[Ubuntu] Login as root user

In this article, I will show you how to login as root after installing Ubuntu system.

By default the root user on Ubuntu doesn't have password, so to login as root you must set password for it using this command:

sudo passwd root

The system will ask you to input your current login user password, after that you could set the password for root.

Now, you want to login as root, just type command:

su root


Notice: The bash symbol in terminal for normal user will be the symbol $ and after logging in as root it will become #

For instance:
approved user: approved@approved-X556UAM:~$
root user        : approved-X556UAM:/home/approved#


 
Good luck.

Source: https://askubuntu.com/questions/91598/how-do-i-login-as-root

[Fedora,Ubuntu,Opensuse...] Install Adobe Flash player on all Linux system

Prepare:

 Information: Base on your linux system, mozilla plugin directory will place in one of the below:

if your linux architecture is x64:
$HOME/.mozilla/plugins
program_directory/plugins
/usr/lib64/mozilla/plugins
/usr/lib64/xulrunner/plugins

if your linux architecture is x86:
$HOME/.mozilla/plugins
program_directory/plugins
/usr/lib/mozilla/plugins
/usr/lib/xulrunner/plugins

In my fedora system x64 architecture it is:
/usr/lib64/mozilla/plugins

Do it:

Step 1: Go to Adobe Flash player download page http://get.adobe.com/flashplayer/
Step 2: Select .tar.gz for linux in "Your system" selection.
Step 3: Click "Download now" and save this file (example : Downloads folder) in Downloads directory
Step 4: Open terminal, navigation to downloaded file and extract it.

mkdir adobeflash

tar -xzvf flashPlayer.tar.gz -C adobeflash

Step 5: Login with root user (su root, enter and type password for root user) and move to adobeflash directory
Step 6: cp -r usr/   /usr

Step 7: cp libflashplayer.so  /usr/lib64/mozilla/plugins

Step 8: Restart firefox and enjoy :)

Note: If it still not effect, it is because your selinux is turn on, you can turn it off by open terminal -> login with root -> execute command setenforce 0 -> restart firefox