In the fourth basic web mission, Network Security Sam apparently hasnt learnt anything from his prior mistake. In the third basic web mission, we extracted information from hidden form fields and thereby found out the name of a password file. The procedure is essentially the same in this mission. As usually, check the source code first. These snipets have been formated for easier reading:
As you can see, this level contains two forms. The upper one is the Send password to Sam button, and the lower one is the password field. You should already have noticed the highly suspicious hidden field in the upper form. Its purpose is obvious: it supplies the email address that the password will be emailed to. From merely knowing this address, you cannot achieve anything (except if you managed to hack the hulla-balloo.com server). Therefore, you should alter the field to contain your email address instead of Sams.
In order to enter your own information in to, the hidden field, you can create a local copy of the form. In your modified version, you can either change webmaster to your own email address, or change the type="hidden" to type="text". The prior changes the email address automatically, while the latter allows you to enter another address.
If you are pedantic and want your local version to validate, use the following code.
Remember to change the URL from local to absolute (http://hackthissite.org/missions/basic/4/level4.php instead of /missions/basic/4/level4.php). Save the file as e.g. hackthissite.htm, then open it in your web browser.

This will remove the edit-permissions from users who have not yet logged in. If a guest tries to edit, they will be prompted to log in. Since you would no longer be able to edit using only your IP address as a signature, adding the following line might be desired too:
Trying to access the page was fruitless, and so was trying to access
A while ago, I posted about using FireStats for MediaWiki statistics. For some weeks now, Ive been using FireStats for tracking statistics on this WordPress blog, too. This is by far the best statistics plugin that I have ever seen. You can find out most things about your visitors patterns through a nice AJAX interface. Also, it doesnt use any JavaScript against visitors, which wins it a lot of points in my eyes.
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Todo
This is how to do it on your TI calculator, nicely formated.