Vison 20-20-20 : A bash Script

 20-20-20 Rule

Anyone who spends more than 3 hours before a computer screen in at the risk of suffering from computer vision syndrome.  Currently an estimated 70 million computer professionals are at the risk of suffering from computer vision syndrome
A programmer spends hours before the computer. To avoid damage to eyes and prevent computer vision syndrome , the 20-20-20 rule is suggested by doctors.
The 20-20-20 rule is as follows:

Look at an object 20 feet away for 20 seconds every 20 minutes.

The Issue

It easier said then done. You simply don't remember when 20 minutes have passed. Thus I have taken efforts to help you with the 20-20-20 minute rule. I have created a bash script vision20 to help with this.

 

Unable to Test Buffer Overflow Attacks with GCC?

Stack Smashing

Recently I was trying to attempt a buffer overflow attack when I came across Stack Smashing Detected. In case you don't know what this is, don't bother reading further.

Looks like GCC has new cool feature which protects codes from buffer overflow attacks. So to some extent even if a programmer doesn't check for a buffer overflow error GCC still might check it and protect the code.