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[#]: subject: (How to Setup Internet in CentOS, RHEL, Rocky Linux Minimal Install)
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[#]: via: (https://www.debugpoint.com/2021/06/setup-internet-minimal-install-server/)
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[#]: author: (Arindam https://www.debugpoint.com/author/admin1/)
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[#]: collector: (lujun9972)
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[#]: translator: (geekpi)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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How to Setup Internet in CentOS, RHEL, Rocky Linux Minimal Install
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======
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Setting up the internet or network is super easy in minimal server
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installations. In this guide, we will explain how you can setup internet
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or network in CentOS, RHEL, Rocky Linux minimal install.
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Once you install the minimal install of any server distributions, you would not have any GUI or desktop environment to set up your network or internet. Hence it is important to know how you can set up internet when you only have access to the terminal. The NetworkManager utility provides necessary tools armed with systemd services to get the job done. Here’s how.
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### Setup Internet in CentOS, RHEL, Rocky Linux Minimal Install
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* After you have completed the installation, boot into the server terminal. Ideally, you should be prompted with a terminal. Login using root or admin account.
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* Then first, try to check the state of the network interface and details using nmcli. The nmcli is a command-line tool for controlling the NetworkManager service. Use the following command to check.
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```
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nmcli device status
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```
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This would display the device name, status etc.
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![nmcli device status][1]
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* Run the tool `nmtui` to configure the network interface. The [nmtui][2] is part of the NetworkManager tool which gives you a nice UI to configure the network. This is part of the package NetworkManager-tui and should be installed by default when you have completed the installation of the minimal server.
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```
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nmtui
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```
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* Click on Edit a connection in the nmtui window.
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![nmtui – Select options][3]
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* Select the interface name
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![Select Interface to Edit][4]
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* In the Edit Connection window, choose Automatic for IPv4 and IPv6. And select Automatically Connect. Press ok once done.
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![nmtui – Edit Connection][5]
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* Restart the NetworkManager service via the [systemd systemctl][6] using the following command.
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```
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systemctl restart NetworkManager
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```
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* If all goes well, you should be connected to the network and internet in the minimal installation of CentOS, RHEL, Rocky Linux server. Provided your network has internet connectivity. You can use ping to verify whether it is working.
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![setup internet minimal server – CentOS Rocky Linux RHEL][7]
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### Additional Tip: Set up Static IP in minimal server
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When you set the network configuration as automatic, the interface dynamically assigns the IP when you connected to the internet. In some situations where you are setting up a local area network (LAN), you may want to assign static IP to your network interface. It’s super easy.
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Open the network configuration script for your network. Change the highlighted part for your own device.
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```
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vi /etc/sysconfig/network-scripts/ifcfg-ens3
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```
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In the above file, add the IP address you desire with property IPADDR. Save the file.
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```
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IPADDR=192.168.0.55
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```
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Add the gateway for your network in `/etc/sysconfig/network`.
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```
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NETWORKING=yes
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HOSTNAME=debugpoint
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GATEWAY=10.1.1.1
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```
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Add any public DNS server in resolv.conf located at `/etc/resolv.conf`.
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nameserver 8.8.8.8
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nameserver 8.8.4.4
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And restart the network service.
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```
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systemctl restart NetworkManager
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```
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This will complete the setup of the static IP. You can also check the IP details using `ip addr` command.
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I hope this guide helps you to set up the network, internet, and static IP in your minimal server. Let me know in the comment section, if you may have any questions.
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* * *
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--------------------------------------------------------------------------------
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via: https://www.debugpoint.com/2021/06/setup-internet-minimal-install-server/
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作者：[Arindam][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://www.debugpoint.com/author/admin1/
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[b]: https://github.com/lujun9972
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[1]: https://www.debugpoint.com/blog/wp-content/uploads/2021/06/nmcli-device-status.jpg
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[2]: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-configuring_ip_networking_with_nmtui
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[3]: https://www.debugpoint.com/blog/wp-content/uploads/2021/06/nmtui-Select-options.jpg
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[4]: https://www.debugpoint.com/blog/wp-content/uploads/2021/06/Select-Interface-to-Edit.jpg
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[5]: https://www.debugpoint.com/blog/wp-content/uploads/2021/06/nmtui-Edit-Connection.jpg
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[6]: https://www.debugpoint.com/2020/12/systemd-systemctl-service/
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[7]: https://www.debugpoint.com/blog/wp-content/uploads/2021/06/setup-internet-minimal-server-CentOS-Rocky-Linux-RHEL.jpg
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@ -0,0 +1,133 @@
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[#]: subject: (How to Setup Internet in CentOS, RHEL, Rocky Linux Minimal Install)
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[#]: via: (https://www.debugpoint.com/2021/06/setup-internet-minimal-install-server/)
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[#]: author: (Arindam https://www.debugpoint.com/author/admin1/)
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[#]: collector: (lujun9972)
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[#]: translator: (geekpi)
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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如何在 CentOS、RHEL、Rocky Linux 最小化安装中设置互联网
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======
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在最小安装的服务器中，设置互联网或网络是非常容易的。在本指南中，我们将解释如何在 CentOS、RHEL、Rocky Linux 最小安装中设置互联网或网络。
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当你安装了任何服务器发行版的最小安装，你就没有任何 GUI 或桌面环境来设置你的网络或互联网。因此，当你只能使用终端时，知道如何设置互联网是很重要的。NetworkManager 工具提供了必要的工具和 systemd 服务来完成这项工作。以下是具体方法。
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### 在 CentOS、RHEL、Rocky Linux 最小化安装中设置互联网
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* 完成安装后，启动服务器终端。理想情况下，你应该会看到提示。使用 root 或 admin 账户登录。
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* 然后，首先尝试使用 nmcli 检查网络接口的状态和细节。nmcli 是一个控制 NetworkManager 服务的命令行工具。使用以下命令进行检查。
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```
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nmcli device status
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```
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这将显示设备名称、状态等。
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![nmcli device status][1]
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* 运行工具 `nmtui` 来配置网络接口。[nmtui][2] 是 NetworkManager 工具的一部分，它为你提供了一个漂亮的用户界面来配置网络。这是 NetworkManager-tui 包的一部分，当你完成最小服务器的安装后，它应该默认安装。
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```
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nmtui
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```
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* 在 nmtui 窗口中点击编辑一个连接。
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![nmtui – Select options][3]
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* 选择接口名称
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![Select Interface to Edit][4]
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* 在编辑连接窗口，为 IPv4 和 IPv6 选择自动。并选择自动连接。完成后按 OK。
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![nmtui – Edit Connection][5]
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* 使用下面的命令，通过 [systemd systemctl][6] 重新启动 NetworkManager 服务。
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```
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systemctl restart NetworkManager
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```
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* 如果一切顺利，你应该在 CentOS、RHEL、Rocky Linux 服务器的最小安装中连接到网络和互联网。前提是你的网络有互联网连接。你可以用 ping 来验证它是否正常。
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![setup internet minimal server – CentOS Rocky Linux RHEL][7]
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### 额外技巧：在最小服务器中设置静态 IP
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当你把网络配置设置为自动，当你连接到互联网时，接口会动态地分配 IP。在某些情况下，当你建立一个局域网 （LAN） 时，你可能想给你的网络接口分配静态 IP。这超级简单。
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打开你的网络的网络配置脚本。根据你的设备修改高亮部分。
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```
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vi /etc/sysconfig/network-scripts/ifcfg-ens3
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```
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在上面的文件中，用 IPADDR 属性添加你想要的 IP 地址。保存该文件。
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```
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IPADDR=192.168.0.55
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```
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在 `/etc/sysconfig/network` 中为你的网络添加网关。
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```
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NETWORKING=yes
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HOSTNAME=debugpoint
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GATEWAY=10.1.1.1
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```
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在位于 `/etc/resolv.conf` 的 resolv.conf 中添加任意公共 DNS 服务器。
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nameserver 8.8.8.8
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nameserver 8.8.4.4
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并重新启动网络服务。
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```
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systemctl restart NetworkManager
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```
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这样就完成了静态 IP 的设置。你也可以使用 `ip addr` 命令检查 IP 的详细信息。
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我希望这个指南能帮助你在你的最小服务器中设置网络、互联网和静态 IP。如果你有任何问题，请在评论区告诉我。
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* * *
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--------------------------------------------------------------------------------
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via: https://www.debugpoint.com/2021/06/setup-internet-minimal-install-server/
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作者：[Arindam][a]
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选题：[lujun9972][b]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://www.debugpoint.com/author/admin1/
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[b]: https://github.com/lujun9972
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[1]: https://www.debugpoint.com/blog/wp-content/uploads/2021/06/nmcli-device-status.jpg
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[2]: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-configuring_ip_networking_with_nmtui
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[3]: https://www.debugpoint.com/blog/wp-content/uploads/2021/06/nmtui-Select-options.jpg
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[4]: https://www.debugpoint.com/blog/wp-content/uploads/2021/06/Select-Interface-to-Edit.jpg
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[5]: https://www.debugpoint.com/blog/wp-content/uploads/2021/06/nmtui-Edit-Connection.jpg
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[6]: https://www.debugpoint.com/2020/12/systemd-systemctl-service/
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[7]: https://www.debugpoint.com/blog/wp-content/uploads/2021/06/setup-internet-minimal-server-CentOS-Rocky-Linux-RHEL.jpg
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