centos中网卡的配置
<p><span style="font-family: 宋体; font-size: 14pt">配置临时IP：</span></p><div class="cnblogs_Highlighter">
<pre class="brush:bash;gutter:true;">ip a a 192.168.59.100/24 dev ens32
ifconfig ens32 192.168.59.100 up </pre>
</div>
<p><span style="font-family: 宋体; font-size: 14pt">在Linux最小安装之后，一般需要手动配置网络地址。</span></p>
<p><span style="font-size: 14pt; font-family: 宋体">初始化界面：</span></p>
<p><img src="https://img2018.cnblogs.com/blog/1805569/201909/1805569-20190916193617673-788544875.png" alt=""></p>
<p><span style="font-size: 18pt; font-family: 宋体">一、简单的利用DHCP获取</span></p>
<p><span style="font-size: 14pt; font-family: 宋体">1、进入网卡配置文件</span></p>
<p><span style="font-size: 14pt; font-family: 宋体"> <span class="cnblogs_code"><span style="color: rgba(0, 128, 128, 1)">1</span> cd /etc/sysconfig/network-scripts/</span> </span></p>
<p><span style="font-size: 14pt; font-family: 宋体">2、ls列出network-scripts目录下的文件</span></p>
<p><img src="https://img2018.cnblogs.com/blog/1805569/201909/1805569-20190916193903072-1561077351.png" alt=""></p>
<p><span style="font-size: 14pt; font-family: 宋体">3、找到ifcfg-ens33,进入ifcfg-ens33文件，修改onboot的no为yes</span></p>
<blockquote>
<p><span style="font-size: 14pt; font-family: 宋体">BOOTPROTO=static #静态IP</span><br><span style="font-size: 14pt; font-family: 宋体">BOOTPROTO=dhcp #动态IP</span><br><span style="font-size: 14pt; font-family: 宋体">BOOTPROTO=none #无（不指定）</span></p>
<p><span style="font-size: 14pt; font-family: 宋体">通常情况下自己配置时为none</span></p>
</blockquote>
<p><img src="https://img2018.cnblogs.com/blog/1805569/201909/1805569-20190916193932181-654132982.png" alt=""></p>
<p><span style="font-size: 14pt; font-family: 宋体">4、重启网络地址：</span></p>
<div class="cnblogs_Highlighter">
<pre class="brush:bash;gutter:true;">systemctl restart network #重启网络服务
ip a / ifconfig #查看网络地址。</pre>
</div>
<p><span style="font-size: 14pt; font-family: 宋体">5.重启或关机后再次连接</span></p>
<div class="cnblogs_Highlighter">
<pre class="brush:bash;gutter:true;">reboot
poweroff
shutdown -r now
shutdown now</pre>
</div>
<p><span style="font-size: 18pt; font-family: 宋体">二、手动配置IP。</span></p>
<div class="cnblogs_Highlighter">
<pre class="brush:bash;gutter:true;"><span style="font-size: 16px">cd /etc/sysconfig/network-scripts/ #进入网卡配置文件
vi ifcfg-ens33 #配置网卡
################
NAME=ens33 #网卡名称
DEVICE=ens33 #设备名称
ONBOOT=yes #开机启动
BOOTPROTO=none #IP获取方式
IPADDR=192.168.59.103 #IP地址
NETMASK=255.255.255.0 #网络掩码
GATEWAY=192.168.59.2 #网关地址
DNS1=192.168.59.2 #dns1号地址
##################<br><br>systemctl restart network<br>reboot</span></pre>
</div>
<p><span style="font-size: 14pt; font-family: 宋体">在第三步中，得到子网和掩码，所用IP可以从192.168.59.3-192.168.59.254中随便获取一个。</span></p>
<p><span style="font-size: 14pt; font-family: 宋体">附加：</span></p>
<p><span style="font-size: 14pt; font-family: 宋体">如何得到centos的网关和IP：</span></p>
<p><img src="https://img2018.cnblogs.com/blog/1805569/201909/1805569-20190916195345163-2138451374.png" alt=""></p>
<p> </p>
</div>
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来源：https://www.cnblogs.com/twoo/p/11529559.html
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