Netplan Static Ip

of your network interface using Netplan. Finally restart networking service. The client normally doesn’t. # ifupdown has been replaced by netplan(5) on this system. 04 LTS 中配置 IP 地址的方法和以往使用的配置方法有很大的不同。和旧版本的不同之处在于,Ubuntu 18. This post will guide you through doing basic configurations, such as assigning a static IP or enabling DHCP on an interface. July 2, 2018. Found a great resource on more properties you could declare in this file specific to your network (static IP, VLANS, bonds, routes etc). Before we proceed with how to change from DHCP to Static IP Address in Ubuntu 17. This guides describes a simple way of how to configure static IP addresses on Ubuntu 18. ifupdown has been replaced by netplan(5) on this systems. 10 onwards - currently supports WPA2 Personal networks, and open (unencrypted) networks only. How to configure static IP address on Ubuntu 18. 04发行,第一时间下载安装了SERVER版本。使用VM14版本的虚拟机,开始使用DHCP获得IP地址,没有意外,可以直接上网。然而在更改VM的网络模式为桥接模式时,想把虚拟机设为固定IP时,出现故障,一直不能获得地址,也上不了网。. In this tutorial, We are going to see how to setup network on ubuntu 18. 04 LTS is significantly different than the older methods. The DL machine should be DHCP registered to an IP address. 98-1-x86_64. How to set a static IP in Ubuntu 18. Netplan is a simplified interface for configuring Linux networking, where YAML files in /etc/netplan are used to generate configuration information for either NetworkManager or — in the case of new Ubuntu Server installations - systemd-networkd. The method of configuring IP address on Ubuntu 18. I'm sure there is a magical combination of configuration files that will make things work, but I've spent a lot of time, and it always behaves a little oddly. Online-iT How To Static IP Ubuntu 18. Often, also the network mask or the broadcast address need to be specified. 04 container images. 141 and it is a. 04 и netplan. 04 menggunakan Netplan, anda hanya perlu membuat berkas konfigurasi. It will continue to get such a dynamic IP (keeps changing) address until you decide to change it to (more…). note you should change the ip 192. The solution to the problem above is still (in February 2019) to perform a clean install with Netplan, and then manually remove open-vm-tools and replace it with VMware’s official tools, since open-vm-tools do not yet support Ubuntu’s weirdness even 10 months after 18. 10 Server uses the package netplan instead, which configures systemd-networkd. 10)より、ネットワーク設定はNetplanで行うことになりました。 NICへ普通にアドレスを振る方法はすでにいろいろな方がすでに紹介されていますので、ここではネットワークブリッジの構築方法を紹介したいと思います。. 10 instructions do work, it’s not the recommended way according to Ubuntu and most websites I’ve visited around the Internet. See /etc/netplan for current configuration. Identify available network interface with ip command. The idea with netplan is that “You simply create a YAML description of the required network interfaces and what each should be configured to do”. In questo articolo andremo a descrivere come impostare un ip statico su Server Ubuntu 18. Configure a Static IP Address with Netplan. Netplan – How To Configure Static IP Address in Ubuntu 18. With DHCP, you get IP address, subnet mask, broadcast address, Gateway IP and DNS ip addresses. In the preceding example, we configured the enp0s3 interface to lease IP addresses from the DHCP Server. It allows you to configure a network interface using YAML abstraction. 10服务器 static IP netplan如何设置网络掩码 像这里描述的: 17. It is a new command line network configuration utility, to configure IP address. 04 de network netplan statik ip adresi konfigrasyonu (Yeni Ubuntu 18. $ ifconfig -a OR $ ip addr. pid` sudo rm /run/dhclient. Netplan and ifupdown can coexist, or you can remove netplan: the package is netplan. Let's say, you want to configure your network interface ens33 as follows:. Ubuntu introduced netplan utlity to configure network on ubuntu 18. 53 nameserver. 04 menggunakan Netplan, anda hanya perlu membuat berkas konfigurasi. Configure Static IP Address In Ubuntu 18. 10 that reads the YAML file and generates all the confirguration for renderer tool ( NetworkManager or networkd ). 04 LTS by Lotfi Waderni September 14, 2018 On ubuntu 18. To configure static IP Address, you need to update or edit network configuration file to assign an Static IP Address to a system. Unfortunately Netplan can not brings up Open vSwitch bridges and ports like ifupdown does. Netplan uses YAML description files to configure network interfaces and, from those descriptions, will generate the necessary configuration options for any given renderer tool. To find out more, including how to control cookies, see here. How to Configure a Static IP Address on Ubuntu 18. 04 LTS passerbyj sysadmin May 26, 2019 May 26, 2019 0 Minutes Edit the file /etc/netplan/50-cloud-init. 10, In this article, we will explain how to configure a network static or dynamic IP address for a network interface in Ubuntu 17. Add the gateway4 line with the gateway IP of the router. apt install ifupdown resolvconf. If you don’t do this, incoming connections are never answered. The example below show how such a tunnel might be configured. Validar o IP que esta configurado como DHCP. 04 ARM Image and Netplan. Add static addresses to the interface in addition to the ones received through DHCP or RA. Edit the new network/interfaces file. Standard static routes as well as policy routing using routing tables are supported via the networkd backend. Then you need to execute sudo netplan apply and that should apply your new configuration. 10 com Netplan Aprenda a definir um ip estático na rede utilizando o Ubuntu. 10 Artful, Netplan has been introduced as the new network configuration utility. To get the MAC address, use lshw to list the details of your server’s network-class. Now i upgraded a VM to Ubuntu 18 and i need a example for the new netplan Configuration. I am currently using Newton with ubuntu 16. NetplanFor this week's Bionic test blitz I am looking at Netplan! Netplan enables easily configuring networking on a system via YAML files. sudo netplan try sudo netplan --debug apply sudo netplan config show. July 2, 2018. I wanted to make sure the IP was displayed regardless of if the IP was static or DHCP. To configure static IP Address, you need to update or edit network configuration file to assign an Static IP Address to a system. Vi anvender cookies for at sikre at vi giver dig den bedst mulige oplevelse af vores website. It is a new command line network configuration utility, to configure IP address. 04 die Distributoren entschieden haben die Netzwerkverbindungen mit Netplan einzurichten. Как я понял, теперь в Ubuntu 18. Here comes netplan in play. 04 uses Netplan , a new command line network configuration utility, to configure IP address. If you decide to use DHCP address, ensure your Router is capable to serving DHCP. I am assuming it is a Public Static IP. In this new approach, we no longer use /etc/network/interfaces file to configure IP address rather we use a YAML file. 0 will be sent over this interface. sudo cloud-init clean sudo cloud-init init sudo netplan apply. 10 Configure Static IP Address Command Line So without going into too much detail, you now need to know about netplan in order to configure Ubuntu NIC's. restart machine sudo shutdown -r now. NetPlan is a new network configuration tool introduced in Ubuntu 17. Netplan is a YAML based configuration system, which is designed to simplify the configuration process. 10 (Artful Aardvark) Netplan is a YAML network configuration abstraction for various backends (NetworkManager, networkd). 240 through 10. Netplan 是一个在某些 Linux 发行版上配置网络连接的命令行工具。Netplan 使用 YAML 描述文件来配置网络接口,然后,通过这些描述为任何给定的呈现工具生成必要的配置选项。 我将向你展示如何在 Linux 上使用 Netplan 配置静态 IP 地址和 DHCP 地址。. Quick Notes: Setting Static IP address in Ubuntu 18. Ubuntu 18 LTS netplan 网络配置. sudo vi /etc/netplan. SETTING UP A DHCP SERVER. Netplan wird maßgeblich von Canonical entwickelt. 6) sudo netplan try. been a long time the brackets threw me for a sec # This file describes the network interfaces available on your system # For more information, see netplan(5). 04 Netplan을 사용한 Static IP 설정 ubuntu19. 04 LTS is significantly different than the older methods. It has been a few years since I last touched a Linux box. This is a yaml based configuration system, which should simplify the process. Anywhow, Ubuntu 18. Before we proceed with how to change from DHCP to Static IP Address in Ubuntu 17. 99 into the Preferred DNS Server field. To sum up: eth0 which is the WAN, gets IP from internet provider’s modem. Press button, get result. 1- ابتدا دستور زیر را وارد کنید تا به دایرکتوری Netplan بروید. Netplan is the default network interface manager in Ubuntu Server 19. I was reluctant to change that much of. In this tutorial, we are going to learn how to configure static IP Addresses on Ubuntu 18. Configure Static IP Address in Ubuntu 18. 04 LTS is completely different than the previous versions. $ ifconfig -a OR $ ip addr. In this quick tutorial, we are going to show you how to setup, configure a static, fixed IP address on ubuntu 18. Give your attention please. Netplan is a utility for easily configuring networking on a linux system. Netplan reads network configuration from /etc/netplan/*. Navigate to /etc/netplan/ directory and locate your current network congratulation file: $ cd /etc/netplan/ $ ls 01-network-manager-all. 04 uses now Netplan to configure the network interfaces, so the configuration must be done in the file /etc/netplan/50-cloud-init. So I want show how to setup static ip address on ubuntu 19. A common use of tunnels is to enable IPv6 connectivity on networks that only support IPv4. Netplan should succeed and apply the DHCP configuration. Add the following to your startup scripts (i. 15, Ocak, 15 nsy Bilge (135k puan) 18. We will see both static and dynamic IP configuration. Debian 7 through 9 all use ifup and ifdown to manage networking. To configure a static IP address on your Ubuntu 18. The domain netplan. Linux - Network Configuration (ip, route, dhclient, systemd-resolve, netplan) Eli the Computer Guy Linux - Introduction , Linux (2019) Configuring Networking at the command line in Linux can be confusing. The new method. sudo netplan apply. it never changes. Download netplan-0. Tecmint: Netplan is a new command-line network configuration utility to manage and configure network settings easily in Ubuntu systems. I want to show you how to use Netplan on Linux, to configure a static IP address and a DHCP address. 04 uses the NetPlan utility. 04 LTS or 17. 10 - Direcciones IPv4 & IPv6 Estáticas (Netplan). Click to share on Facebook (Opens in new window) Click to share on Twitter (Opens in new window) Click to share on LinkedIn (Opens in new window). I only have one machine configured with a static IP and that's because it acts as a server for the outside world. 04发行,第一时间下载安装了SERVER版本。使用VM14版本的虚拟机,开始使用DHCP获得IP地址,没有意外,可以直接上网。然而在更改VM的网络模式为桥接模式时,想把虚拟机设为固定IP时,出现故障,一直不能获得地址,也上不了网。. Notice: Undefined index: HTTP_REFERER in /home/sandbox/public_html/paddc-wp/h5vc08g/jo1fl. 04 Server using netplan. Edit the yaml file and follow the template below. READ: How To Configure Static IP Address in Ubuntu 18. 10 server and desktop…. # ifupdown has been replaced by netplan(5) on this system. I'm going to show you just that, such that you can configure a static IP address in Ubuntu Server 18. I've been scratching my head on this one for a while. 10)より、ネットワーク設定はNetplanで行うことになりました。 NICへ普通にアドレスを振る方法はすでにいろいろな方がすでに紹介されていますので、ここではネットワークブリッジの構築方法を紹介したいと思います。. 04 LTS with Netplan configuration tool. , dhclient command. Still don’t know why Ubuntu adopts netplan … and why netplan does not want to support IP alias. 04 LTS 中配置 IP 地址的方法和以往使用的配置方法有很大的不同。和旧版本的不同之处在于,Ubuntu 18. Now i upgraded a VM to Ubuntu 18 and i need a example for the new netplan Configuration. Press button, get result. For example you might find there a default netplan configuration file called 01-netcfg. Then, use a netplan configuration to set the static IP address for Ubuntu 18. yaml”: DHCP: [email protected]:~$ cat /etc/netplan/50. XX), you might have noticed that the package to configure the network changed. 123/32] Une liste d'adresses IP à affecter à une interface. U 0 0 0 eth0 [email protected] ubuntu1804daily 2:~$ cat /etc/netplan/ 01-netcfg. A static IP. 04 without a graphical interface and configured it to use a static IP address. 10 that reads the YAML file and generates all the confirguration for renderer tool ( NetworkManager or networkd ). io uses a Commercial suffix and it's server(s) are located in N/A with the IP number 162. I went to clone my Server 2012 VM and syspreped it before hand. In dieser Schritt-für-Schritt Anleitung wird beschrieben, wie man die IP Adresse unter Ubuntu ohne GUI einfach ändern kann. Set IP address. فایل کانفیگ netplan را با استفاده از ادیتور متنی خود باز کنید. XX), you might have noticed that the package to configure the network changed. sudo netplan apply Configuring a DHCP address with Netplan. How to Configure Static IP Address on Ubuntu 18 04 Read more. IP and Network Management Notes. I want to show you how to use Netplan on Linux, to configure a static IP address and a DHCP address. Η netplan στελεχώνεται από επιστημονικό προσωπικό, το οποίο με διαρκή εκπαίδευση - κατάρτιση προτείνει και παρέχει υπηρεσίες επόμενης γενεάς, ανταποκρινόμενο στη ραγδαία ανάπτυξη του χώρου της πληροφορικής. I don't know much about networking but I always thought an interface can't have static and dynamic IP at the same time. Airline Network Modeling. While most IP networks use DHCP for address assignment, sometimes a static IP address makes more sense. Attention si vous recevez l'erreur "ifupdown has been replaced by netplan(5) on this system. It allows you to configure a network interface using YAML abstraction. ネットワークの設定方法が変わった Ubuntu17. 10 will not accept static IP Ubuntu 17. of your network interface using Netplan. I figured out, Ubuntu is using Netplan v2 and Proxmox does not Support netplan v2, right? Any ideas on how to achieve proxmox cloud-init to configure Ubuntu 18. Open the netplan configuration file using your text editor as shown. 04 com netplan O Ubuntu vem utilizando desde a versão 17. GitHub Gist: instantly share code, notes, and snippets. By default, a bridge will change interface's MAC address, some hostings (i. yaml format), so the indentation of the lines is important! Here is an example of a static IPv4 address 192. netPlan 을 통한 Static IP 설정 아마 디폴트로 세팅했다면 아래와 같이 기본 인터페이스 설정이 존재한다. Now you configure the NICs using netplan. Routing Complex routing is possible with netplan. You have to copy and paste below lines to your file without any modification. Let us find out the default network configuration file: $ ls /etc/netplan/ 50-cloud-init. Netplan supports SIT, GRE, IP-in-IP (ipip, ipip6, ip6ip6), IP6GRE, VTI and VTI6 tunnels. Tecmint: Netplan is a new command-line network configuration utility to manage and configure network settings easily in Ubuntu systems. 从现在起,您的系统将从路由器动态获取IP地址。 你可以通过查看netplan手册页找到更多信息和配置选项。 man netplan. NetPlan is a new network configuration tool introduced in Ubuntu 17. But I discovered that Ubuntu 18. Static ip в Ubuntu 18. io uses a Commercial suffix and it's server(s) are located in N/A with the IP number 162. 191, and you will also want to get the IP addresses for the 8 physical hosts (10. Then you need to execute sudo netplan apply and that should apply your new configuration. If you are currently using a static IP address for your server or you wish to switch to using a static IP address for your server then change the contents of the file as follows: obviously you must substitute the values for address, broadcast, netmask & gateway to those applicable to your own network. Set a static IP on Ubuntu with netplan Posted on Eki 17, 2017 in LINUX If you can not set static IP during or after ubuntu 17. I'm going to show you just that, such that you can configure a static IP address in Ubuntu Server 18. 99 into the Preferred DNS Server field. ip addr show. And create this netplan config file for a. 239 on the 192. 20 and it is a. The guide makes several assumptions about your network configuration and is for XP. If you’d like to configure your Ubuntu server to run on DHCP (on botjh ipv4 and ipv6) instead of a static IP address, see the configuration below. Para establecer una dirección IP dinámica para la interfaz enp0s3, puedes dejar el archivo de configuración predeterminado de netplan YAML tal y como está, o si se ha establecido una IP estática, puedes configurar DHCP con la siguiente configuración:. 1 dev ens33 proto static 192. You can easily change or set a static IP address on your Ubuntu system. 04采用netplan作为网络配置管理,与16. Assign Static IP to Veeam PN ver2 By default, Veeam PN ver2 will use dhcp. You simply create a YAML description of the required network interfaces and what each should be configured to do. The network and netmask lines define what range of IP address are available on this interface. 04 menggunakan Netplan, anda hanya perlu membuat berkas konfigurasi. Static IP address for Ubuntu Server 18. 144 will be your local server IP address. Configure Static IP Addresses with Netplan On Ubuntu 18. 04 Desktop? Steps to set the static IP address on your Ubuntu Desktop system. To get the MAC address, use lshw to list the details of your server’s network-class. Ubuntu Server 18. It is used to connect to an IP camera, home file server, game server, and many other devices. In Azure specifically, we assign static ip address on Azure Resource side and normally this is taken to Guest OS by dhcp. It works pretty well but leaves some ambiguity during failback. The idea with netplan is that “You simply create a YAML description of the required network interfaces and what each should be configured to do”. However, the enp0s8 ethernet interface has not been configured and has no static IP address. I'll be demonstrating on Ubuntu Server 18. Static and DHCP Addressing. Leveraging Netconf to auto configure Juniper routing engine. Watch Queue Queue. Open the netplan configuration file using your text editor as shown below. routes (mapping) The routes block defines standard static routes for an interface. 04 "netplan" distantdark Internet Security , Ubuntu July 4, 2019 1 Minute If you are using Ubuntu Server version 18. 10 Artful, Netplan has been introduced as the new network configuration utility. This will essentially reset your Wi-Fi. In this example, we are going to configure a static IP for the enp0s8 ethernet network interface. In today’s guide, we are going to see how to configure a static IP address on Ubuntu server 18. Netplan 是一个在某些 Linux 发行版上配置网络连接的命令行工具。Netplan 使用 YAML 描述文件来配置网络接口,然后,通过这些描述为任何给定的呈现工具生成必要的配置选项。 我将向你展示如何在 Linux 上使用 Netplan 配置静态 IP 地址和 DHCP 地址。. Tunnels allow an administrator to extend networks across the Internet by configuring two endpoints that will connect a special tunnel interface and do the routing required. Now that we have the Interface ID and we can set the static IP to it. # The loopback network interface auto lo eth0 iface lo inet loopback # This is a list of hotpluggable network interfaces. We can list all attached network interfaces on the server using the “ifconfig” or “ip a” command. Default routing is used only in stub networks. 04) June 21, 2018. Set a static IP on Ubuntu with netplan Posted on Eki 17, 2017 in LINUX If you can not set static IP during or after ubuntu 17. 253 for the network defined above. The name Bionic Beaver or netplan. [email protected]:~# ip route show default via 192. # ip addr. When to Use Default Routing. It covers the network configuration for all recent Ubuntu versions and includes instructions to configure a static IP address, set the hostname and configure name resolving. change ip static ubuntu 17. netplan reads network configuration from /etc/nplan/*. In this tutorial, We are going to see how to setup network on ubuntu 18. With DHCP, you get IP address, subnet mask, broadcast address, Gateway IP and DNS ip addresses. In the first instance, you will need to find out the what the current IP address is and this can be done with the following command. To configure dynamic address, just leave the default configuration file as the way it is. I've followed/looked at several guides (like this one) and the netplan example page on how to do the above. 04 и netplan. Change into the /etc/netplan directory with the command cd /etc/netplan. I want to show you how to use Netplan on Linux, to configure a static IP address and a DHCP address. 04 Desktop which are already available in the following link:. by Lotfi Waderni September 14, 2018. Then click Apply when you’re finished. Unfotunately, I cannot access the internet from the server. The domain netplan. In this tutorial, we are going to learn how to configure static IP Addresses on Ubuntu 18. your server’s IP, ending with 254), and enter 213. Как я понял, теперь в Ubuntu 18. It covers the network configuration for all recent Ubuntu versions and includes instructions to configure a static IP address, set the hostname and configure name resolving. The desktop provides an attractive GUI for working with it. 99 IPV6ADDR=/64 IPV6INIT=yes IPV6_DEFAULTGW=fe80::1%eth0 IPV6_DEFAULTDEV=eth0. So you’re done ^^ Have a Nice Day… About Netplan. Configuring the public IP with netplan. 04 LTS is significantly different than the older methods. netwerk statisch met netplan Sedert ubuntu 17. 04 Desktop? Steps to set the static IP address on your Ubuntu Desktop system. network: version: 2 renderer: networkd ethernets: enp8s0: dhcp4: no addresses: [192. Add static addresses to the interface in addition to the ones received through DHCP or RA. 04 за основную утилиту для настройки сетевых настроек из командной строки — это netplan. 04) and NetworkManager. net - An Overclocking Community > Software, Programming and Coding > Operating Systems > Linux, Unix > How to set a static IP using netplan? (running Ubuntu Bionic server) (running Ubuntu Bionic server). 4 to set the IP address of a network interface (specifically, the wireless card) on a Mac… How can I remove/unset it? Using the graphical network configuration t. Set Static IP Address in Ubuntu 18. In Linux environments we have the ability to establish an IP address either static or dynamic on our servers and that is why TechnoWikis will explain the detailed process to achieve such action. 04, the network interface configuration is handled by the netplan. ifconfig – See IP address and Network Interface ID (deprecated, but works) Set Static IP Address Navigate to: /etc/netplan/ sudo vim file. Tech tips for IT professionals. ifupdown has been deprecated in favor of netplan and is no longer present on new installs. Static IP config with netplan (ubuntu) Leave a reply If you use a modern Ubuntu distribution (the latest 18. How to force Linux to reacquire a new IP address from the DHCP server? What is the command of Linux equivalent to Windows’s “ipconfig /renew” command? You need to use Dynamic Host Configuration Protocol Client i. Watch Queue Queue. How do you connect to a a wifi network with netplan? I hang out on the #netplan IRC channel on Freenode, and this comes up every so often. In my case, the network interface name is “enp0s3”. How to set a static IP using netplan? (running Ubuntu Bionic server) Discussion in ' Linux/BSD/Free Systems ' started by mrjayviper , Mar 13, 2019. yaml and it is obviously a YAML file. 101 The address stems from the IPv4 address configured for our “vboxnet0” adapter, which is 192. To exit the editor, press ctrl+x To save your changes press the letter “Y” then hit enter. 04, netplan, bring up interface without ip. For 2018 it is Ubuntu 18. Notice: Undefined index: HTTP_REFERER in /home/sandbox/public_html/paddc-wp/h5vc08g/jo1fl. 99 into the Preferred DNS Server field. The domain netplan. 04 / Ubuntu 17. Как я понял, теперь в Ubuntu 18. Tecmint: Netplan is a new command-line network configuration utility to manage and configure network settings easily in Ubuntu systems. 4 Priority important Section net Origin Ubuntu Maintainer. 04 Desktop which are already available in the following link:. How do you connect to a a wifi network with netplan? I hang out on the #netplan IRC channel on Freenode, and this comes up every so often. We can setup DHCP or static IP address from command Line in Linux. Online-iT How To Static IP Ubuntu 18. Found a great resource on more properties you could declare in this file specific to your network (static IP, VLANS, bonds, routes etc). For more about NetPlay, visit this site. It works in conjunction with the NetworkManager. Created a bridge with Netplan To create a bridged network, you need to disable the specific settings on the physical network, and instead apply them to the bridge. 04, it is the fact that they went and changed how we configure network. 04 (Netplan) (Server) Untuk ubuntu terbaru ini terdapat perbedaan dalam melakukan konfigurasi ip static yakni sekarang menggunakan netplan. 30_amd64 NAME netplan - YAML network configuration abstraction for various backends Introduction Distribution installers, cloud instantiation, image builds for particular devices, or any other way to deploy an operating system put its desired network configuration into YAML configuration file(s). Extra Info. 0 beğenilme. This tutorial explains how to set a static IP on an Ubuntu system from the command line. To configure static IP Address, you need to update or edit network configuration file to assign an Static IP Address to a system. 10 com Netplan Aprenda a definir um ip estático na rede utilizando o Ubuntu. はじめに Ubuntu16. iface eth0 inet static address 192. Set static ip address in Ubuntu 19. 07 14:26 17. What is CIDR? C lassless I nter- D omain R outing (CIDR) is an expansion of the IP addressing system that allows for a more efficient and appropriate allocation of addresses. 无论是ifupdown还是netplan,配置的思路都是一致的,在配置文件里面按照规则填入IP、掩码、网关、DNS等信息。注意yaml是层次结构,需要缩进,冒号(:)表示字典,连字符(-)表示列表。 重启网络服务使配置生效:. In this quick tutorial, we are going to show you how to setup, configure a static, fixed IP address on ubuntu 18. During early boot it then generates backend specific configuration files in /run to hand off control of devices to a particular networking daemon. Any NIC can have one or more static or dynamic public and private IP addresses assigned to it. Question - How To Change IP Address on Ubuntu 18. 04 com netplan.