how to change hostname in linux ubuntu

First, use the "hostnamectl" command. ). There are a few ways that you can find the hostname of a Linux VM. Being a content writer, I often find myself in situations where I need a temporary hostname that will be switched back to the older one after the reboot. Ubuntu change hostname command. CC-by-SA | It's FOSS is part of CHMOD777 Media Tech Pvt Ltd. Change the name of the user directory and all daughter directories to match the new username and update the filepaths: mv /home/oldUsername* /home . For example, no two computers on a network can have the same hostname and, if you find yourself in this situation, you will have to change the hostname to avoid a network conflict. Is there an issue with the UI and UX of the website? This 'Device Name' is the hostname of your system. When you purchase through our links we may earn a commission. But 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. TUTORIALS ON LINUX, PROGRAMMING & TECHNOLOGY. Then, follow the below-mentioned simple steps to process this. Change the hostname. To change the hostname, enter the following command, replacing new-hostname with the name you'd like to use:. Link leading to a dead page? And it's that simple. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. Heres how to enable the Night Light feature in Ubuntu & other Linux distros. Learn The Simple Way How to Change Hostname on Ubuntu 18.04. 1. The login page will open in a new tab. Open the "/etc/hostname" file with an editor of your choice: sudo nano /etc/hostname. A pretty hostname is the hostname presented to the user, not to another computer on a network. In this blog, the CLI and GUI methods of changing the hostname have been explained in detail for Linux distributions. 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. $ sudo vim /etc/hostname Replace the existing hostname string with the new hostname and then save and exit the file. In Ubuntus Unity desktop, click the Ubuntu button to pull up the dash, search for Terminal, and press Enter. The "inventory" file will be populated with the IP addresses of our remote hosts. You can change this hostname later, but Ubuntu doesnt provide a graphical interface for doing so. This will make your computer's name change to something new when it restarts. To do this, we can use the hostnamectl command as root or with sudo. Dear Holmes, help your Watson (that's us) by explaining the details. This will allow your system to run it every time you reboot your machine and generate a new hostname for you. To change/set a new hostname run the following command. Setting or Changing the hostname. 2. # Open the /etc/hosts file and change the old hostname to the new one. Replace it with your new desired hostname and then save the text file. The Static hostname line displays your machines hostname. To change the hostname of your system: hostname NEW_NAME. What is SSH Agent Forwarding and How Do You Use It? So it will open another prompt showing your current hostname and can be changed to your preferred one: For demonstration, I changed my hostname to HelloUbuntu and to reflect those changes, you have to restart your terminal. The hostname is supposed to uniquely identify a computer on a network. Indeed a green or purple line on the screen in VLC is very common annoyance. Your sharp observation skill and intellect have identified a potential issue with this article. Command: /usr/bin/newhostname. To change the currently set hostname, type the following hostnamectl command: $ sudo hostnamectl set-hostname newNameHere You can change the hostname, by replacing it with the newNameHere in the previous command. Open a terminal and use the command below to change the hostname. Note, that this is effective only until the next reboot. Feel free to provide your feedback. Some Linux distributions and cloud service providers let you choose the hostname while installing. To delete characters, you press the x key. As seen above. You are not seeing things. hostnamectl set-hostname [YOURHOSTNAME] For example, if we wanted to set our devices static hostname to " pimyhostname " you would use the following command. Take Screenshot by Tapping Back of iPhone, Pair Two Sets of AirPods With the Same iPhone, Download Files Using Safari on Your iPhone, Turn Your Computer Into a DLNA Media Server, Download and Install Older Versions of macOS. How to Install VirtualBox on Ubuntu 22.04, How to Install and Use PHP Composer on Debian 11 Linux, How to change the password on Ubuntu 22.04, How to do Advanced UFW Firewall Configuration in Ubuntu 22.04. Run the following command in the terminal to open the /etc/hostname file in the graphical gedit text editor for editing: (You could also use terminal-based text editors like nano or vi for this youd run the sudo nano /etc/hostname or sudo vi /etc/hostname commands to open the file for editing. Change Hostname via /etc/hostname File The hostname of the Ubuntu is stored in the file /etc/hostname . Your change wont take effect immediately youll have to reboot or use the hostname command to change it immediately. Now, you can use hostname command to reflect those changes: I use this method on regularly. Make sure that you change the hostname in /etc/hostname and /etc/hosts to a same new hostname. Save your eyes when you work with computers at night by filtering the blue light. Read More Installing MATE Desktop Environment on UbuntuContinue. As you see here, the "NEW_NAME" was replaced with the actual hostname that was needed. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Next Edit the /etc/hosts file: sudo nano /etc/hosts. The hostname is basically your computer's name by which it is identified on the (sub)network. The syntax is as follows: sudo hostnamectl set-hostname host.example.com sudo hostnamectl set-hostname "Your Pretty HostName" --pretty sudo hostnamectl set-hostname host.example.com --static sudo hostnamectl set-hostname host.example.com --transient If at any point in time you feel like your computer doesnt have a fancy or relevant name, you can easily change the hostname in Linux. Some button not working? For example, if you want to change the system hostname to mail.vegastack.com. Reboot your computer to apply the changes: Note: If you use the Cloud-Init package (cloud-init) to run a cloud instance of Ubuntu, you need to perform another step before rebooting. How-To Geek is where you turn when you want experts to explain technology. Highlight a Row Using Conditional Formatting, Hide or Password Protect a Folder in Windows, Access Your Router If You Forget the Password, Access Your Linux Partitions From Windows, How to Connect to Localhost Within a Docker Container. This technical guide is for users who already have a server running the CentOS 7 operating system and need to change the hostname. Video Tutorial: Chris has written for. replace your current hostname with a new hostname of your choice, we will replace ours with "web1". To confirm the result of the process, check the current system hostname: If you wish to permanently change the hostname without rebooting your computer, use the hostnamectl command. Run the hostname command in a terminal window to specify a new hostname. Normally the username is associated with the Home directory of your Linux system. On Linux distributions not based on Debian, theres a different process. Before exploring methods to change hostname, let us run the command to find out the current hostname of Ubuntu: In the above image, we can see that hostname of our machine is foss and if we want to display only hostname instead of the other data, we can use the command: Now if we want to change the hostname, for example, we say that we want to change the hostname from foss to linux, we will use the command: Now to verify the changes, we will again display the hostname using the command: Another method to change the hostname is by going to the Settings and then click on the Sharing option: We will change the linux hostname back to foss by replacing linux: Go back to the terminal and run the command of displaying hostname: The hostname of a machine is the identity or unique name by which we can recognize the machine in the network and in this write-up, we discover methods to change the hostname on Ubuntu 22.04. There are two ways to change the hostname inUbuntu: Here I am assuming you have Ubuntu on your system, but you can try the same command line trick onLinux Mintand some otherDebiandistributions as they use the same configuration as Ubuntu. The change above will take effect when you reboot, but you can use the hostname command in a terminal to change your hostname immediately. If you decide to change your hostname, you have multiple available options to do so. If your Linux system uses systemd, you can use the tools provided by systemd to change the hostname. Go to System Settings->Details Here, you will see the 'Device Name' field which can be edited. Use the hostname commandto make a temporary change to your computers hostname. ), RELATED: The Beginner's Guide to Nano, the Linux Command-Line Text Editor. Read More [Solved] Cant Format USB Disk in Ubuntu because of Error Formatting VolumeContinue. Just like the hostname command, if successful, hostnamectl set-hostname does not produce any output. To display the current hostname on your Linux system, type in: hostname. For example, we want to change the hostname of the current system from ubuntu to web-server. You have just changed your hostname using hostnamectl command. For example, we can change the system static hostname to linuxconcept by using the following command: $ sudo hostnamectl set-hostname linuxconcept. To check your current hostname and some other information, use the command: To change the hostname, you can use this option with the hostnamectl command: Of course, replace the with your new hostname in the above command. The hostname is changed in /etc/hosts. Open your terminal and type the below command. Use GUI to Change hostname in Ubuntu Linux Most of the user in this world love using the graphical interface, so I decide to add this graphical section in this article. There are different ways available to change hostname in Ubuntu using terminal. You can verify the change by re-running the hostnamectl command. touch inventory && touch change-hostname.yml vim inventory How to change hostname on Linux using Ansible (code) Step 1 - Change hostname using hostnamectl command. Screenshot tutorial to show you how to install MATE desktop in Ubuntu 18.04 and other versions and how to completely remove it. 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 file_server. 2022 Copyright phoenixNAP | Global IT Services. a computer on a network. To change hostname in Ubuntu 18.04 or any other Linux distribution using gnome desktop just go to System Settings and click Details. We select and review products independently. Once you reboot the system, the hostname will be reverted to old name. Use the below command to replace the new hostname with the provided name. I have a linux container with that runs the init process to support multiple services. Click y or Y from keyboard and press Enter. Please provide as much detail as you can. Youll need to change the hostname in your hosts file, too. Check your Linux distributions documentation for more information. The process here will also work on Linux Mint and other Debian-based Linux distributions. Changing the system hostname is a simple process. To do this, you need to add the hostname configuration option to your Vagrantfile: Vagrant.configure ("2") do |config| config.vm.box = "precise32" config.vm.hostname = "ubuntu-slave" config.vm.network :private . Edit the /etc/hosts file. The terminal will notice when you re-open it or if you just open a new one. We can change the system hostname of our Linux system to any other desired hostname. The Ubuntu GUI also provides a way to edit the system hostname: 3 Clicking the Device Name field opens the Rename Device dialogue box. Open a terminal window to get started. Save your changes with "Ctrl + O", after confirming the filename with "Enter . Open the /etc/hosts file for editing with a command like the following one: (Once again, you could use any other text editor you want nano, vi, or another graphical text editor of your choice.). Step 4) Now type command "hostname", you will get your changed hostname output as: Previous Maximum index a pointer can reach in N steps by avoiding a given index B | Set 2 Next Minimum number of jumps required to sort the given array in ascending order This will rename your system to file_server. A hostname is the unique identity of the machine by which it can be recognized in a network, for example, if your machine name is Alex, you can easily recognize your machine in the network and can send the documents to it. 4. Another way to find the hostname is to use the "uname" command with the "-n" option. To do that, open terminal and type in the following command: sudo vi /etc/hostname. Ubuntu comes with systemd and it has a dedicated hostnamectl command to manage the hostname. 2. In this example, host.olddomain.com is the old hostname of the server, and host.newdomain.com is the new hostname. Seeing a green line at the bottom in VLC in Linux? $ sudo hostname linuxhint Method 2: Change the hostname using the Hostnamectl command When you open the terminal the hostname is shown in the command as well. How to Check Current Hostname on Ubuntu 20.04, Temporarily Change Hostname on Ubuntu 20.04, Change Hostname on Ubuntu 20.04 (No Reboot Required), Step 1: Use set-hostname to Change the Hostname, Step 2: Use hostnamectl to Confirm the Change, Step 3: Change the Pretty Hostname (Optional), Change Hostname on Ubuntu 20.04 Alternative Method (Reboot Required), Step 1: Open /etc/hostname and Change the Hostname, Step 2: Open /etc/hosts and Change the Hostname, Change Hostname on Ubuntu 20.04 Using GUI. Continue with Recommended Cookies. I am going to usenanohere. The hostname and hostnamectl commands work with this file in order to display or change the hostname of the Ubuntu. Its contains only one thing your computers hostname. After logging in you can close it and return to this page. The Linux hostname command lets you view your computers domain, hostname, and IP address. Press Enter key again. If you chose an invalid hostname, this command will tell you and you can try again. As you can see in the above screenshot, theusername is abhishekwhile thehostname is itsfoss. Ubuntu change hostname command. $ sudo nano /etc/hostname. This command works regardless of whether your hostname is resolvable. Update the /etc/hosts file to include your persistent hostname for localhost, similar to the following: 127.0.0.1 localhost persistent-hostname. A hostname must begin and end with a letter or number not a hyphen or period. Thebeginner-friendly Linux distributionUbuntu often provides the graphical way of doing things. For example, to change the system static hostname to linuxize, you would use the following command: sudo hostnamectl set-hostname linuxize. To change a machines pretty hostname, use the same hostnamectl command with the --pretty option: Replace new-hostname with your own UTF-8 value. Letters are also case-insensitive, so COMPUTER is equivalent to computer. The hostname must be between 2 and 63 characters long, although youll probably find shorter hostnames more convenient. This way, you can get your hostname without . I'll be using the hostname command to check the updated hostname: I won't recommend this method as it may create issues with DHCP services. Multiple options, including using the Linux terminal. Now edit the /etc/hosts file in the same way. Change it to whatever you want. - Method 1 - Temporarily change the hostname on Ubuntu 22.04 using the hostname command The hostname command allows you to temporarily change the hostname of your system. The hostname is basically just your computers name. The Ubuntu GUI also provides a way to edit the system hostname: 1. Thats it; you should be done. In this example, we will be using the Vim editor: The /etc/hostname file contains only the current hostname. $ usermod -l newUsername oldUsername. So you must be ready with an interesting hostname right? Its the same process pretty much in any other desktop environment. Learn how to zip a folder in Ubuntu command line. To change the hostname, use it like this: hostnamectl set-hostname <new_hostname> For example, I'll be changing my previous hostname to FOSS: hostnamectl set-hostname FOSS Change hostname using Nmtui In the file, delete the current hostname and add the new one you want to set. Locate your old hostname in the hosts file. Then, use your favorite editor to change the hostname and save it. You can also use the -s option to get the hostname in short. We have over 1500 articles in the last ten years. Replace it with your new desired hostname and then save the text file. By submitting your email, you agree to the Terms of Use and Privacy Policy. Read more Ubuntu asks you to choose a name for your computer known as a hostname when you install it. You can also press the letter a to go to Append mode. Change it to whatever you want. If you reboot your system, the old hostname will be back. If you want to change the hostname in Ubuntu or any other Debian basedLinux distribution, you can use the typical Linux way to do that, which is using thecommand line. You must also edit the /etc/hosts file in the similar fashion and replace all the occurrences of your old hostname with the new hostname. Home SysAdmin How to Change Hostname on Ubuntu 20.04. You can change or set hostname of your Linux system by running: hostnamectl set-hostname 'new_host_name'. Though I used Ubuntu here, you can use these methods tochange hostname in Debianor most other distributions. Chris has written for The New York Timesand Reader's Digest, been interviewed as a technology expert on TV stations like Miami's NBC 6, and had his work covered by news outlets like the BBC. The hostnamectl command does not produce output. Change the hostname using hostnamectl. If you are running Ubuntu on Windows WSL (Windows Subsystem for Linux) and wondering how to change hostname permanently then follow all steps mentioned below. You can see the hostname in the terminal using thehostname command. Replace it with your new choice. For this purpose, we will use the hostnamectl command with the set-hostname argument followed by the new hostname, in our case, web-server: sudo hostnamectl set . Mine is pretty neat but if you don't like yours, change the hostname in Ubuntu with this command: Don't worry, I'll show it in detail along with other ways of changing the hostname. Leave that line intact. This is important otherwise youll start seeing sudo: unable to resolve host error. If you want to change or set hostname of your Linux system, simply run: $ hostname NEW_HOSTNAME Of course, you will need to replace "NEW_HOSTNAME" with the actual hostname that you wish to set. The /etc/hostname file is very simple. Here's how to change the ownership of files and folders in Ubuntu command line. In Ubuntu 18.04 we can change the system hostname and related settings using the command hostnamectl. They can contain only letters, numbers, periods, and hyphens, but must begin and end with letters and numbers only. The simplest and quickest way to change a Linux system's hostname is: $ hostname <new_hostname>. Change the Hostname in Ubuntu 16.04 Using the sed Command Another way to change the hostname is using the sed command. Running the command "sudo nsenter --target 1 --uts hostname <my new hostname>" from inside the container did the trick. To permanently change the hostname on SystemD based systems, you can run the hostnamectl command in the terminal: sudo hostnamectl set-hostname NEWHOSTNAME where NEWHOSTNAME is the new hostname you wish to use. You may decide to change your computers hostname for several reasons. Since we launched in 2006, our articles have been read more than 1 billion times. To change the hostname in Ubuntu 22.04 or any other Linux distribution using GNOME desktop, just go to the System Settings and click on About. Delete the old name and setup new name. Setup environment In one directory we're going to create an Ansible playbook " change-hostname.yml " file and an empty file called " inventory ". Open the Terminal application and type the following commands to set or change the hostname or computer name on Ubuntu. Another way to permanently change the hostname is by editing two configuration files: The changes take effect immediately after system reboot. Creator of It's FOSS. Edit the file with a text editor of your choice. Thats the hostname for your system. To output the FQDN of the system: hostname --fqd. Method 3: Through the hostnamectl command Check the hostname command again and you will see the change reflected. sudo vim /etc/hosts. sudo nano /etc/hostname sudo nano /etc/hosts With above I couldn't change the name, because there is an error showing : read only permission at the bottom of the window Ubuntu Community When youinstall Ubuntu, it asks you to choose a name for your computer. To check the current hostname of your Ubuntu system, use one of two available commands. To achieve your goal, you'd need to configure the following files: So let's start with /etc/hostname where you've to interchange the old hostname with the new one. Youll only see one line here and that contains your systems hostname. Part of the article contains outdated steps or commands? You have to be the root user to change your hostname. Ubuntu and other Debian-based distribution read the /etc/hostname file while booting up and set your computer's hostname to the one contained in the file. Host names can only contain letters (a through z), digits (0 through 9), and the hyphen character ( ), and the period character ( . In this guide, we will explore methods by which we can make it possible to change the hostname in Ubuntu. Next open the. How to change the hostname in Ubuntu 22.04. In either case the current hostname of our system is ubuntu. This article presented three methods in which you can change the hostname on your Ubuntu 20.04 machine, using the command line or GUI. See this error: This partition cannot be modified because it contains a partition table? It's contains only one thing your computer's hostname. His innate curiosity regarding all things IT, combined with over a decade long background in writing, teaching and working in IT-related fields, led him to technical writing, where he has an opportunity to employ his skills and make technology less daunting to everyone. In the terminal, type the following, replacing new-hostnamewith the name you choose: If successful, this step will not provide any output. The first step once you have entered the droplet would be to use the hostnamectl command. In Ubuntu 20.04, users assign a hostname to the machine during OS setup. Next Edit the /etc/hosts file: sudo nano /etc/hosts Replace any occurrence of the existing computer name with your new one. First, navigate to Settings > About. Or any other issue with the website elements? Also a movie buff with a soft corner for film noir. Go to /etc/cloud/cloud.cfg file and make sure the line preserve_hostname is set to TRUE. Also read: How To Set Up mod_rewrite for Apache on Ubuntu. Note: You might have to create an entry for localhost if the /etc/hosts file on your EC2 instance doesn't have an entry for it. The hostname is basically just your computers name. To do so, we need to execute the command like so. It can be used to identify and communicate your system on the same network. This command only changes the hostname until the next time you reboot, so you do have to change the /etc/hostname file to change it permanently. This action permanently changes the hostname. A hostname is a name assigned to a host a computer on a network. To change your hostname permanently, youll also need to edit your /etc/hostname and /etc/hosts file, which is where Ubuntu, Mint and other Debian-based distributions store the hostname. Read More Install Adobe Lightroom Alternative RawTherapee in Ubuntu LinuxContinue. Is it a grammatical mistake or a simple typo? I mean ap-west-ubuntu-ssd5234 or acer-234 is okay as the computer name but you can change it to something more meaningful. In this tutorial, you will learn how to change a hostname on Ubuntu 20.04 using the Linux command line or GUI. Huge fan of classic detective mysteries ranging from Agatha Christie and Sherlock Holmes to Detective Columbo & Ellery Queen. Replace "new_hostname" with the hostname that you want to use. Replace Hostname Finally, open the file '/etc/hosts' and replace the previous hostname with the new hostname. Use your own hostname choice instead of new-hostname. Delete the old name and setup new name. What Is a PEM File and How Do You Use It? 3 Clicking the Device Name field opens the Rename Device dialogue box. Updating this file is another way to perform this optional step. First, use the given command to open the file to configure: Once you're done, save changes. sudo hostnamectl set-hostname ExampleName The hostnamectl command does not produce output. Step 2 - Changing the Hostname 1) To change the hostname you need to invoke the hostnamectl command along with set-hostname argument that will be followed with the new hostname. Manage Settings Method 2: Changing hostname by editing /etc/hostname This method is similar to the second step in Method 1. Hostnamectl is a command is used to change hostname Now edit /etc/hosts file vi /etc/hosts in the place of virtualbox write sckenz.com And save it now your hostname is permannetly changed You can check by opening new terminal If you want to revert it back just do same as above with previous hostname Hostnamectl set-hostname virtualbox Vi /etc/hosts Installing VLC on Ubuntu is one of the first few thing I do every time I install Ubuntu. After checking the result with hostnamectl, you will notice an additional line in the output, listing the computers pretty hostname. Therefore, use hostnamectl to check the result. Do You Really Want a Smart Mirror in Your Bathroom? When you open the terminal the hostname is shown in the command as well. The hostname is basically your computers name. So, now we will remove and replace the username to the Home directory. The file /etc/hosts maps hostnames to IP addresses. 4. Consult our guide to using nano or introduction to using vi for help using these text editors. sudo nano /etc/ hosts. Changing Ubuntu 18.04 server name on the hosts file. Login with the username root and the password you set previously. This hostname is supposed to uniquely identify a computer on a network. To change that hostname, open and edit the necessary file with the command sudo nano /etc/hostname. Step 1: First of all, you have to check your present hostname. Other Linux distributions for example, Fedora and other Red Hat-based distributions use different methods for specifying a hostname. All Rights Reserved. You can specify whatever name you like. However, note that it's better to use the full name in this case. I also included a tip on changing the hostname temporarily. Update: 07 Nov 2022. To verify that the new name has been set, type hostnamectl again and you'll see the updated information.. Again, the command-line method for changing the Linux hostname should work on nearly all modern Linux distributions, not just Ubuntu. Once hostname is changed, if you get "unable to resolve host <hostname>: Name or service not known" then follow the step #4 for the fix.

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