Make Classic looks on Ubuntu 10, 11, 12 more beautiful

First:

Revert to Ubuntu Classic
http://askubuntu.com/questions/58172/how-to-revert-to-gnome-classic

Install

• Gnome Shell
• Gnome Tweak Tool

Change the theme to Adwaita...

It will look ugly, well we will try gnome 3 theme

Use WebUpd8 PPA - we will find a lot of gnome3 shell extension here

https://launchpad.net/~webupd8team/+archive/gnome3

$ sudo add-apt-repository ppa:webupd8team/gnome3

Use new theme;

my number one :)
Adwaita Cupertino

http://gnome-look.org/content/show.php/?content=147061
   This is just GTK theme, there's no gnome-shell theme. so use gnome-shell theme from below source.

This Zukitwo Cupertino 
    This will fullfill the beauty of the Adwaita Cupertino (additional Gnome Shell theme)
http://gnome-look.org/content/show.php?content=149412

Drafire Caffe GTK 3 theme

 

http://drakfire86.deviantart.com/gallery/#/d3etzpd

Use new icon; Faenza Icons

http://tiheum.deviantart.com/art/Faenza-Icons-173323228
 
Plus Icon in blue color more feels like OSX 

Faenza cupertino
    http://gnome-look.org/content/show.php/Faenza-Cupertino?content=129008.

This is require base Faenza package.
 

tar everything except the files (or some of files)

Using this command when want to tar everything in a folder except some of the files (binary files)

# tar -cjvf ../packed_no_bin.tar.bz2 * --exclude=*.gz --exclude=*.bin --exclude=*.rpm

if there's another file type that didn't want to tar just put another

--exclude=<pattern>

SSH Problem: REMOTE HOST IDENTIFICATION HAS CHANGED

How to fix "REMOTE HOST IDENTIFICATION HAS CHANGED"

by execute this command

# ssh-keygen -f "<home path>/.ssh/known_hosts" -R <IP address that going to connect>

Example:
    ssh-keygen -f "/root/.ssh/known_hosts" -R 192.168.1.85

When try to connect again this time it will ask to accept a new fingerprint.

Use this solution at your own risk ;)