Author: Rahul

After installing a new Tomcat server, there will be no user created by default to access Administrator and Manager web interfaces. After completing the installation set up Tomcat Admin and Manager user accounts and set their passwords. You can also visit our following articles about installing Tomcat on Linux systems. How to Change Tomcat Administrator Password To create user account edit conf/tomcat-users.xml file in editor and copy below configuration inside the <tomcat-users>…</tomcat-users> tags.

How to Change Tomcat Manager Password

As per the above configuration user manager only can access the manager web interface but the admin can access…

Brackets is a lightweight, modern, powerful text editor for web developers to edit source codes. It is also available for Linux systems. It has lots of features which you must love to use. This article will help you for installing Brackets Text editor on Ubuntu and Debian systems using apt-get or ppa. Features Provides in-line editing of source. Provides provides live preview for various browser. Brackets work with preprocessors in a whole new way. It provides improved typing performance with code hints. Install Brackets on Ubuntu Brackets Text Editor PPA is maintained by the webupd8 team for Ubuntu installations. Use…

A “tar.bz2” file is a type of compressed file created using the Unix/Linux tar command coupled with the bzip2 compression method. This format is especially useful for combining and shrinking large files or file collections into a more manageable and transferable single file. To make such an archive, one employs the tar command to gather multiple files or directories into one archive, and then applies the bzip2 algorithm to reduce the archive’s size. This produces a file with the extension .tar.bz2, which can be decompressed using the tar command and the -j option. This tutorial offers guidance on: Decompressing a…

Phalcon is a high performance Php framework with MVC support. Its is very useful framework for developing dynamic applications rapidly. This article will help you install and enable Phalcon php framework in CentOS, Redhat and Fedora Systems. Install Required Packages To start with Phalcon Project, we first need to setup a running LAMP server. If you have already running LAMP stack skip this step else use followings commands to setup lamp stack. Install Apache # yum –enablerepo=remi,epel install httpd Install MySQL # yum –enablerepo=remi,epel install mysql-server # service mysqld start # /usr/bin/mysql_secure_installation Install PHP # yum –enablerepo=remi,epel install php php-mysql…

Welcome! If you’re here, it’s likely because you’re excited about harnessing the power of Phalcon, the high-performance PHP framework, in a Linux environment. In this article, we’ll walk you through the process of setting up your first project using Phalcon Developer Tools on a Linux system. Prerequisites Before starting, ensure that you have the following installed on your system: PHP 5.7 or higher: Phalcon is a PHP-based framework, so you’ll need a compatible PHP version installed. You can check your PHP version by running `php -v` in your terminal. Phalcon PHP extension: This is the core Phalcon framework. You can…

Phalcon is a high performance Php framework with MVC support. It is a very useful framework for developing dynamic applications rapidly. This article will help you install and enable the Phalcon PHP framework in your Ubuntu system. Prerequsities Firstly you need to install some prerequisites packages in your system using the following commands. sudo apt-get install gcc libpcre3-dev software-properties-common Then install PHP 5.6 or later version with required modules. sudo add-apt-repository ppa:ondrej/php sudo apt-get update sudo apt-get install php php-curl php-gd php-json php-mbstring Install Apache2 sudo apt-get install apache2 libapache2-mod-php Install MySQL sudo apt-get install mysql-server php-mysql Install Phalcon PHP…

Symbolic links, also known as symlinks, are special files that allow you to create a shortcut to another file or directory on your system. They are an essential tool in Linux that can help you save disk space, streamline file organization, and simplify the development workflow. A hard link is effectively an identical replica of the file, therefore the hard link and the actual file will both have the same inode. A soft link, also known as a symbolic link, functions similarly to a shortcut or pointer to a file. It is not an exact replica of the file, but…

Sublime Text is a powerful text editor also available for Linux systems. It has lots of features which you must love to use. This article will help you to install Sublime Text 3 and Sublime Text 2 on Ubuntu systems using apt-get and PPA. You may also like other powerful text editors like Atom, Visual Studio Code, Notepadqq, and Brackets for your Ubuntu systems. Step 1 – Enable Sublime PPA Use the sublime official Apt repository for the installation of Sublime on Ubuntu systems. First of all, you need to import gpg key on your system. wget -qO – https://download.sublimetext.com/sublimehq-pub.gpg…

Some times you need to check how many packages are installed on your Linux box. This article will help you to find all installed packages on Redhat and Debian based Linux systems. List Installed Packages Use one of following commands to list all installed packages on CentOS, RedHat, Fedora, Ubuntu, Debian and LinuxMint systems On CentOS, RHEL & Fedora: # rpm -qa # Using rpm command # yum list installed # Using yum command On Ubuntu & Debian: # dpkg –get-selections $ apt list –installed # Ubuntu 14.04 or above

When using keys for SSH (Secure Shell) connections, different programs often need different formats. Two common key formats are PEM (Privacy Enhanced Mail) and PPK (PuTTY Private Key). PuTTY, an SSH client, uses the PPK format, but sometimes you might get a PEM format key. So, you need to convert PEM to PPK. In this article, we’ll show you a detailed, step-by-step guide on how to convert PEM to PPK using a free tool called PuttyGen. PEM to PPK conversion (quick instructions) Here is the quick instructions to convert PEM file to PPK using puttygen. Download and install PuTTYgen on…