Linux provides several powerful administrative tools and utilities which will help you to manage your systems effectively. If you don’t know what these tools are and how to use them, you could be spending lot of time trying to perform even the basic administrative tasks. The focus of this course is to help you understand [...]
Ramesh Natarajan
Most of us work very hard to take good care of others. You do a good job in knocking down your projects at work, you take care of your family well, you spend time with your friends, you help others who are in trouble, etc. Have you ever stopped for a moment and gave some [...]
The name MongoDB was derived from Humongous DB. It is an open source NoSQL database. MongoDB is developed and commercially supported by the company 10gen. The focus of the MongoDB is on scalability and performance. MongoDB is a schema-free document-oriented database. This stores data as JSON objects. Unlike traditional SQL database, you don’t need to [...]
Happy New Year to all TGS readers. We wish you and your family a happy and prosperous new year. I’m very excited for 2013, and extremely committed in producing several high quality tutorials that will educate you on Linux and Open Source Technologies. Apart from the regular tutorials, I’m also working on few additional projects [...]
SQLite3 is very lightweight SQL database which focuses on simplicity more than anything else. This is a self-contained serverless database engine, which is very simple to install and use. While most of the commands in the SQLite are similar to SQL commands of other datbases like MySQL and ORACLE, there are some SQLite SQL commands [...]
This article is part of our ongoing Linux IPTables series of articles. When things are not working as expected with your IPTables rules, you might want to log the IPTables dropped packets for troubleshooting purpose. This article explains how to log both incoming and outgoing dropped firewal packets. If you are new to IPTables, first [...]
Question: I have a disk that is greater than 2TB size. I cannot create a partition on this >2TB disk using fdisk. Can you explain me with an example on how to create a partition on a disk that is larger than 2TB using parted and GPT format? Answer: If you are using fdisk to [...]
Question: I created a backup.sh shell script and added it to my crontab to execute it daily. How do I verify whether the backup cron script job ran successfully? Also, I have several echo statements inside my backup.sh shell script. How do I save the output of my script to a log file when it [...]