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geekpi
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[#]: subject: "How to Set Static IP Address on Ubuntu Server 22.04"
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[#]: via: "https://www.linuxtechi.com/static-ip-address-on-ubuntu-server/"
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[#]: author: "Pradeep Kumar https://www.linuxtechi.com/author/pradeep/"
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[#]: collector: "lkxed"
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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 Set Static IP Address on Ubuntu Server 22.04
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======
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In this post, we will cover how to set static ip address on Ubuntu server 22.04.
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It is highly recommended to have a static ip on linux server because it would be persistent across the reboot. Static IP plays an important role for servers like Mail Server, Web Server and File server etc.
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##### Prerequisites
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* Minimal Installed Ubuntu Server 22.04
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* Regular User with sudo admin rights
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In Ubuntu server 22.04, networking is controlled by netplan utility, so we will use netplan to configure static ip address on Ubuntu server.
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Note: we cannot use [nmcli utiltity][1] as it is not the part of default installation on Ubuntu server.
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### Setting up Static IP address on Ubuntu Server 22.04
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Login to your Ubuntu server 22.04, look for the netplan configuration file. It is located under /etc/netplan directory.
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```
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$ cd /etc/netplan/
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$ ls -l
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total 4
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-rw-r--r-- 1 root root 116 Oct 12 04:03 00-installer-config.yaml
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$
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```
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Run below cat command to view the contents of ‘00-installer-config.yaml’
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Note: Name of configuration file may differ as your per setup. As it is an yaml file, so make sure to maintain the indentation and syntax while editing.
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```
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$ cat 00-installer-config.yaml
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```
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Output,
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![Default-Content-netplan-ubuntu-server][2]
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As per above output, it says that we have ens33 interface and it is getting ip from dhcp server. Alternate way to view interface name is via ip command.
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Now, to configure static ip in place of dhcp, edit netplan configuration file using vi or nano editor and add the following content.
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```
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$ sudo vi 00-installer-config.yaml
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# This is the network config written by 'subiquity'
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network:
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renderer: networkd
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ethernets:
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ens33:
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addresses:
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- 192.168.1.247/24
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nameservers:
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addresses: [4.2.2.2, 8.8.8.8]
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routes:
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- to: default
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via: 192.168.1.1
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version: 2
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```
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save and close the file.
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![Updated-Netplan-Config-File-Content-Ubuntu-Server][3]
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In the above file we have used following,
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* ens33 is the interface name
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* addresses are used to set the static ip
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* nameservers used to specify the DNS server ips
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* routes used to specify the default gateway
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Note: Change the IP details and interface name as per your environment.
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To make above changes into the effect the apply these changes using following netplan command,
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```
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$ sudo netplan apply
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```
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Run following ip command to view the ip address on interface,
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```
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$ ip addr show ens33
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```
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To view the default route, run
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```
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$ ip route show
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```
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Output of above commands,
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![ip-addr-route-command-output-ubuntu-server][4]
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Perfect, above commands’ output confirms that static ip and route has been configured successfully.
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That’s all from this post. Kindly do post your queries and feedback in below comments section.
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--------------------------------------------------------------------------------
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via: https://www.linuxtechi.com/static-ip-address-on-ubuntu-server/
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作者：[Pradeep Kumar][a]
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选题：[lkxed][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.linuxtechi.com/author/pradeep/
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[b]: https://github.com/lkxed
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[1]: https://www.linuxtechi.com/configure-ip-with-nmcli-command-linux/
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[2]: https://www.linuxtechi.com/wp-content/uploads/2022/10/Default-Content-netplan-ubuntu-server.png
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[3]: https://www.linuxtechi.com/wp-content/uploads/2022/10/Updated-Netplan-Config-File-Content-Ubuntu-Server.png
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[4]: https://www.linuxtechi.com/wp-content/uploads/2022/10/ip-addr-route-command-output-ubuntu-server.png
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@ -0,0 +1,125 @@
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[#]: subject: "How to Set Static IP Address on Ubuntu Server 22.04"
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[#]: via: "https://www.linuxtechi.com/static-ip-address-on-ubuntu-server/"
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[#]: author: "Pradeep Kumar https://www.linuxtechi.com/author/pradeep/"
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[#]: collector: "lkxed"
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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 Ubuntu Server 22.04 上设置静态 IP 地址
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======
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在这篇文章中，我们将介绍如何在 Ubuntu Server 22.04 上设置静态 IP 地址。
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强烈建议在 linux 服务器上使用静态 ip，因为它会在重启后保持不变。静态 IP 对邮件服务器、Web 服务器和文件服务器等服务器起着重要作用。
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##### 先决条件
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* 最小安装的 Ubuntu Server 22.04
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* 具有 sudo 管理员权限的普通用户
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在 Ubuntu Server 22.04 中，网络由 netplan 程序控制，因此我们将使用 netplan 在 Ubuntu Server 上配置静态 IP 地址。
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注意：我们不能使用 [nmcli 程序][1]，因为它不是 Ubuntu Server 上默认安装的一部分。
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### 在 Ubuntu Server 22.04 上设置静态 IP 地址
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登录到你的 Ubuntu Server 22.04，查找 netplan 配置文件。它位于 /etc/netplan 目录下。
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```
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$ cd /etc/netplan/
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$ ls -l
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total 4
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-rw-r--r-- 1 root root 116 Oct 12 04:03 00-installer-config.yaml
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$
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```
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运行以下 cat 命令以查看 “00-installer-config.yaml” 的内容
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注意：配置文件的名称可能因你的设置而异。由于它是一个 yaml 文件，因此请确保在编辑时保持缩进和语法。
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```
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$ cat 00-installer-config.yaml
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```
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输出:
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![Default-Content-netplan-ubuntu-server][2]
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根据上面的输出，它说我们有 ens33 接口，它正在从 dhcp 服务器获取 ip。查看接口名称的另一种方法是通过 ip 命令。
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现在，要配置静态 ip 代替 dhcp，使用 vi 或 nano 编辑器编辑 netplan 配置文件并添加以下内容。
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```
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$ sudo vi 00-installer-config.yaml
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# This is the network config written by 'subiquity'
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network:
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renderer: networkd
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ethernets:
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ens33:
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addresses:
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- 192.168.1.247/24
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nameservers:
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addresses: [4.2.2.2, 8.8.8.8]
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routes:
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- to: default
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via: 192.168.1.1
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version: 2
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```
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保存并关闭文件。
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![Updated-Netplan-Config-File-Content-Ubuntu-Server][3]
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在上面的文件中，我们使用了以下内容，
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* ens33 为接口名称
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* 用于设置静态 ip 的地址
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* nameservers 用于指定 DNS 服务器的 ip
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* 用于指定默认网关的路由
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注意：根据你的环境更改 IP 详细信息和接口名称。
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要是上述修改生效，请使用以下 netplan 命令应用这些更改：
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```
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$ sudo netplan apply
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```
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运行以下 ip 命令查看接口上的 ip 地址：
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```
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$ ip addr show ens33
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```
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要查看默认路由，请运行：
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```
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$ ip route show
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```
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上述命令的输出。
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![ip-addr-route-command-output-ubuntu-server][4]
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完美，以上命令的输出确认静态ip和路由配置成功。
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这就是这篇文章的全部内容。请在下面的评论部分发表你的问题和反馈。
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--------------------------------------------------------------------------------
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via: https://www.linuxtechi.com/static-ip-address-on-ubuntu-server/
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作者：[Pradeep Kumar][a]
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选题：[lkxed][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.linuxtechi.com/author/pradeep/
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[b]: https://github.com/lkxed
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[1]: https://www.linuxtechi.com/configure-ip-with-nmcli-command-linux/
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[2]: https://www.linuxtechi.com/wp-content/uploads/2022/10/Default-Content-netplan-ubuntu-server.png
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[3]: https://www.linuxtechi.com/wp-content/uploads/2022/10/Updated-Netplan-Config-File-Content-Ubuntu-Server.png
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[4]: https://www.linuxtechi.com/wp-content/uploads/2022/10/ip-addr-route-command-output-ubuntu-server.png
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