illustrate: Today, when continuing the last office collaboration platform experiment, I found that the virtual machine had obtained an IP address through DHCP before, and the address obtained by DHCP changed after the virtual machine was turned on. Because the website has been configured with a fixed IP address access, it cannot access the webpage, so it is necessary to change the IP address to the IP address obtained last time to access it. I checked how to change the IP address in Ubuntu and found that "Starting from 17.10, Ubuntu has abandoned the configuration of fixed IP in /etc/network/interfaces. Even if it is configured, it will not take effect. Instead, it has been changed to netplan mode, and the configuration is written in /etc/netplan/01-netcfg.yaml or a yaml file with a similar name." 0x00 Use the ifconfig command to view the network card ifconfig 0x01 Modify the YAML configuration file sudo vi /etc/netplan/00-installer-config.yaml network: ethernets: ens33: #Name of the configured network card addresses: [192.168.31.215/24] #Static IP address and mask dhcp4: no #Turn off DHCP. If you need to turn on DHCP, write yes optional: true gateway4: 192.168.31.1 #Gateway address nameservers: addresses: [192.168.31.1,114.114.114.114] #DNS server address. Multiple DNS server addresses need to be separated by commas. version: 2 renderer: networkd #Specify the backend to use systemd-networkd or Network Manager. If left blank, systemd-workd will be used by default. After configuring according to your needs, save the file 0x02 Make the configured IP address effective sudo netplan apply OK, use the ifconfig command to check whether the configured new IP address is effective. 0x03 Notes: 1. The IP address and DNS server address need to be enclosed in [], but the gateway address does not need to be enclosed in []. This is the end of this article about the example of how to change the IP address of Ubuntu 20.04. For more information about how to change the IP address of Ubuntu 20.04, please search for previous articles on 123WORDPRESS.COM or continue to browse the related articles below. I hope you will support 123WORDPRESS.COM in the future! You may also be interested in:
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