![]() ![]() ![]() Your system hostname will revert to the previous name upon restarting. This will set anupspc as the transient hostname for the current session. If you only need to change the hostname temporarily, you can use the hostname command like so sudo hostname anupspc Due to this, NetworkManager doesn’t pick up manual changes to the config files until you restart. The downside to this method is that such configs are supposed to be modified using the utilities shown earlier. Once again, replace the old hostname here and save the changes. Set the new hostname here and write out the changes. You can also directly modify the /etc/hostname and /etc/hosts files to change your hostname. Just open Terminal either by searching or by pressing Ctrl + Alt + T keys together. Then, press Esc or select Quit to exit nmtui. Its quite easy to change the hostname in Ubuntu Linux. Select Set System Hostname and press Enter. If you want to use nmtui instead, start it with sudo nmtui NetworkManager’s CLI tools (nmtui/nmcli) also work fine for changing the static hostname. You can verify the change with hostnamectl or you can specify the exact hostname type like so hostnamectl -pretty Network Manager hostnamectl set-hostname -pretty “anup’spc” For instance, let’s set anup’spc as the pretty hostname for better readability. If you want to set any of these individually, you can use the -static, -transient, or -pretty options. The transient hostname is usually the same as static too, but it can change based on your network configuration (due to DHCP and mDNS servers). ![]() The pretty hostname has fewer naming restrictions (UTF-8) as it’s intended to be read by users. The static hostname is the standard hostname that we just set. By default, this will alter the Static, Transient, and Pretty hostnames. We’ll use it to set anupspc as the new hostname. Hostnamectl is the standard tool for managing the system hostname and related settings on Ubuntu. Set the new hostname here and press Rename. Search and open ‘About’ from the Activities overview.The first way to change your hostname is from the control center. After doing the changes, run any of these command or reboot the server for the changes to take effect. Assuming these conditions are fulfilled, changing your hostname on Ubuntu is very easy. Replace the content with your hostname and domain name. ![]() It can be 253 characters long at most, and you may only use letters, numbers, or hyphens. Ubuntu has some basic requirements when it comes to hostname validity. The hostname saved in this file ( /etc/hostname) will be preserved on system reboot (and will be set using the same service).The hostname is a name that identifies a device on a network. You can verify the change by re-running the hostnamectl command. This will rename your system to fileserver. Note : Above command to make the change active. Option 1: Change the Hostname with hostnamectl Command (Easiest Method) You can easily change the hostname using options with the hostnamectl command: sudo hostnamectl set-hostname fileserver. You must keep both your host names in /etc/hosts (127.0.0.1 newhost oldhost) until you execute the command below: sudo service hostname start To change without a reboot, you can just use hostname.sh after you edit /etc/hostname. Now after a reboot, your hostname will be the new one you chose Without Reboot If you have already done it, press ESC on the grub menu, choose recovery, and edit your host file to the correct settings) Note : i have read it on a forum > Edit /etc/hosts and change the old 127.0.1.1 line to your new hostname (if you don't do this, you wont be able to use sudo anymore. Changing the hostname or computer name in ubuntu without restartĮdit /etc/hostname and change to the new value, nano /etc/hostnameĮdit /etc/hosts and change the old 127.0.1.1 line to your new hostname 127.0.0.1 localhostġ27.0.1.1 ubuntu.local ubuntu # change to your new hostname/fqdn ![]()
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