From bc15e937a6094da49fd4a71282443e28d5ce939c Mon Sep 17 00:00:00 2001 From: GOLinux Date: Sun, 28 Sep 2014 08:56:11 +0800 Subject: [PATCH] [Translated] 20140925 Linux FAQs with Answers--How to configure a static IP address on CentOS 7.md --- ...nfigure a static IP address on CentOS 7.md | 79 ------------------- ...nfigure a static IP address on CentOS 7.md | 77 ++++++++++++++++++ 2 files changed, 77 insertions(+), 79 deletions(-) delete mode 100644 sources/tech/20140925 Linux FAQs with Answers--How to configure a static IP address on CentOS 7.md create mode 100644 translated/tech/20140925 Linux FAQs with Answers--How to configure a static IP address on CentOS 7.md diff --git a/sources/tech/20140925 Linux FAQs with Answers--How to configure a static IP address on CentOS 7.md b/sources/tech/20140925 Linux FAQs with Answers--How to configure a static IP address on CentOS 7.md deleted file mode 100644 index f61391daca..0000000000 --- a/sources/tech/20140925 Linux FAQs with Answers--How to configure a static IP address on CentOS 7.md +++ /dev/null @@ -1,79 +0,0 @@ -Translating by GOLinux ... -Linux FAQs with Answers--How to configure a static IP address on CentOS 7 -================================================================================ -> **Question**: On CentOS 7, I want to switch from DHCP to static IP address configuration with one of my network interfaces. What is a proper way to assign a static IP address to a network interface permanently on CentOS or RHEL 7? - -If you want to set up a static IP address on a network interface in CentOS 7, there are several different ways to do it, varying depending on whether or not you want to use Network Manager for that. - -Network Manager is a dynamic network control and configuration system that attempts to keep network devices and connections up and active when they are available). CentOS/RHEL 7 comes with Network Manager service installed and enabled by default. - -To verify the status of Network Manager service: - - $ systemctl status NetworkManager.service - -To check which network interface is managed by Network Manager, run: - - $ nmcli dev status - -![](https://farm4.staticflickr.com/3861/15295802711_a102a3574d_z.jpg) - -If the output of nmcli shows "connected" for a particular interface (e.g., enp0s3 in the example), it means that the interface is managed by Network Manager. You can easily disable Network Manager for a particular interface, so that you can configure it on your own for a static IP address. - -Here are **two different ways to assign a static IP address to a network interface on CentOS 7**. We will be configuring a network interface named enp0s3. - -### Configure a Static IP Address without Network Manager ### - -Go to the /etc/sysconfig/network-scripts directory, and locate its configuration file (ifcfg-enp0s3). Create it if not found. - -![](https://farm4.staticflickr.com/3911/15112399977_d3df8e15f5_z.jpg) - -Open the configuration file and edit the following variables: - -![](https://farm4.staticflickr.com/3880/15112184199_f4cbf269a6.jpg) - -In the above, "NM_CONTROLLED=no" indicates that this interface will be set up using this configuration file, instead of being managed by Network Manager service. "ONBOOT=yes" tells the system to bring up the interface during boot. - -Save changes and restart the network service using the following command: - - # systemctl restart network.service - -Now verify that the interface has been properly configured: - - # ip add - -![](https://farm6.staticflickr.com/5593/15112397947_ac69a33fb4_z.jpg) - -### Configure a Static IP Address with Network Manager ### - -If you want to use Network Manager to manage the interface, you can use nmtui (Network Manager Text User Interface) which provides a way to configure Network Manager in a terminal environment. - -Before using nmtui, first set "NM_CONTROLLED=yes" in /etc/sysconfig/network-scripts/ifcfg-enp0s3. - -Now let's install nmtui as follows. - - # yum install NetworkManager-tui - -Then go ahead and edit the Network Manager configuration of enp0s3 interface: - - # nmtui edit enp0s3 - -The following screen will allow us to manually enter the same information that is contained in /etc/sysconfig/network-scripts/ifcfg-enp0s3. - -Use the arrow keys to navigate this screen, press Enter to select from a list of values (or fill in the desired values), and finally click OK at the bottom right: - -![](https://farm4.staticflickr.com/3878/15295804521_4165c97828_z.jpg) - -Finally, restart the network service. - - # systemctl restart network.service - -and you're ready to go. - --------------------------------------------------------------------------------- - -via: http://ask.xmodulo.com/configure-static-ip-address-centos7.html - -译者：[译者ID](https://github.com/译者ID) -校对：[校对者ID](https://github.com/校对者ID) - -本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出 diff --git a/translated/tech/20140925 Linux FAQs with Answers--How to configure a static IP address on CentOS 7.md b/translated/tech/20140925 Linux FAQs with Answers--How to configure a static IP address on CentOS 7.md new file mode 100644 index 0000000000..e126b930f3 --- /dev/null +++ b/translated/tech/20140925 Linux FAQs with Answers--How to configure a static IP address on CentOS 7.md @@ -0,0 +1,77 @@ +Linux有问必答——如何为CentOS 7配置静态IP地址 +================================================================================ +> **问题**：在CentOS 7上，我想要将我其中一个网络接口从DHCP改为静态IP地址配置，如何才能永久为CentOS或RHEL 7上的网络接口分配静态IP地址？ + +如果你想要为CentOS 7中的某个网络接口设置静态IP地址，有几种不同的方法，这取决于你是否想要使用网络管理器。 + +网络管理器是一个动态的网络控制与配置系统，它用于在网络设备可用时保持设备和连接开启并激活。默认情况下，CentOS/RHEL 7安装有网络管理器，并处于启用状态。 + +使用下面的命令来验证网络管理器服务的状态： + + $ systemctl status NetworkManager.service + +运行以下命令来检查受网络管理器管理的网络接口： + + $ nmcli dev status + +![](https://farm4.staticflickr.com/3861/15295802711_a102a3574d_z.jpg) + +如果某个接口的nmcli的输出结果是“已连接”（如本例中的enp0s3），这就是说该接口受网络管理器管理。你可以轻易地为某个特定接口禁用网络管理器，以便你可以自己为它配置一个静态IP地址。 + +下面将介绍**在CentOS 7上为网络接口配置静态IP地址的两种方式**，在例子中我们将对名为enp0s3的网络接口进行配置。 + +### 不使用网络管理配置静态IP地址 ### + +进入/etc/sysconfig/network-scripts目录，找到该接口的配置文件（ifcfg-enp0s3）。如果没有，请创建一个。 + +![](https://farm4.staticflickr.com/3911/15112399977_d3df8e15f5_z.jpg) + +打开配置文件并编辑以下变量： + +![](https://farm4.staticflickr.com/3880/15112184199_f4cbf269a6.jpg) + +在上图中，“NM_CONTROLLED=no”表示该接口将通过该配置进行设置，而不是通过网络管理器进行管理。“ONBOOT=yes”告诉我们，系统将在启动时开启该接口。 + +保存修改并使用以下命令来重启网络服务： + + # systemctl restart network.service + +现在验证接口是否配置正确： + + # ip add + +![](https://farm6.staticflickr.com/5593/15112397947_ac69a33fb4_z.jpg) + +### 使用网络管理器配置静态IP地址 ### +如果你想要使用网络管理器来管理该接口，你可以使用nmtui（网络管理器文本用户界面），它提供了在终端环境中配置配置网络管理器的方式。 + +在使用nmtui之前，首先要在/etc/sysconfig/network-scripts/ifcfg-enp0s3中设置“NM_CONTROLLED=yes”。 + +现在，请按以下方式安装nmtui。 + + # yum install NetworkManager-tui + +然后继续去编辑enp0s3接口的网络管理器配置： + + # nmtui edit enp0s3 + +在下面的屏幕中，我们可以手动输入与/etc/sysconfig/network-scripts/ifcfg-enp0s3中所包含的内容相同的信息。 + +使用箭头键在屏幕中导航，按回车选择值列表中的内容（或填入想要的内容），最后点击屏幕底部右侧的确定按钮。 + +![](https://farm4.staticflickr.com/3878/15295804521_4165c97828_z.jpg) + +最后，重启网络服务。 + + # systemctl restart network.service + +好了，现在一切就绪。 + +-------------------------------------------------------------------------------- + +via: http://ask.xmodulo.com/configure-static-ip-address-centos7.html + +译者：[GOLinux](https://github.com/GOLinux) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出