Passwordless ssh into a server

You have a machine to which you have to login all the time. and that includes entering your password to authenticate yourself to the server. Taxing! isint it??

A simple quirk is to make yourself "known" to the server so that it doesnt ask you to authenticate yourself everytime you login to the server...

2 steps , thats all you need baby!

* ssh-keygen
* ssh-copy-id <servername>

Consider Host A and Host B. Host A is your local computer and Host B is your Server.

'''On Host A'''
 ssh-keygen
this will create two keys id_rsa and id_rsa.pub in your local machine.

'''On Host A'''
ssh-copy-id mcs112578@palasi.cse.iitd.ac.in
this will copy the id_rsa.pub file into the authenticate keys. Done!

Now try ssh ing into the Server... see the difference !! (No password required !!)

==Don Jaffer==

Linux Shortcuts : Open terminal - Maximize Terminal

<note>
I am mentioning the default keyboard shortcuts as available in Ubuntu, you can change it going into System > Preferences > Keyboard Shortcuts
</note>

Open the terminal using the shortcut
            Ctrl + Alt + T
Maximise by pressing the 3 keys in the following sequece (Note that timing and sequence is important here, you might take a little time to get a hang of it)

Press
             Alt + SpaceBar
one after the other in quick succession

Press
             'X'
after releasing Spacebar .

Vim Command to split the screen

To Split the screen in vim:

open the file in vim
   vim abc.txt

to split the screen

ESC
:sp

This is the default way to split the screen and results in the screen being split horizontally.

ESC
:vsp

This is used to split the screen vertically.
 
to switch Control between two screens

Ctrl + W +W (Hit W twice)

FIREBUG - Addon of Firefox to View WebPage Source

I just started developing a webpage for my college project and was browsing through the net for some really good web interfaces.
I even came across quite a few web-pages, and tried to get the source code from the standard Tools>> WebDeveloper >> Source Code Menu.

Though getting the code was easy, getting which part of the code corresponded to which part if the webpage was very taxing.

After racking my brain through a number of websites, one of my friends suggested an awesome addon of firefox that can help you to understand the code of a webpage.

its called FIREBUG!!

All you need to do is add the Add-On to firefox, and click on whichever object's code you wish to see in the webpage.

The code corresponding to the tool gets displayed at the bottom of the page, and even if there is .css associated with the page, you can view that in the other page that is opened.

Ill elaborate on my findings after exploring more on Firebug.

Till then ... bbye!