Saturday, November 28, 2009

Puppy Linux : Give life to your Thumb drive

If you didn't tried Puppy Linux - one of the smallest Linux, core's yet-remember, you have only one life, try Puppy today itself. Puppy Linux - the name is not much inspiring for geeks, but I found it is the most stable and useful OS in the pocket Linux category.
It has the following advantages over other less-sized Linux operating systems.
  • Small sized. Ranges between 80MB to 150MB
  • Install anywhere - HDD, USB Pen drive, biz. card sized CDs. (You can use ordinary CDs, DVDs, Blu-ray discs - but it is too big for puppy.)
  • Easy to use.
  • Official website offers boot time of less than 1 minute. But it is typically less than 15s in my Intel P4 with 2GB RAM.
  • Puppy is beautiful than any other pocket OS.
  • Smart and crash free. I used more than 10 Linux flavors. Everything crashed, but I haven't experienced Puppy's crash.
  • Puppy sessions are saved in *.sfs file. It can be placed everywhere. Puppy search for it at boot time to recover the previous session. There are a number of fundamental advantages for that. I found many of my friend's computers not supporting USB boot. Of course they can boot from a CD-RW but it is not writable. Puppy offers several ways to overcome it. One is that, it can write previous sessions in CD as a multi session write. But it can be used until CD size limits. Another way is to write *.sfs file in HDD (for home usage) or USB pendrive ( for portability) and puppy kernel file in a a CD. So CD can be booted easily and can save sessions.
  • You can resize puppy save session file while running.
  • Comes with almost all drivers.
  • A wide variety of Puppy flavors are officially and unofficially available. These flavors are called 'Pupplets'. Pupplets are intended for a particular task - ie, it supports a task greatly. There are pupplets for painters, gamers, processionals, children, students and so on.
  • Brief and understanding tutorials, quick replying forums, community etc.
Once you downloaded Puppy, you have a lot of questions about installation, usage etc. Most of them answered in the official website and associated forums. Otherwise just google for that.

Wednesday, November 18, 2009

How to prevent virus from USB pendrive

Sometimes attacks of virus through USB pen drives are a real headache. Even though most of them are trivial, anti virus programs may not catch them. Use this following techniques in order to prevent them.
  • Make a raw file in the name same of a virus file. Most probably, these these files will be hidden. To view this, a good way is open the pen drive in Linux OS. you can see some names such as "virus.exe" on the root folder of pen drive. If it exists, open it using a text editor program and delete all the characters and if you want, include some raw characters and save. If you don't have any such files, but want to prevent them, you first of all need to find the name of that virus file and make a raw file in any text editor and save it in the same extension of the virus file. I successfully prevented a most common virus named "autorun.inf". Warning : This method not always work.
  • Use a good anti virus on your PC as well as in your pen drive. Some good links are http://www.usbantivirus.net/ and http://www.zbshareware.com/download.html
  • Format your pen drive well, if your head ache is cumbersome. Some virus programs can override quick format in windows. So use GParted.Prevention is better than cure. Formatting is the last chance.