Ceci est une ancienne révision du document !
Q I want to install VLC Media Player. What password can I use to authenticate?
A (Thanks to grahammechanical in the Ubuntu Forums) When we install Ubuntu, we are asked to set a username & password. That username is the name we log into Ubuntu with, and that password authenticates logging in with that username.
Once we login to Ubuntu, we can do most tasks without needing to authenticate the action. But there are certain tasks that only we are allowed to perform, and for those tasks we are asked to authenticate the action. We enter the password that we created when we installed Ubuntu.
Q Can't pair bluetooth keyboard logitech k480 with Ubuntu 15.10.
A (Thanks to jeremy31 in the Ubuntu Forums) You need to press the button on the keyboard for “Windows/Android/Chrome OS” to put it in discovery mode. Then use the bluetooth GUI to search. (Gord adds: This answer applies to most Bluetooth devices, irrespective of OS.)
Q I have an old PC that has Windows XP which I rarely use. I want to try Ubuntu OS.
A If the old computer has 1 GB of memory, it should be fine with Xubuntu, Lubuntu or Ubuntu Mate. If it has 512 MB of memory, and the video does not steal any of that memory, it should run reasonably well. If it has less than 512 MB, it will not provide a happy experience.
Skills you need: how to boot from DVD or USB, how to deal with partitions.
Q How can I configure Apache2 to serve pages from a folder under my Home?
A (Thanks to SlidingHorn in the Ubuntu Forums) From what I'm reading, you'll have to make 2 edits:
In /etc/apache2/sites-available/000-default.conf, find “DocumentRoot” and change to the following:
DocumentRoot /path/to/new/root
In /etc/apache2/apache2.conf, find:
<Directory /var/www/html/> Options Indexes FollowSymLinks AllowOverride None Require all granted </Directory>
And change the “/var/www/html” to the absolute path to your desired home directory.
Top questions at Askubuntu
* What is the meaning of the `|` symbol in the shell? http://goo.gl/wME5NU
* I installed a program by getting its source code, and then running `sudo make install`; how to make `apt-get` know about it? http://goo.gl/7Vcpl0
* Why does ^C, ^V, etc. appear in the terminal when I use the Ctrl+character keyboard shortcut? http://goo.gl/AA09Ov
* List all recently changed files (recursive) http://goo.gl/wV3e1Z
* How to charge my Ubuntu phone's battery off my Ubuntu laptop's battery? http://goo.gl/GilP6p
* Where should I keep my personal files while keeping the pathname short? http://goo.gl/zMfj1Z
* How to enter password only once in a bash script needing sudo http://goo.gl/fLesVY
* Can I minimize a window into a box on Unity? http://goo.gl/LTRICz
* How to set the default program to open a certain file-type in a certain folder? http://goo.gl/1BQ1LK
Tips and Techniques
Why?
Why would someone install Linux with an “LVM” disk, when they don't know what that means?
Why would someone install Linux with a software RAID, when they have not spent the time required to understand how software RAID works?
Why would someone assume that their computer will work forever, when their car won't?