So, this is the second last part of the long awaited MySQL datetime series. Previously we have leant how to work with MySQL datetime datatypes and how to automate some insertions using some MySQL datetime commands. Obviously the only thing left to discuss is, the (difficult) datetime arithmetic inside MySQL. As in any language, the datetime arithmetic is not as straight forward as normal arithmetic. The reason is simple, we can’t say...

This is a nice piece of program I wrote a few months ago. One of my students requested me to write this. So, here it is! Hope this might be useful for you… #1: What the program does: This program finds all the occurrences of a sub-string within a given string and replaces that with our provided string. Basically there are many similar programs but, most of them lack the ability to find multiple occurrences. So I wrote this keeping in...

So, this is our first C program in the blog. We first thought of creating a separate blog for C & C++ related posts, but because of the maintenance issue, we finally decided to merge it to the main blog. So, without any further here is the program. #1: What the program does: This program is a practical implementation of the data structure “Linked List“. We use a linked list to dynamically store user input of polynomial...

In our last post, we talked about the fact that we got hacked because of TimThumb vulnerability. While fixing the vulnerability, I realized that, we were not the only one who got hacked. Plenty of websites using TimThumb to resize their images, got hacked. So, I thought of putting together a nice step by step guide on how to recover from this kind of hack. Please note that, while the nature of the hack may vary, we are trying to give an...

It’s been quite a long and this time, I really had to suffer for my negligence. For a past few days, if you had a visit to our blog or any of our network sites, you should have noticed a “Malware Warning”. This was because of the known vulnerability of TimThumb which our theme was using. I believe on 7th Nov, our intechgrity blog was compromised and suspicious codes were injected. The worst thing was, all the index.php...