Encrypt with Truecrypt

Today we’ll go over a simple way to encrypt sensitive files on your hard disk, external hard disk, usb thumbdrive and CD. TrueCrypt is a free, open source encryption application that works on Windows and Linux. It creates a virtual hard drive in the form of a single file that will read and write encrypted [...]

How to generate and check md5 sums.

md5 sums are extremely useful. They let us know if something is what we really expect it to be. for instance, if you create a program, and compress it before sending it off, you can generate an md5 sum for it so others can validate that the compressed bit of code they’ve just [...]

Disk Wiping Utilities: How to Get Rid of Your Data Permanently

On one sunny summer day, Mr. and Mrs. Smith (Those 2 characters are completely fictional and are in no way related to anyone) decided that they’d had enough with their old, sluggish computer and wanted to get a brand new one. After doing a traditional format, Mr. Smith decided to put up the system for [...]

Check out TrackMeNot - a new way to obscure your search habits.

Plausible deniability steps forward.  Let me introduce you to TrackMeNot.  From the site:
TrackMeNot is a browser extension that protects web-searchers against surveillance and data-profiling. It does so not by means of concealment or encryption (i.e. covering one’s trail), but instead, paradoxically, by the opposite strategy: noise and obfuscation. With TrackMeNot, actual web searches, [...]

Blocking brute force attacks under Linux

Marius Ducea discussed three ways how to block brute force attacks under Linux using iptables, PAM and fail2ban. All three posts are quite detailed and well written.
iptables is a tool for packet filtering and NAT. You can use it to setup a firewall with shell scripts. A shell script with just a few [...]

Antivirus tools for Linux - Virus threat to Linux on the rise

I just read in the German magazine Computerwoche (print) that the number of Linux viruses doubled in 2005 (863) compared to 2004 (422). These numbers come from Konstantin Sapranov who works as a virus analyst for Kaspersky Lab. Of course, one has to be always cautious with such numbers especially coming from an anti-virus vendor. [...]

Use iPod For Password Recovery

Ever forget you password? Well luckily, we have a quick and easy solution for iPod owners. After completing the following, your iPod will become a password recovery disk, which will allow recovering your system password in case you get locked out. Note: This tutorial is only works for WinXP.
Required Items:

Windows XP Home/Pro
iPod Nano or iPod [...]

Secret codes for Nokia S60: Soft reset and display lifetime timer information

S60Tips has listed three new secret codes for Nokia S60 mobile phones:
*#92702689# (*#war0anty#) - Displays the life timer information of your S60 phone, i.e. the total time of phone call (in minutes).
*#7780# (*#rst0*) - This will soft reset your phone. It is different from *#7370# because all data, like contacts, calendar and notes, are not [...]

Bypass Firewalls with HTTP-Tunnel

Would you like to download BitTorrent files from your work place? Most of the big companies nowadays have firewall or proxies where the administrator can restrict you from doing everything on the internet except checking your email and maybe browsing the internet. You can’t chat, you can’t listen to online music, you can’t download your [...]

Virus Fact: You Need to Be Virus Free

For years I have been advising and informing business men and women that they really “should” keep on top of the virus scene if for no other reason than to save themselves the grief a subsequent virus infection can cause. Those days are way over. You no longer have any choice; you need to make [...]

« Previous Page — Next Page »