一、配置IP

1.自动获取IP

命令：dhclient
通过DHCP服务自动获取一个IP地址
注意：无法重复运行dhclient，再次运行需要先使用命令dhclient -r来释放IP

2.手动设置IP地址

首先打开VMnet(NAT模式)的NAT设置界面，查看子网IP为192.168.89.0，子网掩码为255.255.255.0，网关IP为192.168.89.2。

image.png

通过编辑网卡的配置文件来修改IP地址，输入以下命令：
vi /etc/sysconfig/network-scripts/ifcfg-ens33
将BOOTPROTO=dhcp修改成BOOTPROTO=static,将ONBOOT=no改为ONBOOT=yes,并增加：
IPADDR=192.168.89.130
GATEWAY=192.168.89.2
NETMASK=255.255.255.0
BROADCAST=192.168.89.255
DNS1=119.29.29.29

TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static           #static表示设置静态IP地址
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=c0f01c3c-028a-4219-86db-bc442037da9b
DEVICE=ens33
ONBOOT=yes                 #设置yes使网卡随系统一起启动

IPADDR=192.168.89.130      #指定IP地址
GATEWAY=192.168.89.2       #NAT设置里的网关地址
NETMASK=255.255.255.0
BROADCAST=192.168.89.255
DNS1=119.29.29.29

推出配置文档后需要重启网络服务，运行以下命令：
# systemctl restart network.service

3.查看IP地址

命令1：ip addr

[root@localhost ~]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> 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: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:46:01:25 brd ff:ff:ff:ff:ff:ff
    inet 192.168.89.130/16 brd 192.168.89.255 scope global ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe46:125/64 scope link 
       valid_lft forever preferred_lft forever

命令2：ifconfig
由于系统是最小化安装，执行ifconfig命令会报命令未找到。
运行如下命令安装相关软件包：
# yum install net-tools

[root@localhost ~]# ifconfig -a
ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.89.130  netmask 255.255.0.0  broadcast 192.168.89.255
        inet6 fe80::20c:29ff:fe46:125  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:46:01:25  txqueuelen 1000  (Ethernet)
        RX packets 1332  bytes 430202 (420.1 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 724  bytes 90731 (88.6 KiB)
        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 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

4.测试网络联通性

命令：ping

[root@localhost ~]# ping -c 4 www.aminglinux.com
PING www.aminglinux.com (182.254.152.182) 56(84) bytes of data.
64 bytes from 182.254.152.182 (182.254.152.182): icmp_seq=1 ttl=128 time=97.5 ms
64 bytes from 182.254.152.182 (182.254.152.182): icmp_seq=2 ttl=128 time=103 ms
64 bytes from 182.254.152.182 (182.254.152.182): icmp_seq=3 ttl=128 time=90.9 ms
64 bytes from 182.254.152.182 (182.254.152.182): icmp_seq=4 ttl=128 time=102 ms

--- www.aminglinux.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 11341ms
rtt min/avg/max/mdev = 90.986/98.713/103.441/5.028 ms