vmware 的centos7 配置静态ip地址并能正常访问外网

淩亂°似流年 2023-05-29 03:35 11阅读 0赞

# **背景** #

自己在折腾一个lnmp的开发环境，如果不设置静态的ip，开发起来不方便，网上查了一下整理下次用

# **正文** #

## **vmware设置** ##

网络连接选择nat

![format_png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70][]

我们看到nat模式对应的网络适配器是VMnet8，我们到电脑的网络适配器页面查看

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70 1][]

***记下虚拟机的网络适配器占用的ip地址，我们在设置静态ip的时候不能设置这个ip，否则会出现一些问题，这里不细说***

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70 2][]

选择nat模式的配置，点击nat设置

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70 3][]

下图的网关ip需要记下，这个作为我们设置静态ip时候的网关和dns；

当然如果你想改网关ip就在上一步更改设置

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70 4][]

需要注意一下图的使用本地dhcp服务器要勾上

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70 5][]

查看dhcp的分配ip范围，这个也可以根据个人喜好修改

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70 6][]

处理完图上的之后我们进入centos系统中进行设置静态ip

## centos7设置 ##

使用ifconfig命令查看我们现在使用网卡，我这里是ens33，知道名称后我们去配置文件

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70 7][]

**配置文件目录**

/etc/sysconfig/network-scripts/

这里找到对应你网卡的配置文件，我这里是ens33

vim /etc/sysconfig/network-scripts/ifcfg-ens33

下图圈着的是我们新加上的配置，网关和dns要对应上vmware那里设置的nat网关，注意是dns不设置的话，无法正常解析外网网站，ip地址也必须在dhcp分配范围内，

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70 8][]

设置完保存后 ，重启network服务，使配置生效

systemctl restart network

好了，到此我们就已经设置成功，我们可以进行ping或者curl测试一下能否正常外网即可

## **更换网络环境后** ##

**方法一：设置NAT模式的固定的DNS**

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70 9][]

设置网关为dns和一些网上解析速度比较快的dns

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70 10][]

**方法二：临时解决方案，因为再次更换网络环境可能就又会出现**

出现更换网络环境后，ip不能正常访问外网可以直接还原一下，如果设置成默认设置，然后按还原后的ip来重新设置一下静态ip就可以了

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NxbHF1YW4_size_16_color_FFFFFF_t_70 11][]

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