How To Disable Ctrl + Alt + Del On Ubuntu 11

August 23, 2011

To disable the reboot action taken by pressing the Ctrl+Alt+Delete key combination, comment out the following line in the file /etc/init/control-alt-delete.conf.

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How To Backup & Restore Master Boot Record (MBR) In Linux

August 22, 2011

A master boot record (MBR) is a type of boot sector popularized by the IBM Personal Computer. It consists of a sequence of 512 bytes located at the first sector of a data storage device such as a hard disk. MBRs are usually placed on storage devices intended for use with IBM PC-compatible systems.

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How To Clear Shell History On Centos / RedHat

August 22, 2011

To clear shell history, type the following command: $ history -c Or remove .bash_history file $ rm -rf ~/.bash_history

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How To Display All Cron Jobs On Linux

August 22, 2011

Using cron is via the crontab command which allows you to view or edit your crontab file, which is a per-user file containing entries describing commands to execute and the time(s) to execute them.

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Install MongoDB on Linux Using Yum Command

August 19, 2011

In a previous article called “Install MongoDB on Centos / RedHat“, I introduced how install MongoDB using binary package. In this article, i’ll introduce you to install MongoDB using yum command. The first, you need add the appropriate repo. Login root and type the following command # vi /etc/yum.repos.d/mongodb.repo

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Install MongoDB on Centos / RedHat

August 19, 2011

MongoDB (from “humongous”) is an open source, high-performance, schema-free, document-oriented database written in the C++ programming language. The database is document-oriented so it manages collections of JSON-like documents. Many applications can thus model data in a more natural way, as data can be nested in complex hierarchies and still be query-able and indexable.

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