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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- TroubleshootingWhen something is not working: checks and fixes.127 guides
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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.
One SPF record for several mail services (and the 10-lookup limit)
Combine cPanel, Google Workspace, Microsoft 365, newsletter and CRM senders into a single valid SPF record, stay under the 10 DNS lookup limit and avoid common SPF errors.
Self-host n8n workflow automation with Docker
Run n8n on your own Linux VPS with Docker Compose and PostgreSQL, then publish the editor over HTTPS behind a reverse proxy.
CAA DNS records: control which CAs can issue your SSL
Understand CAA DNS records, check whether one blocks AutoSSL or your paid CA, and add correct CAA records in the cPanel Zone Editor without breaking renewals.
Fix Mac keyboard shortcuts in Remote Desktop
Make Command, Control and Option behave the way you expect in Windows App on a Mac, and sort out copy and paste, special characters, Fn keys and keyboard layouts.
Build reproducible VM images with Packer
Use Packer to build VM templates automatically: write an HCL template, pick a builder (QEMU, Proxmox or a cloud), provision with shell or Ansible, and produce versioned golden images in CI.
Email forwarders, autoresponders and spam filters in DirectAdmin
Set up email forwarders, catch-all handling, autoresponders and vacation messages, and configure SpamAssassin and email filters in DirectAdmin.
Vim basics: edit, save and quit files on a server
Learn just enough Vim to edit a config file on any Linux server, including modes, inserting text, saving, quitting without saving, moving around, deleting, undoing and searching.
Set up the Proxmox VE firewall for the host and VMs
Enable the built-in Proxmox firewall safely: allow the web UI and SSH first, then add datacenter, node and per-VM rules, security groups and IP sets.
Brand Plesk with your logo, custom buttons and a white-label look
Customise Plesk for your customers: upload a logo and favicon, set the panel title, add custom buttons linking to your support or billing, hide extensions and set the default view.
HestiaCP CLI: automate tasks with v-add and v-delete commands
Use the HestiaCP CLI to create and remove users, domains and databases from the shell. Covers v-add-user, v-add-domain, v-add-database and their v-delete counterparts.
Install Node.js and npm on a Linux VPS (nvm or NodeSource)
Install a current LTS version of Node.js and npm on Ubuntu, Debian, AlmaLinux or Rocky Linux using nvm or the NodeSource repository, and verify it works.
How to fix a 502 Bad Gateway error
A 502 Bad Gateway error means one server got an invalid reply from another behind it. Learn what causes 502 errors on hosting, CDNs and VPS servers, and how to fix them.
What is Softaculous? Features, supported apps and how to open it in cPanel
An overview of Softaculous, the one-click app installer in cPanel: what it installs, how to open it, and what it can do for updates, backups, clones and staging.
Rate-limit SSH and other ports with ufw limit
Use ufw limit to slow down SSH brute-force attempts. Learn how the 6-connections-in-30-seconds rule works, apply it to a custom SSH port, pair it with Fail2ban and test it.
GPU servers for AI explained: cloud GPUs, passthrough and vGPU
How GPU servers are offered for AI and rendering: dedicated GPU machines, GPU VMs with passthrough, shared vGPU and MIG, what specs matter (VRAM, interconnect) and how to choose.
How to edit or delete a hosting package in WHM
Update the disk, bandwidth and feature settings of an existing WHM package so they apply to every account using it, or delete packages you no longer sell.
Fix "Your credentials did not work" in Remote Desktop
Fix rejected RDP logins: username format, the right password, stale saved credentials, account lockout and Remote Desktop permissions.
virsh commands cheat sheet for managing KVM virtual machines
The virsh commands you need day to day on a KVM host: list, start, stop and autostart VMs, edit XML, attach disks and NICs, change CPU and RAM, consoles, networks and storage pools.
Event Viewer basics on Windows Server
Use Event Viewer on your Windows Server VPS to find errors, unexpected reboots, failed RDP logins and crashing apps, with filters, custom views and useful event IDs.
Self-host Nextcloud with Docker Compose, MariaDB and Redis
Run Nextcloud, MariaDB and Redis as containers on one Linux VPS. Build the compose file, set trusted domains and verify the stack end to end.
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