Generate Random Password on Linux

Linux has all the tools you need to generate a random password. This can be accomplished by a special file /dev/random, that serves as a random number generator.

How to Safely Remove USB Mass Storage Device

When you click on the “Safely Remove Hardware” icon in the system tray to remove your USB thumbdrive, you may receive an error message saying that it is still in use and you may not be able to remove it successfully.

How to Completely Wipe Hard Disk Contents

If you are planning to discard your old hard disk, make sure that they do not contain any valuable information when they head out of your door. The last thing on your mind is the potential of having your identity stolen from sensitive information stored in that hard disk.

How to Decompile Java Classes

Java class files are compiled bytecode files that could be loaded and run on a JVM or a Java Virtual Machine. To generate a Java source file from a Java class file, you will need a Java decompiler.

Change IP Address from the Command Prompt

Changing the IP settings from the Windows GUI is a no-brainer! I have never been a fan of using the GUI for system configuration. I change the network settings of the ethernet and wifi interfaces from the command line!

How to Get the Home Directory of an User

To perform disk usage monitoring of users on a UNIX system, you will, first of all, need to determine the home directories of the users. You might ask, “Aren’t all the user home directories found under /home?”. Well, typically yes, but it’s not always true.

How to Perform Reverse DNS Lookup

unix linux

Everyone knows that DNS is used to translate hostnames to IP addresses, but do you know that DNS can also be used to retrieve the domain name when the IP address is known?

Access Experts Exchange Answers for Free

Have you ever asked Google something, and it replied that the answer could be found at the Experts-Exchange.com site ? Only after clicking on that link do you realise that the answer can only be viewed after becoming a premium member. If you would like to view the answers from Experts-Exchange without any subscription or login account, read on.

WZR-HP-G300NH Modding Guide

I recently upgraded to a Buffalo WZR-HP-G300NH home broadband router after my Linksys WRT54GL router running on DD-WRT died on me. I was looking for a router that could support the custom DD-WRT firmware, USB storage, BitTorrent downloads, Optware and with Wireless-N capability. The Buffalo WZR-HP-G300NH simply met all my requirements!