LVM- Linux Interview Questions

Logical Volume Management (LVM) makes it easier to manage disk space. If a file system needs more space, it can be added to its logical volumes from the free spaces in its volume group and the file

Commonly use Port numbers for the Linux System Administrator

The port numbers are divided into three ranges: the Well Known Ports, the Registered Ports, and the Dynamic and/or Private Ports. The Well Known Ports are those from 0 through 1023. The Registered Ports are those from

Encrypt Messages & Files Using OpenSSL on Linux

OpenSSL is an effective cryptography toolbox. Many of us have used OpenSSL for making RSA Private Keys or CSR (Certificate Signing Request). However, did you realize that you can use OpenSSL to encrypt files or messages? This

How to Install Grunt & Grunt-cli on Ubuntu

Grunt is a Javascript task runner that can be used to compile Sass, run JSHint, or run many other plugins. Grunt has a long list of plugin to perform tasks provided by its community. It depends on

Commonly use Java Keytool Keystore Commands

Java Keytool is a key and certificate management. It permits users to deal with their own public/private key pairs and certificates. It additionally permits clients to cache certificates. Java Keytool stores the keys and certificates in what

Special File Permissions in Linux

Three unique types of permissions are accessible for executable files and directories. Special permissions on files and directories in linux are : SetUID, SetGID and Sticky piece. You should be greatly cautious when you set special permissions.

How to Install Firefox 46 in Linux

Firefox is a free and open source web browser from Mozilla. Firefox 46.0.1 Released for systems and Android on May 3, 2016 with various bug fixes major issue related to add-on memory leaks. What’s new and What’s

How to Change Default Apache ‘DocumentRoot’ in Linux

The word, Apache, has been taken from the name of the Native American tribe ‘Apache’, well known for its skills in warfare and strategy making. Apache is the most broadly used web server software. Apache is a

How to Install Netdata Monitoring Tool For Linux

Netdata is a free software (a daemon) which gathers a real-time performance data from Linux systems, Application, and SNMP devices, picture it in the web-based interface. Netdata additionally gives the representation of past data’s. In simple word,

How to Install WordPress Using Nginx on CentOS/RHEL 7/6/5

WordPress is the most widely used open source web blogging and content management software written in php and MySQL. Here is the small tutorial on setting up WordPress installation with Nginx on CentOS 7. In this article,