Tips and Tricks

Why does a server block my public IP?

Most servers are configured to prevent brute-force attacks. Brute-force is a trial and error method used by application programs to decode encrypted data such as passwords, through extensive effort (using brute force).

When you accidentally enter a wrong password multiple times either on cPanel, Webmail or configure your email client with wrong credentials or unintentionally try to gain SSH access to a server through the wrong port multiple times a server sees it as a brute force attack. The server will then block your IP address to prevent any security compromise.

How do I reset my Joomla admin password via PHPMyAdmin?

This tutorial is a guide to resetting your Joomla (versions 1.5, 2.5 and 3.5) administrative account password through the database manager phpMyAdmin.

However the simplest way to reset your password is by using the lost password feature; the site will send an email to the user's email address which will allow you to change the password.

How do I take a screenshot?

There are various ways to take a screenshot / screen dump but the most simplest method is by pressing the Prt Scr button on the keyboard.

The screen dump is saved to your clipboard and you may paste it into any graphic editor like paint for instance.

If in the other hand you were using a MAC, you can do the following:

  • Command + Shift + 3: Take a screenshot of the screen, and save it as a file on the desktop.
  • Command + Control + Shift + 3: Take a screenshot of the screen and save it to the clipboard.

How do I flush my DNS cache?

For Windows systems

  1. Open the Start menu.
  2. Go to Run. If you do not see the Run command in Vista, search for "run" in the Search bar.
  3. In the Run text box, type: ipconfig /flushdns
  4. Press Enter and your cache will be flushed.

For Mac systems

  1. Go to Applications.
  2. Go to Utilities.
  3. Open the Terminal application.
  4. Type: dscacheutil -flushcache
  5. Press Return and your cache will be flushed.

How do I clear my browser's cache?

This would depend on the browser you're using as each has it's own set of instructions on clearing the cache.

What is browser cache?

All web browsers stores various types of information like images, style sheets and other bandwidth heavy data so that when you revisit that particular website that it the browser does not have to download as much data as when you first visited that website.

This has the advantage that it speeds up loading times and allows you to browse your favourite websites much faster. This feature is called the browser's cache.