linux之cenos7修改ip（临时和永久）

冷不防 2022-12-27 08:16 144阅读 0赞

### 1，临时修改ip ###

ifconfig 网卡名称 ip地址 – 直接修改网卡ip，重启失效

//设置ip
     [root@localhost ~]# ifconfig ens33 192.168.43.137
    //重启网络
     [root@localhost ~]# systemctl restart network

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70]  
![在这里插入图片描述][2020120910272870.png]

### 2，添加多个临时ip ###

ifconfig 网卡名称:0 第一个IP地址 ( netmask子网掩码)-增加一个IP，子网掩码默认255.255.255.0  
config 网卡名称:1 第二个IP地址 ( netmask子网掩码)-增加一个IP

//给网卡添加多个ip
    [root@localhost ~]# ifconfig ens33:0 192.168.43.11 up
    [root@localhost ~]# ifconfig ens33:1 192.168.43.12 up
    //重启后失效
     [root@localhost ~]# systemctl restart network

添加多个临时ip  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70 1]  
删除临时ip  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70 2]

### 3，永久修改ip（使用nmtui文本框修改ip ###

）

[root@localhost ~]# nmtui

![20201209104805241.png][] ![20201209104436128.png][] ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70 3][] ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70 4][] ![Image 1][] ![Image 1][]

一直返回然后保存退出，重启后生效

### 3，永久修改ip（ 修改配置文件修改ip） ###

[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-ens33
    //打开后注意的地方
    BOOTPROTO=none         #等号后面写：dhcp表示动态获取ip地址，statis表示静态ip，none表示不指定，就是静态
    ONBOOT=yes			# 在系统引导是是否激活此设备

#### vim快捷键: ####

i:进入插入模式  
保存:先按eSc键,再输入:Wq  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70 5]

##### 有个需要注意的地方，当配置完ip后，如果无法访问外网，呢么修改如下 #####

[root@localhost network-scripts]# vi /etc/resolv.conf

![在这里插入图片描述][20201209123041845.png]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70]: /images/20221120/8c8dac65b89b486aa8e21038654dac0c.png
[2020120910272870.png]: https://img-blog.csdnimg.cn/2020120910272870.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20201209103456631.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70 2]: https://img-blog.csdnimg.cn/20201209103906761.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg==,size_16,color_FFFFFF,t_70
[20201209104805241.png]: https://img-blog.csdnimg.cn/20201209104805241.png
[20201209104436128.png]: https://img-blog.csdnimg.cn/20201209104436128.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70 3]: https://img-blog.csdnimg.cn/20201209104732169.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg==,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70 4]: https://img-blog.csdnimg.cn/20201209104930653.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg==,size_16,color_FFFFFF,t_70
[Image 1]: 
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg_size_16_color_FFFFFF_t_70 5]: https://img-blog.csdnimg.cn/20201209111209330.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NzE4Mg==,size_16,color_FFFFFF,t_70
[20201209123041845.png]: https://img-blog.csdnimg.cn/20201209123041845.png