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Focused, task-driven articles covering a single action or process.

How to create and manage symbolic links in Linux

Run ln -s /path/to/target /path/to/link to create a symbolic link in Linux. Running ls -l shows each link with an arrow pointing to its target. Linux cannot edit a link's target, so remove the link with rm and create it again. Leave off any trailing slash…

How to install Node.js on Linux

Run sudo apt install -y nodejs npm to install the Node.js version in your distribution's repositories. For current releases, add the NodeSource repository and install the nodejs package, which includes npm. Node Version Manager (NVM) installs versions in your…

How to check open ports on Linux

Run ss -tuln to list every port that is listening for network connections. The older netstat -tuln gives the same view but needs the net-tools package on newer systems. Running sudo lsof -i -P -n with grep LISTEN shows which process owns each open port. The…

How to build a headless CMS with Strapi and Astro

Run Strapi and a PostgreSQL database as Docker containers on the VPS from one docker-compose.yml file, started with docker-compose up -d. In the Strapi admin on port 1337, create an Article collection type and give the Public role find and findOne…

How to build a CA bundle for GeoTrust and RapidSSL certificates

A certificate authority (CA) bundle for GeoTrust or RapidSSL is the DigiCert intermediate certificate followed by the DigiCert G5 root, in one plain text file. Download both from DigiCert in the version matching your algorithm: RSA, or elliptic curve (ECC).…

How to deactivate WordPress plugins in cPanel

In cPanel, open WordPress Management in the Domains section and click Plugins in the WordPress Toolkit navigation bar. Tick the plugins you want to turn off and click Deactivate above the list. Deactivated plugins then show an Inactive status. WordPress…

How to migrate your website to a reseller account

Create a database and user in the client's cPanel under MySQL Databases, then import the old site's phpMyAdmin export into it. Download the site files over File Transfer Protocol (FTP), update the database details in the configuration file and upload…

How to set up an out of office reply in Roundcube

Open Roundcube from cPanel by clicking Check Email next to the account under Email Accounts. In Roundcube, go to Autoresponders, click Add Autoresponder, and write the subject and body of your reply. Start and Stop dates switch the out of office reply on and…

How to install WHMCS with Softaculous

Log in to cPanel, open Softaculous Apps Installer in the Software section, search for WHMCS and click Install, keeping the default install mode. Paste your WHMCS licence key and set an admin username, password and email before clicking Install. A subdirectory…

How to create a temporary domain

On the SkipDNS website, choose Regular or Multi-site from the Preview dropdown and paste your server's IP address into the IP field. The server IP address appears under Shared IP Address in cPanel's General Information panel. Enter your addon domain in the…