A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

For questions concerning specifics about the files on Ubuntu. If your question is about the file manager called "Files" in Ubuntu, use the [nautilus] tag instead.
Questions related to the sudo command that allows users to run programs with the privileges of a different user (normally the root user).
This non-LTS version of Ubuntu, code named Saucy Salamander, was released On 17 Oct, 2013 and reached End Of Life on July, 2014. Newer questions should be considered off-topic.
2617 questions
Questions related to live (bootable) USB devices, which allow you to test Ubuntu without installing, to install Ubuntu, or carry out tasks that can't be done from the mounted root filesystem, such as …
Questions dealing with Ubuntu's layout of files, permissions, and files that reside in special locations on disk.
In Ubuntu most applications have dependencies, programs that they depend on to run correctly. This means that installing a package sometimes requires other packages to be installed, and removing packa…
Questions related to power management, particularly power saving measures.
are now closed as off-topic. Questions about Ubuntu Touch, the mobile version for phones and tablets.
2471 questions
Passwords are used to check user identity or authenticate, for example log in to a user account, to gain elevated privileges with `sudo` or with encryption. Use this tag when asking about using and m…
Samba is the standard Windows interoperability suite of programs for Ubuntu and is also the default file server for Ubuntu.
The images that a desktop environment uses to identify files, folders, and applications. Icons are a core component of a GUI and are a fundamental part of navigating any computer today.
An operating system from the Windows NT family of operating systems from Microsoft, released in 2009 and the successor of Windows Vista.
2433 questions
PHP is a server-side scripting language, used for building browser-based applications. This includes websites as well as programs that don't really need any form of interaction with the user.
Backup is the activity of copying files or databases so that they will be preserved in case of equipment failure or other catastrophe. This tag covers restoring from backup as well.
Questions about "themes" which alter the look of the interface.
The Launcher is one of the main access points for applications in Unity interface. It provides quick access for launching applications and managing running applications. If your question is about crea…
2364 questions
Questions related to compiling software from sources, usually using the "make" command.
Questions about encryption such as home folder encryption, partition encryption and file encryption.
Security covers a wide-ranging set of topics including Users, Permissions, Authentication, Authorisation, Upgrades, Firewalling, Hardening, etc.
The Advanced Linux Sound Architecture (ALSA) provides audio and MIDI functionality to the Linux operating system.
Lenovo make a large group of PC related products including desktops and more portable items such as Thinkpads and Ideapads as well as servers and display items.
Questions related to graphics chips and related drivers made by AMD. Also for questions about older ATI motherboard chipsets and drivers.
2218 questions
A solid-state drive (SSD) is a data storage device that uses solid-state storage to store persistent data with the intention of providing access in the same manner of a traditional mechanical spinning…
GNOME Terminal (often titled only "Terminal") is the default terminal emulator included in Ubuntu.
For questions regarding shutting down and powering off.
Questions about uninstalling software in Ubuntu, or uninstalling Ubuntu from a computer.
Ubuntu 17.10 (Artful Aardvark) was released on 19 October 2017, and was supported until July 19, 2018. Questions about unsupported versions are likely to be closed as off-topic.
2165 questions
Domain Name System for computers, services, or any resource connected to the Internet. It translates domain names meaningful to humans into the numerical identifiers associated with networking equipme…
Questions about keyboard layout and configuration.
Questions about laptops in relationship to Ubuntu. Common subjects are trackpads, batteries and wireless cards.
An operating system from the Windows NT family of operating systems from Microsoft, released on July 29, 2015
This non-LTS of Ubuntu, code-named "Vivid Vervet", was released on April 23rd, 2015 and reached End-of-Life on February 4, 2016. Newer questions should be considered off-topic.
2102 questions
Questions about LibreOffice and the included applications (Writer, Calc, Impress, Base, Draw, Math). Unless the question is a general how-to, user should always tell which version of LibreOffice in us…
Questions related to VPN (Virtual Private Network) software
GParted (GNOME Partition Editor) is a free partition editor for graphically managing disk partitions. It is included in some flavors of Ubuntu by default and is available in repositories.
Questions related to the management, installation and removal of fonts.
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