You may have noticed the warning message while using sudo for the first time on Linux. I think it's fancy to keep the waring message not only for the first time but for all the time, and surely I like it.

To configure firewall as a system admin or even as a normal computer user we need to know the port numbers which will remain open. Here is a list of common port numbers of some common services.

The issue arises because we may not need the same permission for the files as like the directories. Take a website as example. Generally website files have 644 permission and directories have 755 permission.

Here you can change your permalinks as you like and make it SEO friendly. You will find here 4 predefined permalink structure. You can set them. There's also a box called Custom, You can define your own permalink structure here.

ইন্টারনেট এক্সপ্লোরার vs. নেটস্কেপ এবং ইন্টারনেট এক্সপ্লোরার vs. ফায়ারফক্স এর মাঝে ব্রাউজার যুদ্ধের পর অবস্থা যখন প্রায় অনেকটাই স্থিতিশীল, ঠিক তখনই পটভূমিতে গুগল ক্রোমের প্রবেশ।