Verify SSL Certificate Using OpenSSL Tools

This guide provides step-by-step instructions to verify and simulate SSL certificates using OpenSSL commands. 1. Check Individual Certificate Details: Command: openssl x509 -in my.crt -text…

Analyzing CPU Performance in Linux

Analyzing CPU Performance in Linux: A Comprehensive Guide Introduction Understanding and optimizing CPU performance is crucial for maintaining the efficiency of Linux systems. This guide…
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Set Operations in Linux

  Set Union The set union operation unions two sets, i.e., join them into one set. We write C = A ∪ B to denote…

Optimizing Apache MPM Prefork for High Traffic Loads

Apache HTTP Server is renowned for its reliability and performance. However, the default configuration of Apache may not be optimized for handling high traffic volumes…

Important windows commands

Check the remote port status curl -v telnet://<IP>:<Port> Test-NetConnection <IP> -port <Port> Mapping port using SSH tunnel ssh -N  <user>@<remote_host>  -L 8080:localhost:80 This command will…
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Create separate web directory for each Linux user

In this article we will configure separate web directory for each Linux user. We will use Apache/2.2.15 (Unix)  web server and Red Hat Enterprise Linux Server.…
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Ansible Exam (RHCE 8) full solution with explanation

  The RHCE 8 exam is totally based on Ansible. Generally, 15-17 questions are asked to solve in the exam. In this article, I will…
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Install Ansible on CentOS 8

Ansible is used to manage and administer multiple servers from a central computer. Installing Ansible on CentOS 8 is very straightforward. Enable epel-release first and…

Recover MySQL 5.7 root Password in Redhat/CentOS 7

You can recover MySQL 5.7 root Password with following 9  easy steps. These commands will work in Redhat/CentOS 7 Step-1: Stop MySQL server systemctl stop…

SSH login without password in Linux

For many reasons we need to access remote server automatically without providing password. Specially when you need to copy file through script or programming from…
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How to write automated FTP script in Linux

In this article I will show you how to write automated FTP script in Linux. File Transfer Protocol (FTP) is typically used to copy files…
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Installing Nginx with PHP support

This article will teach you “Installing Nginx with PHP support” in  CentOS 7/Redhat7  webserver. Nginx has grown in popularity since its release due to its…
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How to access HTML5 local storage

HTML5 is becoming a common platform for both Web and Apps.  I personally started learning HTML5 when I decided to develop Apps for Android and…
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Embedding Google Map in webpage

Google Maps offers powerful, user-friendly mapping technology and local business information — including business locations, contact information, and driving directions.  Google Map offer free HTML…
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Creating Custom Google MAP

Creating Custom Google MAP is an easy but powerful  way to represent  your location. You can  create  custom Google Map  and embedded it into your…

fixing mysql replication error automatically

This article is written for those who have already read article “MySQL Replication skip error” . In that article I explained how to find out replication…
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Create database and user in phpMyAdmin

phpMyAdmin is a great tool to manage MySQL and MariaDB database.  Every cPanel allows  phpMyAdmin interface to manage the hosting database. It is often required…

Install WordPress in Bangla

Install WordPress in Bangla WordPress displays in U.S. English (en_US) by default. But the software has the built-in capability to be used in any language..…
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Install WordPress in other language

Install WordPress in other language WordPress displays in U.S. English (en_US) by default. But  the software has the built-in capability to be used in any…
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Top 3 alternatives of Google Adsense

Google Adsense is the best advertising network for online earning. However, nowadays it is very difficult for new bloggers or website owner to get approved…
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Top 7 Social Networking Sites

The most popular social networking sites sure have changed over the years, and you can expect them to continue to change as times goes on. Old social…
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Sum Column in Linux

Sum column in Linux  is very easy  and you can do it by a single command.  If you have a file with multiple columns and…

MySQL Replication skip error

MySQL Replication skip error There are two ways you can configure MySQL replication : normal and GTID based replication. From MySQL 5.6 GTID based replication…
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Important Linux and Unix Commands

  Necessary Linux / Unix Commands There are a lot of articles on the web regarding Linux commands. Here I have listed some of my…

Install OCI8 on CentOS/Redhat/Fedora

Install OCI8 on CentOS/Redhat/Fedora The post will describe how to Install OCI8 on CentOS/Redhat/Fedora in step by step. The easiest way to configure PHP to access…