Ubuntu20.04修改ip地址的方法示例
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今天在继续上次的办公协作平台实验的时候发现虚拟机因为之前是DHCP的方式获取的ip地址，而这次虚拟机开机后DHCP获取的地址变更了，因为网站上已经配置了固定ip地址访问，导致不能访问网页，所以需要修改ip地址为上次获取的ip地址才能访问，查了一下ubuntu怎么修改ip地址才发现“ubuntu从17.10开始，已放弃在/etc/network/interfaces里固定IP的配置，即使配置也不会生效，而是改成netplan方式 ，配置写在/etc/netplan/01-netcfg.yaml或者类似名称的yaml文件里”<br>
话不多说，直接说netplan怎么修改ip地址</p>
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<span><strong>0x00</strong></span></p>
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<img style="max-width:100%!important;height:auto!important;"title="Ubuntu20.04修改ip地址的方法示例" alt="Ubuntu20.04修改ip地址的方法示例" src="https://zhuji.jb51.net/uploads/img/202305/c5fa081fdc6a8da85851e365dbda176c.jpg"></p>
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使用ifconfig命令查看网卡</p>
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<code class="bash functions">ifconfig</code>
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<strong>0x01修改yaml配置文件</strong></p>
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<code class="bash functions">sudo</code> <code class="bash functions">vi</code> <code class="bash plain">/etc/netplan/00-installer-config</code><code class="bash plain">.yaml</code>
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<code class="bash plain">network:</code>
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<code class="bash spaces"> </code><code class="bash plain">ethernets:</code>
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<code class="bash spaces"> </code><code class="bash plain">ens33: </code><code class="bash comments">#配置的网卡的名称</code>
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<code class="bash spaces"> </code><code class="bash plain">addresses: </code><code class="bash comments">#配置的静态ip地址和掩码</code>
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<code class="bash spaces"> </code><code class="bash plain">dhcp4: no </code><code class="bash comments">#关闭DHCP，如果需要打开DHCP则写yes</code>
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<code class="bash spaces"> </code><code class="bash plain">optional: </code><code class="bash functions">true</code>
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<code class="bash spaces"> </code><code class="bash plain">gateway4: 192.168.31.1 </code><code class="bash comments">#网关地址</code>
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<code class="bash spaces"> </code><code class="bash plain">nameservers:</code>
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<code class="bash spaces"> </code><code class="bash plain">addresses: </code><code class="bash comments">#DNS服务器地址，多个DNS服务器地址需要用英文逗号分隔开</code>
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<code class="bash spaces"> </code><code class="bash plain">version: 2</code>
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<code class="bash spaces"> </code><code class="bash plain">renderer: networkd </code><code class="bash comments">#指定后端采用systemd-networkd或者Network Manager，可不填写则默认使用systemd-workd</code>
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根据自己的需要配置好之后保存文件</p>
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<strong>0x02使配置的ip地址生效</strong></p>
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<code class="bash functions">sudo</code> <code class="bash plain">netplan apply</code>
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好了，使用ifconfig命令查看配置的新ip地址是否生效了吧</p>
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<strong>0x03注意事项：</strong></p>
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1、ip地址和DNS服务器地址需要用[]括起来，但是网关地址不需要<br>
2、注意每个冒号后边都要先加一个空格<br>
3、注意每一层前边的缩进，至少比上一层多两个空格</p>
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原文链接：https://blog.csdn.net/fansnn/article/details/105930009</p>
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