cPanel
How to log in to cPanel (MdmHost dashboard, URL and port 2083)
All the ways to open your cPanel account: one click from the MdmHost dashboard, the direct cPanel URL on port 2083, and what to do when the login fails.
MdmHost guides
Step-by-step help for your hosting
1,794 practical guides for cPanel, Plesk and DirectAdmin, Linux and Windows servers, websites, databases, DNS and security, from your first login to troubleshooting.
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- Getting startedYour first hour with a new server: access, logins and basics.83 guides
- cPanelFiles, databases, email, domains and every cPanel tool, step by step.67 guides
- WHM & resellingWHM, packages, reseller accounts, WHMReseller and running a hosting brand.53 guides
- WordPressInstall, secure, speed up, migrate and fix WordPress sites.49 guides
- Email & webmailMailboxes, webmail, forwarders, spam filters and email delivery.67 guides
- DomainsRegistering, transferring and managing domains and nameservers.27 guides
- SSL certificatesFree AutoSSL, Let's Encrypt, paid certificates and HTTPS.41 guides
- CloudLinuxCloudLinux setup and use: LVE limits, CloudLinux Manager, CageFS and PHP/Node.js selectors.31 guides
- LiteSpeedLiteSpeed Web Server, LSCache and the LiteSpeed Cache plugin: install, settings and tuning.35 guides
- Imunify360Malware scanning, firewall and proactive defence with Imunify360.24 guides
- SoftaculousInstall, update, clone and back up apps with Softaculous.24 guides
- WP SquaredcPanel's WordPress platform: sites, plugins, staging and backups.9 guides
- SitePadBuild and publish websites with the SitePad builder.9 guides
- SitejetDesign, edit and publish sites with the Sitejet builder.9 guides
- WHMResellerAlpha and master resellers with WHMReseller: install, setup and use.12 guides
- VirtFusionInstall, set up and manage VirtFusion: hypervisors, packages, servers and WHMCS integration.28 guides
- VirtualizorManage your VPS with Virtualizor: power, OS reinstall, VNC, IPs and backups.44 guides
- PleskWebsites, email, databases and settings in the Plesk panel.53 guides
- DirectAdminUsers, domains, email and reseller tools in DirectAdmin.41 guides
- WHMCSBilling, automation, products and client management with WHMCS.52 guides
- Control panelscPanel & WHM, Plesk, DirectAdmin and other panels on your VPS.107 guides
- SecurityKeys, passwords, firewalls and keeping a server patched.138 guides
- Networking & DNSIP addresses, reverse DNS, ports and traffic.72 guides
- Websites & appsWeb servers, WordPress, PHP, Node.js, SSL and app hosting.83 guides
- DatabasesMySQL, MariaDB, PostgreSQL, Redis and MongoDB on a VPS.80 guides
- Billing & accountInvoices, renewals, the client area and your account.9 guides
- TroubleshootingWhen something is not working: checks and fixes.127 guides
- Linux VPSSSH, packages, services and everyday Linux administration.265 guides
- Windows VPS & RDPRemote Desktop, Windows Server settings and Admin RDP tips.73 guides
- Docker & DevOpsContainers, Git deploys, automation, monitoring and backups.82 guides
Popular guides
Windows VPS & RDP
Keep apps running 24/7 on your RDP
Disconnect instead of signing out, check session time limits and power settings, and make programs start again after a restart.
Windows VPS & RDP
Connect to your Admin RDP from Windows, Mac and phone
Find your login details, then connect to your Admin RDP or Windows VPS with the free Remote Desktop clients for Windows, macOS, iPhone and Android.
Troubleshooting
Fix "Remote Desktop can't connect to the remote computer"
Check the server is running, test the RDP port, rule out network blocks and repair Remote Desktop settings from the browser console.
Getting started
First steps after your Linux VPS is ready (SSH, updates, firewall)
Log in over SSH, change the root password, install updates, add a sudo user and switch on a firewall without locking yourself out.
Getting started
Set up a private remote work desktop on Admin RDP
Secure your Admin RDP, install everyday apps, personalise it, and learn when to disconnect versus sign out so your work keeps running.
Explore all guides
A fresh mix every day. Pick a topic above to narrow it down.
Does web hosting affect SEO? Speed, uptime, location and IPs explained
How your web hosting affects SEO: server speed, uptime and crawl errors, server location, HTTPS, shared IP myths and what to check so your host never holds your rankings back.
Tune LFD login failure blocking and email alerts in CSF
Adjust LFD triggers, block durations, permanent blocks and alert emails so CSF stops brute-force attacks without flooding your inbox or blocking genuine users.
Configure firewall rules for a Virtualizor VPS
Protect your VPS with firewall rules: use Virtualizor's firewall where your provider enables it, or configure UFW or firewalld inside the VPS without locking yourself out.
What LTS means and why it matters for servers
Learn what long-term support releases are, what end-of-life means for a server, and why production servers usually run LTS versions of Ubuntu and similar distros.
CPU steal time on a VPS: what it means and what to do
Learn what CPU steal time (%st) is on a virtual server, how to measure it with top, vmstat and sar, what values are normal, and how to tell host contention from your own load.
How to manage DNS zones and records in WHM
Add, edit and delete A, CNAME, MX and TXT records for your customers' domains with WHM Zone Manager, and reset a broken zone back to its defaults.
Port open in the firewall but still unreachable: how to fix it
You allowed a port in the firewall but connections still fail. Work through each layer, from the listening address to the server and client networks, to find the real block.
AlmaLinux vs Rocky Linux vs Ubuntu Server: which server OS?
Compare AlmaLinux, Rocky Linux, Ubuntu Server and Debian for servers: support lifecycles, package managers, control panel support, security tooling and which to pick.
Add a KVM hypervisor to VirtFusion and install the agent
Prepare a dedicated server as a VirtFusion hypervisor: hardware checks, network bridge and storage planning, adding it in the admin area, installing the agent and testing a VPS.
Linux Security: Hardening the sudoers File for Least Privilege
Restrict sudo to the exact commands each administrator needs. Write safe sudoers drop-in files, validate them with visudo and keep an audit trail of privileged commands.
Connect Microsoft 365 email to a domain hosted on cPanel
Add the DNS records Microsoft 365 needs in cPanel Zone Editor: verification TXT, MX, autodiscover CNAME, SPF and DKIM, while keeping your website on MdmHost.
Apache modules: list, enable and disable them safely
How Apache's modular design works, the modules a modern server needs, how to enable or disable them on Debian/Ubuntu and AlmaLinux, and how trimming modules saves memory.
Enable or disable ModSecurity for a domain in cPanel
Learn what ModSecurity blocks, how to switch it off for one domain to test a false positive, and why you should turn it back on and fix the cause instead.
Push images to Docker Hub or GitHub Container Registry
Publish your own Docker images to Docker Hub or GitHub Container Registry. Log in with access tokens, tag images properly, keep them private and pull them on your VPS.
Create a Linux server lab VM in VirtualBox
Install VirtualBox on Windows, macOS or Linux, create an Ubuntu Server VM, choose NAT or bridged networking, set up port forwarding for SSH, and use snapshots to practise safely.
Turn on automatic security updates (unattended-upgrades and dnf-automatic)
Keep your server patched without remembering to log in: set up unattended-upgrades or dnf-automatic, test it, and choose how kernel reboots happen.
VirtFusion security hardening for control servers and hypervisors
Harden a VirtFusion deployment: lock down SSH, firewall the control server and hypervisors, enforce admin 2FA, protect API tokens, keep systems patched and watch logs.
Fix common Node.js errors: EADDRINUSE, 503, out of memory, module not found
Fix the Node.js errors hosting customers see most: port already in use (EADDRINUSE), 503 on cPanel, JavaScript heap out of memory and Cannot find module.
Add IP pools and OS templates in the Virtualizor admin panel
As a Virtualizor admin, create IPv4 and IPv6 pools with gateway and netmask, set nameservers, download OS templates and ISOs so new VPS get working networks and images.
Run a private Docker registry on your VPS
Host your own private Docker registry with the official registry image. Add TLS through a reverse proxy and basic auth, push and pull images, run garbage collection and size the storage.
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Ask MdmHost AI for a quick answer, or open a ticket and our team will take a look. We are here 24/7.