How to Download Ubuntu Server 21
Ubuntu Server is a variant of the standard Ubuntu Linux distribution that is tailored for networks and services. It can run various server applications, such as web hosting, email hosting, file sharing, and more. It supports four 64-bit architectures: amd64, arm64, ppc64el, and s390x. In this article, we will show you how to download Ubuntu Server 21, create a bootable USB stick with it, and install it on your system.
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What is Ubuntu Server 21 and why you should use it
Ubuntu Server 21 is the latest version of Ubuntu Server that was released in April 2021. It is based on the Linux kernel 5.11 and comes with many new features and improvements. Here are some of them:
Ubuntu Server 21 features
Native support for Microsoft SQL Server on Ubuntu 20.04 LTS. You can easily set up both the database management system and its command-line interface using ordinary packaging tools or use Ubuntu images with SQL Server pre-installed on Azure.
Support for Debian Installer preseed scripts. You can convert your existing preseed scripts into the Ubuntu Server Live Installer artifacts using the autoinstall-generator snap. This allows you to migrate to the new installer with ease.
HWE advanced networking stack for all LTS Ubuntu versions. You can benefit from the latest hardware drivers and security updates for your network devices.
APT phased updates. You can opt-in to receive updates gradually over a period of time instead of all at once. This reduces the risk of breaking your system due to a faulty update.
Other notable changes include improved performance, security, and stability; updated software packages; and bug fixes.
Ubuntu Server 21 benefits
Using Ubuntu Server 21 has many benefits for your server needs. Here are some of them:
It is free and open source. You can use it without any license fees or restrictions.
It is easy to install and use. You can install it from a USB stick or a DVD in a few steps. You can also use automated provisioning tools like MAAS or cloud images with various applications included.
It is reliable and secure. It has a regular release cycle and a long-term support option. It also receives frequent security updates and patches.
It is versatile and scalable. You can run it on various hardware platforms and architectures. You can also deploy it on a single server or a large-scale cloud environment.
It has a large and active community. You can get help and support from millions of users and developers around the world.
How to create a bootable USB stick with Ubuntu Server 21
To install Ubuntu Server 21, you need to create a bootable USB stick with the installation media. Here are the steps to do that:
Downloading Ubuntu Server 21 ISO file
Go to and click on "Download".
Select "Server" from the menu and choose "Ubuntu Server 21.04".
Click on "Download" again and save the ISO file to your computer.
Creating the bootable USB stick with Rufus
Download , a free and open source tool for creating bootable USB drives.
Run Rufus and insert a USB stick with at least 4 GB of space into your computer.
Select the USB stick from the "Device" dropdown menu.
Click on the "SELECT" button and browse to the location of the Ubuntu Server 21 ISO file.
Leave the other settings as default and click on "START".
Wait for Rufus to create the bootable USB stick. This may take a few minutes.
When Rufus is done, you can safely eject the USB stick from your computer.
How to install Ubuntu Server 21 via USB
Now that you have a bootable USB stick with Ubuntu Server 21, you can proceed to install it on your system. Here are the steps to do that:
Booting from the USB stick
Insert the USB stick into the system where you want to install Ubuntu Server 21.
Turn on or restart the system and press the appropriate key to enter the boot menu. This may vary depending on your system, but it is usually F12, F10, F9, or Esc.
Select the USB stick from the boot menu and press Enter.
You should see a screen with the Ubuntu logo and a menu with two options: "Install Ubuntu Server" and "Test memory". Choose "Install Ubuntu Server" and press Enter.
Choosing the language and keyboard layout
You will be asked to choose the language for the installation process. Use the arrow keys to select your preferred language and press Enter.
You will also be asked to choose the keyboard layout for your system. You can either select one from the list or use the "Detect keyboard layout" option to automatically detect it. Press Enter when you are done.
Configuring the network and storage
The installer will try to configure the network automatically using DHCP. If this fails, you will be asked to enter the network settings manually. You can either use IPv4 or IPv6 addresses, or both. You will need to enter the IP address, subnet mask, gateway, and DNS server for each interface. Press Enter when you are done.
The installer will also scan your storage devices and show you a list of available disks. You can either use an entire disk or create custom partitions for your installation. You can also choose to use LVM (Logical Volume Manager) or ZFS (Zettabyte File System) for more flexibility and performance. Press Enter when you are done.
Setting up a profile and installing software
The installer will ask you to enter your name, username, password, and server name. These will be used to create your user account and identify your system on the network. Press Enter when you are done.
The installer will also ask you to select some software packages to install on your system. You can either choose from some predefined profiles, such as "Basic Ubuntu server", "Web server", "Mail server", etc., or select individual packages from a list. You can also choose to install updates automatically or manually. Press Enter when you are done.
Completing the installation and rebooting
The installer will start copying files and installing packages on your system. This may take some time depending on your hardware and network speed.
When the installation is complete, you will see a message saying "Installation complete". Press Enter to confirm.
The installer will ask you to remove the installation media and press Enter to reboot your system.
Your system will restart and boot into Ubuntu Server 21. You can log in with your username and password that you set up during the installation.
Conclusion
In this article, we have shown you how to download Ubuntu Server 21, create a bootable USB stick with it, and install it on your system. We hope that this guide was helpful and that you enjoy using Ubuntu Server 21 for your server needs. If you have any questions or feedback, please let us know in the comments below.
FAQs
Q: How can I check which version of Ubuntu Server I am running?
A: You can use the lsb_release -a command in a terminal to see information about your Ubuntu release, such as the codename, version number, and description.
Q: How can I update my Ubuntu Server 21 system?
A: You A: You can use the sudo apt update and sudo apt upgrade commands in a terminal to update your system packages and software. You can also use the sudo do-release-upgrade command to upgrade your system to a newer Ubuntu release, if available.
Q: How can I access my Ubuntu Server 21 system remotely?
A: You can use SSH (Secure Shell) to access your Ubuntu Server 21 system remotely. SSH is a protocol that allows you to securely log in and execute commands on a remote system. You need to have an SSH client on your local system and an SSH server on your remote system. You can install the SSH server on your Ubuntu Server 21 system by using the sudo apt install openssh-server command. You can then use the ssh username@hostname or ssh username@ip-address command on your local system to connect to your remote system, where username is your user name and hostname or ip-address is the name or address of your remote system.
Q: How can I monitor the performance and resource usage of my Ubuntu Server 21 system?
A: You can use various tools and commands to monitor the performance and resource usage of your Ubuntu Server 21 system. Some of them are:
top: This command shows you the CPU, memory, and process information of your system in real time.
htop: This command is similar to top, but with more features and a nicer interface. You can install it by using the sudo apt install htop command.
free: This command shows you the amount of free and used memory in your system.
df: This command shows you the disk space usage of your file systems.
iostat: This command shows you the input/output statistics of your disk devices.
sar: This command shows you the system activity report of your system over a period of time. You can install it by using the sudo apt install sysstat command.
nmon: This command shows you a comprehensive overview of your system performance and resource usage. You can install it by using the sudo apt install nmon command.
Q: How can I secure my Ubuntu Server 21 system?
A: You can secure your Ubuntu Server 21 system by following some best practices, such as:
Using strong passwords and changing them regularly.
Using SSH keys instead of passwords for remote access.
Disabling root login and using sudo for administrative tasks.
Limiting the number of users and groups with sudo privileges.
Keeping your system updated and patched.
Installing a firewall and configuring it properly.
Installing an antivirus and malware scanner and running them regularly.
Avoiding installing unnecessary or untrusted software packages.
Backing up your data and configuration files regularly.
Q: How can I get more help and support for my Ubuntu Server 21 system?
A: You can get more help and support for your Ubuntu Server 21 system by visiting some of these resources:
: Here you can find documentation, tutorials, guides, forums, blogs, newsletters, podcasts, and more about Ubuntu.
: Here you can find detailed information about installing, configuring, managing, and troubleshooting Ubuntu Server.
: Here you can find user-contributed articles, tips, tricks, FAQs, how-tos, and more about Ubuntu.
: Here you can chat with other Ubuntu users and experts in real time. The main channel for Ubuntu Server is #ubuntu-server on irc.libera.chat.
: Here you can subscribe to various mailing lists related to Ubuntu topics and receive emails from other users and developers.
: Here you can ask and answer questions about Ubuntu in a Q&A format.
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