How to recover root password in RHEL 6 ?

How to recover root password in RHEL 6 ?

Boot the system and log in into grub.









Press ‘e’ on the selected entry.

Then select the ‘kernel /vmlinux’ entry and press ‘e’ on it.



Insert the ‘single’ keyword after rhgb quiet.


Press enter

Then press b after selecting the ‘kernel /vmlinux’ entry.

Then on the root prompt issue the following command.

passwd  –d  redhat

this will set the password to blank.

Now boot the system as usual and reset the password by logging into the root account.

courtesy : practical-tech.blogspot.in 

How to Reveal Hidden Passwords (Asterisks) in Web Browsers

Remember the situation, signing into your account with just a single click because browser is saving all your passwords for you. We know this is convenient but since you’re not typing your passwords any-more, eventually you’ll forget your password in a few days.  For security reasons, the password field in all browsers is masked with “asterisks” which won’t allow any third person (even you) to read the origi-nal typed password. But, what if you want to reveal the string behind the asterisks? There is actually few workaround for revealing the original passwords behind the asterisk and over the entire course of this article we’ll be discussing some known ways to reveal the characters behind the asterisks in different browsers.

Reveal Passwords Behind Asterisks or Dots in Different Web Browsers:

Google Chrome:

Starting off with Google chrome, the easiest way to reveal the original passwords behind the asterisk is using inbuilt Inspect element feature in the browser.

• You just need to right click on the password field in the browser where you will get an option "Inspect Element". 
• After clicking on it, "Web Inspector" will open out and there you can see some code which is basically Html code and you just need to replace the "password" word with "text" word and it will reveal the words behind the asterisks.

There’s another way using JavaScript which is quite quick and easy as compared to above method. Just open a site that allows users to login and after typing the password, just enter the following JavaScript code in the address bar.

Javascript: alert(document.getElementById('Passwd').value);

After entering the above code in the address bar, press enter and it will pop up a window with your password written on it.

Mozilla Firefox:

The Next most common browser is "Mozilla Firefox".

• The chrome's "Web Inspector" trick is also applicable in Firefox.
•  Open a site that asks for login (like Facebook), right click on the password field in the browser where you will get an option "Inspect Element". After clicking on it, "Web Inspector" will open out and there you can see some code which is basically Html code and you just need to replace the "password" word with "text" word and it will reveal the words behind the asterisks as shown in screenshot below.

Apart from this, there’s another way which is quite quick and easy as compared to above method. For that you’ve to create a bookmark with the following JavaScript code as URL in it.

javascript:(function(){var s,F,j,f,i;s="";F=document.forms;for(j=0;j<F.length;++j){f=F[j];for(i=0;i<f.length;++i){if(f[i].type.toLowerCase()=="password")s+=f[i].value+"\n";}}if(s)alert("Password is:\n\n"+s);else alert("No passwords");})();

After saving this as a bookmark, open a site that allows users to login and after typing the password, open the saved bookmark by clicking on it and it will pop up a window with your password written on it.

Opera:

Next comes the "Opera" in that you can use "Dragonfly", which is an in built tool, to reveal the words behind the asterisks just like chrome's "Web Inspector". Open a site that asks for login (like
Facebook), right click on the password field in the browser and select "Inspect Element" option. After clicking on it, "Dragon Fly" will open out and you’ll see some code which is basically Html code and you just need to replace the "password" word with "text" word and it will reveal the words behind the asterisks as shown in screen shot below.

Internet Explorer:

In the same manner you can apply this trick on Internet explorer. First of all open any site (Gmail in our case) that allows user login. Now for bringing out “developer tools” press thef12 key. A new window will be opened and press Ctrl+B to enable selection of elements. After that go to login page and select the password field, doing this will take you to the password field’s code in developer window (highlighted by yellow). Now, you just need to replace the "password" word with "text" word and it will remove the asterisk mask in the password field, see screenshot below.

Apart from this, there’s another way which is quite quick and easy as compared to above method. Just open a site that allows users to login and after typing the password, just enter the following JavaScript code in the address bar.

alert(document.getElementById('Passwd').value);

After entering the above code in the address bar, press enter and it will pop up a window with your password written on it. (See pic below)

Wrap Up:

Although there are so many tools out there to help you in revealing the words behind the asterisks and to get the saved passwords with in a browser, you still need to keep your system safe and protected by using "Antivirus" plus "Firewall" to avoid stealing of these passwords by someone who have access to your system. If you can use these tools to reveal your saved passwords then others can also use the same ways to get information of yours

courtesy  : alltechnet.buzz