Articles

lighttpd Web Server for Ubuntu 16.04

Lighttpd provides a lightweight web server that is capable of serving large loads while using...

10 fdisk Commands to Manage Linux Disk Partitions

fdisk stands (for “fixed disk or format disk“) is an most commonly used command-line based disk...

11 Advanced Linux ‘Grep’ Commands on Character Classes and Bracket Expressions

grep is a command-line utility for searching plain-text data for lines which match a regular...

3 Ways to Delete All Files in a Directory Except One or Few Files with Extensions

In Linux, a shell pattern is a string that consists of the following special characters, which...

3 Ways to Extract and Copy Files from ISO Image in Linux

Use the standard mount command to mount an ISO image in read-only mode using the loop device and...

3 Ways to Find Out Which Process Listening on a Particular Port

A port is a logical entity which represents an endpoint of communication and is associated with a...

4 Useful Way to Know Plugged USB Device Name in Linux

Using USB drives for file transfer is so common today, and for those (new Linux users) who prefer...

4 Ways to Batch Convert Your PNG to JPG and Vice-Versa

Batch processing is the execution of a series of tasks in a program non-interactively. In this...

4 Ways to Disable/Lock Certain Package Updates Using Yum Command

Package Manager is software which allows a user in case of installation of new software,...

4 Ways to Send Email Attachment from Linux Command Line

A MTA is an application responsible for sending and receiving emails from one host to another....

5 Command Line Ways to Find Out Linux System is 32-bit or 64-bit

Here are the five easy and simple methods to verify your Linux system’s OS type. It doesn’t...

5 Ways to Keep Remote SSH Sessions and Processes Running After Disconnection

SSH or Secure Shell in simple terms is a way by which a person can remotely access another user...

8 Linux ‘Parted’ Commands to Create, Resize and Rescue Disk Partitions

Parted is a famous command-line tool that allows you to easily manage hard disk partitions. It...

Add Rainbow Colors to Linux Command Output in Slow Motion

The lolcat program is used for the above purpose. It basically functions by concatenating files,...

Add new addon domain under cpanel

Your account with Ucartz Hosting may include the ability to host multiple websites depending on...

Configure Nginx as a Reverse Proxy for Apache

Here, we are specifing the steps and configuration needed to run Nginx reverse proxy for Apache....

Connecting to your VPS with SSH and improving security
Creating Logical volume based file system using Ansible

Ansible is an automation, configuration, and infrastructure management tool. Configuring LVM with...

Creating a cPanel User Account under your WHM Panel

To create a new account go to WHM >> Account Functions >> Create a New Account. To...

Disable MySQL Strict mode

To remove MYSQL strict mode from servers, run following commands: mv -v /usr/my.cnf...

Easily Correct a Typo of Previous Command Using Carat (^) Symbol

Typed a command and rushed to hit Enter, only to find that you had a typo in it. While you can...

Email going to spam

If the email you send is going to spam, there are a few options to explore: IP ReputationCheck...

Find Top Running Processes by Highest Memory and CPU Usage in Linux

The following command will show the list of top processes ordered by RAM and CPU use in...

Fix HTTP Error 404 - Not Found errors in yum

If you cannot install or update software via yum and you see 404 errors like this:...

Getting started with acme.sh Let's Encrypt SSL client

Acme.sh is a simple, powerful and easy to use ACME protocol client written purely in Shell (Unix...

HOW TO USE THE VIRUS SCANNER IN CPANEL

How to use the virus scanner in cPanel to scan your account files for viruses, trojan horses, and...

Hide Nginx & PHP versions in HTTP Header & Error Pages?

Step 1: Open your Nginx server configuration file /etc/nginx/nginx.conf (it’s the default path,...

How To Assign Output of a Linux Command to a Variable?

When you run a command, it produces some kind of output: either the result of a program is...

How To Create Additional FTP Accounts On VestaCP?

If you want to allow additional users to manage the files of your website, you can create...

How To Create a Linux Swap File?

Swap space/partition is space on a disk created for use by the operating system when memory has...

How To Install FFmpeg on Ubuntu 18.04 / Ubuntu 16.04 & Linux Mint 19?

FFmpeg is an open source software (also a command line tool) for transcoding multimedia files. It...

How To Install Ionic Framework on Debian 9/8?

1. Install Node.js You must have Node.js installed on your system. Use the following commands to...

How To Install MongoDB on Debian 9 / Debian 8

MongoDB is an open source cross-platform, document-oriented database. It was designed with both...

How To Install Plex Media Server on Ubuntu 18.04 / Ubuntu 16.04 & Linux Mint 19

Plex is a streaming media server that helps you organize your video, music, and photos and stream...

How To Install Visual Studio Code on Ubuntu 18.04 / Linux Mint 19 & Debian 9

Visual Studio Code is a free cross-platform source code editor developed by Microsoft. It has...

How To Install Zabbix Agent on Debian 9/8?

Zabbix Agent is required to install on all remote systems needs to monitor through Zabbix server....

How To Install xrdp on Red Hat Enterprise Linux 8?

xrdp is a free and open-source Remote desktop Protocol server which allows you to take remote...

How To Run Minecraft Server?

Minecraft is a 3D game based on pixels. This game has created a lot of popularity among Internet...

How do I enable LVE and PHP Selector in LiteSpeed?

In LiteSpeed admin interface do the following: Configuration -> Server -> Edit ->...

How do I move /usr/share/cagefs-skeleton to other place because of low disk space

  NOTE:If you are placing skeleton in /home directory on cPanel servers, you must configure the...

How do I use .html files to run Server Side Includes (SSI)?

Apache Handlers   The .html files do not run server-side includes, but .shtml files will. To...

How to Add New Disks Using LVM to an Existing Linux System?

LVM (Logical Volume Management) is a flexible and advanced option available to manage hard disks...

How to Auto Execute Commands/Scripts During Reboot or Startup?

You put in motion a series of events that lead to a fully-functional system – sometimes in less...

How to Backup or Clone Linux Partitions Using ‘cat’ Command?

A rough utilization of Linux cat command would be to make a full disk backup or a disk partition...

How to Build Nginx from source on Debian 9

Nginx (pronounced "engine x") is an open source web server software designed with high...

How to Build Nginx from source on Fedora 29

Nginx (pronounced "engine x") is an open source web server software designed with high...

How to Check Bad Sectors or Bad Blocks on Hard Disk in Linux?

A bad sector/block, it’s a section on a disk drive or flash memory that can not be read from or...

How to Check MD5 Sums of Installed Packages in Debian/Ubuntu Linux?

To Verify Installed Debian Packages Against MD5 Checksums   On Debian/Ubuntu systems, you can...

How to Check Remote Ports are Reachable Using ‘nc’ Command?

A port is a logical entity which acts as an endpoint of communication associated with an...

How to Check Timezone in Linux?

There are a number of time management utilities available on Linux such as date and timedatectl...

How to Compile Brotli Compression Tool from Source on Fedora 29

Brotli is a generic-purpose lossless compression algorithm that compresses data using a...

How to Compress and Decompress a .bz2 File in Linux?

To compress a file(s), is to significantly decrease the size of the file(s) by encoding data in...

How to Configure Disk Quota on Ubuntu Server

Types of quotas Usage quota or Block quota: It limits the amount of disk space that can be...

How to Configure Network Static IP Address on RHEL or CentOS 8/7?

 Let us set up a Static IP address on network interfaces using system network-scripts. Also, you...

How to Convert Files to UTF-8 Encoding in Linux?

character encoding is a way of informing a computer how to interpret raw zeroes and ones into...

How to Convert From RPM to DEB and DEB to RPM Package Using Alien??

Alien, a tool that converts between different Linux package formats, with .rpm to .deb (and vice...

How to Count Number of Files and Subdirectories inside a Given Directory?

The easiest way to count number of files and subdirectories in a directory using a tree command,...

How to Create WHM Accounts/Master/Alpha in Zamfoo ??

1. Login to your WHM 2. Click on Add Package 3. Create a Package for Reseller/MasterReseller...

How to Create a Shared Directory for All Users in Linux?

To enable write access to all users on a particular directory (shared directory) in Linux....

How to Create and Extract Zip Files to Specific Directory in Linux

Zip is a simple, cross-platform file packaging and compression utility for Unix-like systems...

How to Delete User Accounts with Home Directory in Linux?

You may have to remove users account at after sometime when a user account may become dormant for...

How to Determine and Fix Boot Issues in Linux?

The Linux system boots so fast that most of the output scrolls by too quickly to read the text...

How to Disable/Lock or Blacklist Package Updates using Apt Tool?

APT means Advanced Packaging Tool is another package manager found on Linux based systems....

How to Enable Cloudflare on your Website?

Login to your cPanel, Find the following Option and click on it – A login page will Open. If you...

How to Enable Railgun on your Website for free?

Prerequisites – This guide assumes that you are already using CloudFlare on your website on a...

How to Encrypt and Decrypt Files and Directories Using Tar and OpenSSL?

To create and encrypt a tar or gz (gzip) archive file with OpenSSL, the conventional form of...

How to Extract Tar Files to Specific or Different Directory in Linux?

The tar utility is one of the utilities that you can use to create a backup on a Linux system. It...

How to Find MySQL, PHP and Apache Configuration Files?

MySQL database server (my.conf), PHP programming language (php.ini) and Apache HTTP server...

How to Find Number of Files in a Directory and Subdirectories?

To display the total number of files in the current working directory or any other directory and...

How to Find Out List of All Open Ports in Linux?

The two most popular Internet transport protocols, Transmission Control Protocol (TCP) and the...

How to Find Out Top Directories and Files (Disk Space) in Linux?

As a Linux administrator, you must periodically check which files and folders are consuming more...

How to Find Out What Version of Linux You Are Running?

There are several ways of knowing the version of Linux you are running on your machine as well as...

How to Find a Process Name Using PID Number in Linux?

Linux is a multitasking operating system, it executes several programs simultaneously, and this...

How to Find and Kill Running Processes in Linux?

Process management is one of the important aspects of System Administration in Linux, and it...

How to Find and Sort Files Based on Modification Date and Time in Linux?

Usually, we are in habit of saving a lot of information in form of files on our system. Some,...

How to Fix Yum Error: Database Disk Image is Malformed?

YUM (Yellowdog Updater, Modified) is the default, high-level tool for Linux package management on...

How to Flush Redis Databases and Keys?

Redis has grown to become one of the most popular NoSQL database systems (not to mention cache...

How to Forward Default cPanel Email Account

What is cPanel default email account? when a cPanel hosting account is created, a default...

How to Identify Working Directories Using Shell Characters and Variables?

Ways for a user to identify his/her home, current and previous working directories from the shell...

How to Increase Number of Open Files Limit in Linux?

In Linux, you can change the maximum amount of open files. You may modify this number by using...

How to Install Bolt CMS on Fedora 29?

Bolt is a sophisticated, lightweight and simple CMS built with PHP. It is released under the open...

How to Install Cachet Status Page System on Fedora 29?

Cachet is a beautiful and powerful open source status page system written in PHP that allows you...

How to Install Cachet Status Page System on Ubuntu 18.04 LTS

Cachet is a beautiful and powerful open source status page system written in PHP that allows you...

How to Install Cacti on Rocky Linux and AlmaLinux?

Cacti is an open-source, web-based network monitoring and graphing tool designed as a front-end...

How to Install Craft CMS on CentOS 7?

Craft is an open source CMS written in PHP. Craft allows you to easily create and manage...

How to Install Deno on Ubuntu 20.04?

Deno is a runtime for JavaScript, TypeScript, and WebAssembly based on the V8 JavaScript engine...

How to Install EPESI CRM on Ubuntu 18.04 LTS

EPESI is a free and open source web application and one of the most sophisticated multi-user...

How to Install Fathom Analytics on Ubuntu 18.04 LTS?

Fathom is a self-hosted open source web analytics platform that provides simple, useful website...

How to Install Foreman Server Management Tool on Ubuntu 18.04 LTS?

The Foreman is an open source software for managing the lifecycle of physical and virtual...

How to Install Matomo Web Analytics on Debian 9

Matomo (formerly Piwik) is a free and open source web analytics application developed by a team...

How to Install Matomo Web Analytics on Fedora 29?

Matomo (formerly Piwik) is a free and open source web analytics application developed by a team...

How to Install Matomo Web Analytics on Ubuntu 18.04 LTS?

Matomo (formerly Piwik) is a free and open source web analytics application developed by a team...

How to Install Nextcloud 15 on Debian 9?

NextCloud is a free, open source and an alternative to another open source file hosting solution...

How to Install Node.JS 8 LTS on CentOS 7,Debian 8,and Ubuntu 16

Node.js is an open-source, cross-platform JavaScript run-time environment that executes...

How to Install NodeBB Forum on Fedora 29

NodeBB is a Node.js based forum software built for the modern web. It's built on either a MongoDB...

How to Install NodeBB Forum on Ubuntu 18.04 LTS?

NodeBB is a Node.js based forum software built for the modern web. It's built on either a MongoDB...

How to Install October CMS platform on Debian 9

October CMS is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework....

How to Install Pagekit CMS on Debian 9?

Pagekit is modern, intuitive, modular, and flexible open source (MIT license) CMS built with...

How to Install Pssh Tool to Execute Commands on Multiple Linux Servers?

These tools are good for System Administrators who find themselves working with large collections...

How to Install Redmine Project Management Tool on Ubuntu 18.04 LTS

Redmine is a free, open source and web-based project management web application that allows...

How to Install a LAMP Stack on Arch Linux

A LAMP (Linux, Apache, MySQL, PHP) stack is a common web stack used to prepare servers for...

How to Install and Set Up a 3-Node Hadoop Cluster?

Before configuring the master and slave nodes, it’s important to understand the different...

How to Install and Use ‘yum-utils’ to Maintain Yum and Boost its Performance?

Yum-utils, a collection of utilities that integrate with yum to extend its native features in...

How to Install vTiger CRM on Ubuntu 18.04 LTS?

vTiger CRM is a free and open source Customer Relationship Management software for your business....

How to Keep ‘sudo’ Password Timeout Session Longer in Linux?

To set the sudo password timeout value, use the passwd_timeout parameter. First, open the...

How to Make a Minecraft Server on Linux?

Setting Up a Minecraft Server on Ubuntu Firstly, we’ll create a Minecraft server using a VPS...

How to Make a Minecraft Server on Mac?

Step 1 – Installing Java and Screen Java is included by default if you’re using a newer MacOS...

How to Optimize and Compress JPEG or PNG Images in Linux Commandline?

You have a lot of images, and want to optimize and compress the images without losing its...

How to Recover a Deleted File in Linux

You had mistakenly deleted a file – either through the Del key, or using rm in the command line....

How to Repair and Defragment Linux System Partitions and Directories?

The Linux ext2, ext3 and ext4 filesystems don’t need that much attention, but with time, after...

How to Restore Deleted /tmp Directory in Linux?

The /tmp directory contains mostly files that are required temporarily, it is used by different...

How to Restrict SFTP Users to Home Directories Using chroot Jail?

The simplest way to do this, is to create a chrooted jail environment for SFTP access. This...

How to Run MySQL/MariaDB Queries Directly from the Linux Command Line?

If you are in charge of managing a database server, from time to time you may need to run a query...

How to Run or Repeat a Linux Command Every X Seconds Forever?

A system administrator often needs to run a command repeatedly in a certain period of time. Often...

How to Run ‘sudo’ Command Without Entering a Password in Linux?

In the sudeors file, the authenticate parameter which is turned on by default is used for...

How to Schedule Jobs Using Anacron on Linux?

To schedule a task on given or later time, you can use the ‘at’ or ‘batch’ commands and to set up...

How to Set Limits on User Running Processes in Linux?

To set up user limits, we will need to edit the following file: /etc/security/limits.conf...

How to Set Static IP Address and Configure Network in Linux?

IP address: 15.84.25.84          Netmask: 255.255.255.0         Hostname: server.rootadminz.com...

How to Set and Unset Local, User and System Wide Environment Variables in Linux?

Environment Variables are some special variables that are defined in the shell and are needed by...

How to Set max hourly email limit per account in cPanel

What does the limiter option do? The limiter option is used to limit a user from sending mails...

How to Set or Change System Hostname in Linux?

Device or system hostnames are used to easily recognize a machine within a network in a...

How to Setup Private Docker Registry on Ubuntu 18.04 LTS?

Docker Registry or 'Registry' is an open source and highly scalable server-side application that...

How to Setup Railgun Listener on CentOS 6/7 Web Server

Railgun is a WAN optimization technology developed by Cloudflare and is available to Cloudflare...

How to Setup git Repository using GitHub?

Requirements   – git installed on your PC or Server. Get here   – Internet Connection...

How to Some useful switches for “du – disk usage”

As we know, du command is used to check the disk usage of files and folders under Linux system....

How to Sort Output of ‘ls’ Command By Last Modified Date and Time?

As we may already know, ls and dir are the two commands available on Linux for listing directory...

How to Split Large ‘tar’ Archive into Multiple Files of Certain Size?

The creation of archive files and splitting them into blocks of a selected size. We shall use...

How to Start Linux Command in Background and Detach Process in Terminal?

When a process is associated with a terminal, two problems might occur: your controlling...

How to Start/Stop and Enable/Disable FirewallD and Iptables Firewall in Linux?

Firewall is a software that acts as a shield between the user’s system and external network...

How to Sync Files/Directories Using Rsync with Non-standard SSH Port?

As you might know, rsync, also known as Remote Sync, is a fast, versatile, and powerful tool that...

How to Test Your Internet Speed Bidirectionally from Command Line Using ‘Speedtest-CLI’ Tool?

We always need to check the speed of the Internet connection at home and office. What we do for...

How to Transfer Files Between Two Computers using nc and pv Commands?

nc stands for Netcat and often point out as “Swiss Army knife” is a networking tool used for...

How to Update cPanel License Key / Run License Script?

To run the cPanel License Key update script (refresh cpanel license) : #...

How to Use New Advanced Package Tool (APT) in Ubuntu/Debian?

Different Linux distributions install applications in a pre-compiled package that contain binary...

How to Use Rsync to Sync New or Changed/Modified Files in Linux?

Linux Rsync tool, which enables users to expeditiously copy or synchronize files locally and...

How to Use ‘at’ Command to Schedule a Task on Given or Later Time in Linux?

As an alternative to cron job scheduler, the at command allows you to schedule a command to run...

How to Use ‘cat’ and ‘tac’ Commands with Examples in Linux?

Cat command, the acronym for Concatenate, is one of the most used commands in *nix systems. The...

How to Use ‘find’ Command to Search for Multiple Filenames (Extensions) in Linux?

One of the many utilities for locating files on a Linux file system is the find utility and in...

How to activate inode usage displaying in cPanel

  cPanel only   LVE Manager inodes Limits extension allows you to set inodes limits for your...

How to add a package in WHM?

How do I add, edit and delete packages in WHM? The following article explains how to add, edit...

How to add own comments to PHP versions in PHP-Selector

CloudLinux provides an opportunity to add custom comments to PHP versions, chosen with...

How to add xvfb, wkhtmltopdf to the CageFS?

Steps:1. Need to create /etc/cagefs/conf.d/xvfb.cfg and add:...

How to allow ports in firewalld on CentOS8?

CentOS comes with firewalld by default. It allows you to manage your firewall rules based on...

How to clear eximstatus database entries

 what is eximstats database? Eximstats parses the exim log to produce text and graphical data,...

How to configure Roundcube in Webuzo panel?

Introduction Roundcube is web based IMAP email client which is written in PHP and can be...

How to configure custom name servers

If you have a reseller, you can set up and use custom name servers. For example, if your domain...

How to create a Filter to Whitelist Sender in Gmail?

Follow below steps to create a filter:   1. Login to your Gmail Account.   2. Tap on the...

How to create a host’s Inventory using Ansible?

In this guide, we can see how to create a host inventory using “ansible-cmd” command. If we...

How to customize an "Error Pages"?

Common errors and their names: Client Request Errors  400 Bad Request 401...

How to enable 2FA on your SSD Nodes dashboard?

2FA is a reliable method of increasing the security of your account by enforcing two methods of...

How to enable Remi Repository to install latest LAMP Stack?

Remi, a third-party repository that includes up-to-date versions of Apache, MySQL / MariaDB, PHP,...

How to enable gzip compression on Nginx server?

On fresh installation of Nginx, let's check whether the gzip has been enabled? $curl -H...

How to find the disk space allocated in Linux (CentOS /Red Hat .. . )

If the home directory, say /home, is a filesystem (mount point), then you could use df. If it's...

How to find top 15 Processes by Memory Usage with ‘top’ in Batch Mode?

To display the top 15 processes sorted by memory use in descending order, do: # top -b -o +%MEM...

How to fix "Error Establishing a Database Connection" in WordPress?

Have you ever run into a blank white screen web page with an easy, vigorous message: "Error...

How to fix "MySQL fails (username not known)"?

MySQL has limited usernames to 16 characters for many years. In versions of MySQL prior to 5.1,...

How to fix MySQL high CPU usage?

MySQL is pretty popular among open source web apps, but it is prone to performance issues if not...

How to fix cPanel mailing list archiving functionality when link traversal protection is enabled

   If link traversal protection is enabled on cPanel server, the mailman archiving feature stops...

How to fix file manager upload error in CWP?

  Upon uploading a more significant file in CWP using the file manager, you may struggle with a...

How to fix if "FTP does not work"?

First, determine till where the FTP client is working; if you are able to login with FTP but do...

How to fix the problem with PHP WordPress memory?

In the WordPress, this increment of memory is not reflected and causing the web to run slow. Let...

How to fix zPanel blank-screen error?

Sometimes the zPanel homepage or some specific pages will show a blank page (white screen). Since...

How to generate SSH keys in Linux?

Procedure:   Create a new key pair under Linux you can use ssh-keygen: ssh-keygen -t rsa -b...

How to grant user access to a database in MySQL command line?

In order to grant access to a user over an existing database on your MySQL server, start the...

How to improving the security of your WordPress?

WordPress is free, it has open source code and is one of the most used on the Internet and...

How to install SEO Panel on Ubuntu 18.04 LTS?

Seo Panel is a free and open source SEO control panel application that can be used for managing...

How to install Softaculous on cPanel server

  The PHP extension IonCubeLoader must be enabled on your server for the Softaculous...

How to install WordPress with Caddy web server on Debian 9 (Stretch)?

Caddy, sometimes clarified as the Caddy web server, is an open source, a HTTP/2-enabled web...

How to list modules loaded or enabled in PHP from command line?

there’s a command to list all the modules loaded by PHP. Some of the modules would have come with...

How to manually update mod_hostinglimits on cPanel

How to update mod_hostingrelease manually on cPanel servers. Check current version:...

How to migrate from CentOS to Oracle Linux?

CentOS is a Linux distribution that provides a free, community-supported computing platform...

How to monitor Disk health with smartd (S.M.A.R.T.)?

smartd is a daemon (a helper program) that monitors the health of physical hard disk drives that...

How to move a WordPress Installation to a different location?

Let see how to move the files to another folder by using the cPanel File Manager:1. First, go to...

How to mysql database auto repair a table using command

How to  Optimize Tables using Mysqlcheck The following optimizes employee table that is located...

How to optimize and speed up your server by more than 20%?

Here are some steps that we’ve seen to have the most impact: 1. Enable caching Caching is...

How to partition a hard drive using “parted” command?

Parted is a command which helps you to modify hard-disk partitions. More than a command, it’s a...

How to redirect a website using HTTP to HTTPS using an .htaccess file

The below code when added to an .htaccess file will automatically redirect any traffic destined...

How to reload OS of your Server using IPMI?

Step 1: Login to your IPMI interface by using https://[ip-address] in any browser. Step 2: After...

How to reset Windows update in Windows 10?

Windows Update keeps Windows 10 updated by downloading and installing the latest updates,...

How to reset the password of your VPS through virtualizor?

The following steps are performed:1. Login into KVM. [master server ip:4083] 2. Goto List...

How to resize volumes with LVM

Quick tips: To see the details of logical volume group use: vgdisplay To see the details of...

How to run Redmine with Ruby-Selector

1. In cPanel (as a user) create MySQL database, create MySQL user and Add user to Database...

How to set up SSH keys for authentication?

SSH keypairs are a combination of a public key that you set on your remote machines and a private...

How to set up Virtual Hosts on Windows, Linux, and MacOS?

Windows   1. Open Notepad or any other Text editor of your choice from Start Menu with...

How to setup CNAME for root Domain in Cloudflare Account?
How to setup CNAME for root Domain in Cloudflare Account?

Let us see how to add CNAME for root domains, i.e. yourdomain.com if your domain registrar does...

How to speed up “Yum” using Axelget

Login with root permission, otherwise, you may start commands with “sudo”. Install Yum-Axelget...

How to start and stop services manually with Windows 10?

On Windows 10, services run in the background without a user interface and permit system features...

How to switch from centova trial license?

To change Centova trial license /add new Centova license key please follow the steps below:...

How to test disk speed (Read/Write): HDD, SSD performance in Linux?

From this tutorial, we will check how to measure the input/output performance of a HDD, SSD, USB...

How to unblock your IP address from WHMCS

  1: Log into the cPanel for your WHMCS installation (Assuming it’s a cPanel server).   2:...

How to upload a file using File Manager in cPanel

Sometimes it's necessary to upload files to your cPanel account. This can be easily accomplished...

How to use Traceroute?

Traceroute is an application that traces the path data takes from one computer to another....

How to verify VPS provided is on SSD drive or not?

If your VPS is on SSD drive or a normal SATA drive. Also, it will help you comparing the disk...

How to “SED” Options and its usage

Sed – The Stream Editor A stream editor is used to perform basic text transformations on an...

Install Ansible using Python installation manager pip

pip can be called as preferred installer program. pip is package management used to install...

Install Htop 2.0 – Linux Process Monitoring for RHEL, CentOS & Fedora

Htop is an interactive real-time process monitoring application for Linux/Unix like systems and...

Install and configure Ansible Automation IT Tool

Ansible IT automation tool can be used for configuration management and much more IT needs. It...

Install, Configure, and Run Spark on Top of a Hadoop YARN Cluster

1. Should have a hadoop user that can access all cluster nodes with SSH keys without a password....

Installing Nginx, MySQL, PHP (LEMP) on Ubuntu 16.04

A virtual private server (VPS) is most often used to host dynamic websites and applications. This...

Kubernetes Ingress Controller

Kubernetes is an open-source container-orchestration system for automating computer application...

Learn How to Generate and Verify Files with MD5 Checksum in Linux

MD5 Sums are 128-bit character strings (numerals and letters) resulting from running the MD5...

Learn How to Set Your $PATH Variables Permanently in Linux

In Linux (also UNIX) $PATH is environment variable, used to tell the shell where to look for...

Learn How to Use ‘fuser’ Command with Examples in Linux

One of the most important task in Linux systems administration, is process management. Its...

Let Sudo Insult You When You Enter Incorrect Password

Sudoers is the default sudo security policy plugin in Linux, however, experienced system...

Linux “hostname” Command Examples

The general syntax of the “hostname” command in Linux is as below: $ hostname [parameter]...

Managing Groups and User creation using Ansible

We have hundreds of Linux servers and requirement came in our email stating” Babin create below...

MySQL Database Import methods and some common Issues

Different ways are there to import MySQL database’s contents. The two most common methods:1)...

Permanent redirect to https by using .htaccess

The following code will help you in redirecting your website to https://www.domainname.com....

Progress – A Tiny Tool to Monitor Progress for (cp, mv, dd, tar, etc.) Commands in Linux

Progress, formerly known as Coreutils Viewer, is a light C command that searches for coreutils...

Pscp – Transfer/Copy Files to Multiple Linux Servers Using Single Shell

Pscp utility allows you to transfer/copy files to multiple remote Linux servers using the single...

Repair,check,optimize all databases in One command

Check,Optime and auto Repair MySQL Tables Using MysqlcheckDue to errors or bugs in the MySQL...

Set Date and Time for Each Command You Execute in Bash History

By default, all commands executed by Bash on the command line are stored in history buffer or...

The Linux “ps” Command Examples

The "ps" command in Linux is an abbreviation of "process status". It is used to get information...

Translate rwx Permissions into Octal Format in Linux

To display the access rights of files or directories in octal form instead of rwx or perhaps you...

Trash-cli – A Trashcan Tool to Manage ‘Trash’ from Linux Command Line

Trash-cli is a command line interface that trashes files and records the original absolute path,...

Understanding Different Classifications of Shell Commands and Their Usage in Linux

When it comes to gaining absolute control over your Linux system, then nothing comes close to the...

Understanding Linux CPU Load
Useful ‘host’ Command Examples for Querying DNS Lookups

Host command is a minimal and easy-to-use CLI utility for performing DNS lookups which translate...

What is .htaccess?

.htaccess (come from hypertext and access) is a configuration file, used by the web server...

What’s Difference Between Grep, Egrep and Fgrep in Linux?

One of the renowned search tool on Unix-like systems which can be used to search for anything...

fswatch – Monitors Files and Directory Changes or Modifications in Linux

fswatch is a cross-platform, file change monitor that gets notification alerts when the contents...

ifconfig vs ip: Difference and Comparing Network Configuration

Linux based distributions have featured set of commands which provide a way to configure...

tuptime – Shows Historical and Statistical Running Time of Linux Systems

tuptime is a tool used for reporting the historical and statistical running time (uptime) of a...

vlock – A Smart Way to Lock User Virtual Console or Terminal in Linux

Virtual consoles are very important features of Linux, and they provide a system user a shell...

How to Configure PayPal in WHMCS

Part 1: Initial Setup in WHMCS    Begin by going to Setup > Payment Gateways in WHMCS....

How to solve cPanel’s addon domain error “Domain already exists, it was not added”

In cPanel, Go to your Subdomains panel. Find one that looks like the domain you’ve just...

How do I connect Windows VPS using Remote Desktop

Windows OS:Click Start -> All Programs -> Accessories -> Remote Desktop Connection. -...

How to Install Zpanel on Centos

zPanel is the most preferably choice for cPanel alternative. It is free, light and smoothly...