfg-ens160
[root@RHTL8_clone network-scripts]# rm -f ifcfg-ens160
[root@RHTL8_clone network-scripts]# vim ifcfg-ens160
[root@RHTL8_clone network-scripts]# systemctl restart NetworkManager
[root@RHTL8_clone network-scripts]# nmcli connection show
NAME UUID TYPE DEVICE
System ens160 ea74cf24-c2a2-ecee-3747-a2d76d46f93b ethernet ens160
virbr0 8d3419ec-7d1c-444c-a17d-dac71d7ed4af bridge virbr0
[root@RHTL8_clone network-scripts]# ping 192.168.1.18 -c 3 ##ping主机
PING 192.168.1.18 (192.168.1.18) 56(84) bytes of data.
64 bytes from 192.168.1.18: icmp_seq=1 ttl=64 time=0.511 ms
64 bytes from 192.168.1.18: icmp_seq=2 ttl=64 time=0.611 ms
64 bytes from 192.168.1.18: icmp_seq=3 ttl=64 time=0.575 ms
--- 192.168.1.18 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 48ms
rtt min/avg/max/mdev = 0.511/0.565/0.611/0.049 ms
[root@RHTL8_clone network-scripts]# ping 192.168.1.118 -c 3 ##ping另一台虚拟机
PING 192.168.1.118 (192.168.1.118) 56(84) bytes of data.
64 bytes from 192.168.1.118: icmp_seq=1 ttl=64 time=0.260 ms
64 bytes from 192.168.1.118: icmp_seq=2 ttl=64 time=0.749 ms
64 bytes from 192.168.1.118: icmp_seq=3 ttl=64 time=0.802 ms
--- 192.168.1.118 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 87ms
rtt min/avg/max/mdev = 0.260/0.603/0.802/0.245 ms
[root@RHTL8_clone network-scripts]# ping www.baidu.com -c 3 ##ping百度首页
PING www.baidu.com (180.101.49.12) 56(84) bytes of data.
64 bytes from www.baidu.com (180.101.49.12): icmp_seq=1 ttl=52 time=42.8 ms
64 bytes from www.baidu.com (180.101.49.12): icmp_seq=2 ttl=52 time=44.3 ms
64 bytes from www.baidu.com (180.101.49.12): icmp_seq=3 ttl=52 time=43.6 ms
--- www.baidu.com ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 6ms
rtt min/avg/max/mdev = 42.770/43.545/44.290/0.643 ms
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