Author: Rahul

Introduction Telnet, a network protocol used for accessing remote servers, may seem like a relic in the age of advanced communication technologies. However, it remains a useful tool for administrators, developers, and IT professionals for testing and managing network services. Windows, by default, does not have the Telnet client installed and enabled. This article provides a comprehensive step-by-step guide on how to enable the Telnet client in Windows. What is Telnet? Telnet, short for ‘Teletype Network,’ is one of the oldest Internet protocols. It allows users to communicate with a remote server or device. Primarily used for remote management, Telnet…

Warning – Java 7 is officially deprecated by Oracle team. It is no more available for download on the public network. The Oracle team recommends upgrading to Java 8 or Java 9. You can follow below tutorials to install accordingly. JAVA 8 – Install on CentOS, Red Hat, Fedora JAVA 9 – Install on CentOS, Red Hat, Fedora During installation of Java using rpm files, I faced issues many times. After that, I found a better way to install java from Sun site. Using below steps I have installed java successfully many times without facing any issues. We can also…

In PHP, splitting a string into an array is a common task that can be accomplished using a variety of functions and techniques. The `explode()` function is a convenient and efficient option that allows you to split a string into an array based on a delimiter. – In this article, we will explore how to use the explode() function to split a string into an array in PHP, as well as some alternative functions and techniques that you can use depending on your needs. Whether you need to parse a CSV file, extract substrings from a string, or split a…

The default document is the file which is served by web server when no file name is specified by user in web url. By default most of web servers uses index.html, index.htm, default.html, default.htm, default.aspx, etc file names as default document if no default document is specified for the website. This article will help you to set default document in IIS for any website configured. To do it follow the below step by step instruction’s: 1. Start IIS Go to run window and type “inetmgr” and hit enter to open IIS web server in your windows system. 2. Select Default…

mails play a crucial role in modern communication, and while services like Gmail, Yahoo, and RediffMail offer user-friendly web interfaces, there are times when sending emails directly from the command line is necessary. This guide introduces various methods to send emails from the Linux command line, ideal for integrating into shell scripts, cron jobs, and more. Here, we explore several command-line methods for sending emails, focusing on the most popular choices among users. Choose any of the following methods to efficiently send emails from the Linux command line. 1. Using ‘sendmail’ Command Sendmail, a widely used SMTP server in Linux/Unix…

A Query String is a part of url accessed through web browser. Using query string we passed the argument to web pages. Using this article we will help you to how to fetch values of query string using php script. Fetch Query String: We can fetch url Query String values from $_SERVER array like following example. <?php $qs = $_SERVER[‘QUERY_STRING’]; ?> Parse Query String: Now we can parse the query string and store it to an array using parse_str function. <?php parse_str($qs, $qs_arr); print_r($qs_arr); ?>

CakePHP is a PHP framework for rapid development of web application. Recently CakePHP has released its latest version 3.8 with a variety of changes to improve speed and security. This article will help you to Setup CakePHP 3.8 (or latest version) on Ubuntu 18.04 & 16.04 LTS systems. Requirements:- PHP 5.6.0 or greater (including PHP 7.3). MySQL (5.5.3 or greater) PHP mbstring extension PHP intl extension Step 1 – Install LAMP Server You can skip this step for the system having LAMP setup already. If you don’t have LAMP installed on your system proceed with the following commands to Setup…

Today I have installed new WHM/cPanel server on an AWS instance. Generally AWS servers are used key based login for ssh users and users don’t have root password. So I have manually reset root password through command line. After installation of cPanel when I tried to login to WHM using web browser I got The login is invalid error even I was using correct login user and password. I tried the same thing by changing root password 3-4 times but still facing same issue. Error: The login is invalid After that I google about this issue and found few solutions…

Problem: ERROR: Site example.com does not exists! This error I have faced when created a new virtual host in Apache on my Ubuntu system. I create a virtual host configuration file in /etc/apache2/sites-available/ directory with name example.com. Now I tried to enable the website using a2ensite command and faced the following issue. a2ensite example.com ERROR: Site example.com does not exists! Solution: The problem was that all virtual host configuration files must have .conf extension in their filename. So I simply renamed example.com with example.com.conf. cd /etc/apache2/sites-available/ mv example.com example.com.conf and again tried to enable website using same command and this…

Indicator SysMonitor is a useful utility for displaying CPU and memory usage on the top bar. It also displays various temperature sensors on the bar. It also allows users to run there own commands the show the output on the topbar. Indicator SysMonitor can works with gnome-panel and Unity properly. Install Indicator SysMonitor Indicator SysteMonitor is bebing maintain by fossfreedom. Use following commands to install it on Ubuntu systems. sudo add-apt-repository ppa:fossfreedom/indicator-sysmonitor sudo apt-get update sudo apt-get install indicator-sysmonitor Start Indicator SysMonitor Open Ubuntu search box and start typing sys…, You will get search results like below. Now just click…