Mine is pretty neat but if you don't like yours, change the hostname in Ubuntu with this command: hostnamectl set-hostname ĭon't worry, I'll show it in detail along with other ways of changing the hostname.īut before jumping to the how-to section, I'd like to share the rules that you'll have to keep in mind while setting up the hostname. I mean ap-west-ubuntu-ssd5234 or acer-234 is okay as the computer name but you can change it to something more meaningful. If you don't specify it while installing Ubuntu on your system or deploying it on a cloud service like DigitalOcean, it gets a hostname of its own.Īnd you may not always like it.
#Ubuntu change hostname update#
Update certificates and SSH keys tied to the old hostname for secure connections.The hostname is basically your computer's name by which it is identified on the (sub)network. Q5: Will hostname change impact system security or SSL certificates?Ī: Changing the hostname may have implications for security certificates and SSH keys associated with the system. Stick to letters, numbers, and hyphens to avoid conflicts.
Q4: Can I use special characters in the new hostname?Ī: It is advisable to avoid using special characters or spaces in the hostname. Q3: Will changing the hostname affect the internet connection?Ī: No, but verify router or DNS settings for proper reflection. To avoid any potential issues, it is recommended to restart the system after changing the hostname.
#Ubuntu change hostname full#
Q2: Can I change the hostname without restarting?Ī: Yes, changes take effect immediately, but restart for a full application update. One common scenario is to provide a more meaningful and descriptive name for your device on the network.
#Ubuntu change hostname how to#
To conclude, we learned how to change the hostname on Ubuntu server without rebooting through the command line (CLI) and Graphical user interface (GUI).įor more such tutorials, don’t forget to bookmark our website.Ī: There are several reasons for changing the hostname on your Ubuntu system. If it contains the old hostname, change it to new. Important After changing the hostname on Ubuntu, don’t forget to check the /etc/hosts file. Your device name is changed permanently and you do not need to reboot the Ubuntu machine, but if you want to test this, just go ahead and reboot the machine and check the hostname again. If you are using GUI on YUbuntu and don’t want to use CLI to change the hostname, just go to Settings and then head over to the About tab. Ubuntu hostname can also be changed using GUI. How to Change Hostname on Ubuntu through GUI You can open a new terminal and confirm the new hostname. Note: This does not require a reboot and is permanent. Below is the complete syntax with the output. Now, once you have confirmed the hostname, again use the hostnamectl command to change the hostname of the Ubuntu server. Hardware Model: VMware Virtual hostnamectl set-hostname ubuntu22 This will provide a detailed description of your Ubuntu server/machine.Īlso, when you open the terminal, it will generally, show you the hostname. To change hostname on Ubuntu, open the terminal and first check the server hostname using the command “ hostnamectl” or “ hostname“. How to Change Hostname on Ubuntu through CLI Just like how you have a name that distinguishes you from others (hopefully!), your computer needs a hostname to stand out in the digital crowd. It’s what identifies your computer on a network.
In simple terms, a hostname is like a unique name tag for your computer.
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