Suppose a person is driving a car on a highway at a speed of 70 miles per hour. Now, somehow the car meets with an accident. Fortunately the airbag deployed at the right time and saved the life of the driver. So, we see that airbag is a very good feature in a car which [...] Read More: What is RTOS? – Real Time Operating Systems Basics

When you implement Apache Hadoop in production environment, you’ll need multiple server nodes. If you are just exploring the distributed computing, you might want to play around with Hadoop by installing it on a single node. This article explains how to setup and configure a single node standalone Hadoop environment. Please note that you can [...] Read More: Apache Hadoop Single Node Standalone Installation Tutorial

In C programming language, the concept of pointers is the most powerful concept that makes C stand apart from other programming languages. In the part-I of this series we discussed the fundamental concepts around C pointers. In this article, we will try to develop understanding of some of the relatively complex concepts. The following are [...] Read More: C Pointer to Pointer, Pointer to Functions, Array of Pointers Explained with Examples

Every Linux distribution have some kind of logging mechanism that records all the system activities. A while back we provided a list of 20 log files that are stored under /var/log that you might be helpful during troubleshooting. These logs are very critical for sysadmin for troubleshooting purpose. The following are the three common methods to log [...] Read More: How to Setup Rsyslog Remote Logging on Linux (Central Log Server)

Though TCP protocol is a connection oriented and reliable protocol but still there a various loopholes that can be exploited. These loop holes are mostly explained in terms of attacks. In the previous article on the TCP/IP Attacks series, we explained about ARP Cache Poisoning. This article explains the following two attacks:  TCP sequence prediction [...] Read More: TCP Attacks: TCP Sequence Number Prediction and TCP Reset Attacks