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.
What root and administrator access mean on your server
Understand full root access on Linux and Administrator access on Windows, what you can change with them, the responsibilities that come with that control, and safe habits to adopt.
Fix "Cannot modify header information - headers already sent"
Fix the PHP warning 'headers already sent by output started at file:line': stray whitespace, BOM characters, echo before redirects, closing tags and plugin output.
Set up email forwarding, aliases and auto-replies in Plesk
Forward mail to another address, add email aliases, create a catch-all and set out-of-office auto-replies for mailboxes in Plesk Obsidian.
PCI and GPU passthrough on KVM with VFIO
Give a KVM virtual machine direct access to a GPU, NIC or NVMe drive with VFIO: enable IOMMU, check IOMMU groups, bind the device to vfio-pci and attach it with virsh or Proxmox.
Self-hosted website analytics: install Matomo with Softaculous
Run privacy-friendly analytics on your own hosting: install Matomo with Softaculous, add the tracking code, set up archiving via cron and configure privacy options.
Back Up and Restore MongoDB with mongodump and mongorestore
Create logical MongoDB backups with mongodump, restore them with mongorestore, and verify the data on your Linux VPS. Covers archives, gzip, single collections and cron.
Manage 301 redirects in WordPress
Redirect old WordPress URLs correctly: when to use 301 or 302, redirect plugins, .htaccess rules and cPanel Redirects, monitoring 404s and avoiding chains and loops.
Web server compression: Gzip vs Brotli vs Zstandard
How HTTP compression works, how Gzip, Brotli and Zstandard compare, which file types to compress, and how to enable and verify compression in Nginx, Apache and LiteSpeed.
How to set up a Python app in cPanel with CloudLinux Python Selector
Deploy a Flask or Django app on cPanel hosting with Setup Python App: choose the Python version, configure passenger_wsgi.py, install requirements and restart.
Put Remote Desktop behind a WireGuard VPN
Install WireGuard on your Windows server, connect your own computer as a client, then limit the RDP port 3389 rule to the VPN subnet so only VPN users can reach the login screen.
DNSSEC explained: how signed DNS works and how to enable it
How DNSSEC protects DNS answers with signatures, the chain of trust from the root, DNSKEY, RRSIG and DS records, enabling it safely, validating it and avoiding outages.
Troubleshoot WHMCS with System Health and logs
Use WHMCS System Health, the Activity, Module, Gateway, Email and Ticket Import logs, and safe debug settings to find out why something in WHMCS is not working.
Implementing a Web Application Firewall on Nginx with ModSecurity
Install the ModSecurity module on Nginx, load the OWASP Core Rule Set, run in detection mode first, then block SQL injection and XSS with tuned rules.
Set up VirtFusion backups and restore a VPS
Configure VirtFusion backup storage and backup plans, attach them to servers or packages, and restore a VPS from a backup when something goes wrong.
FTP vs SFTP vs FTPS explained: which file transfer method should you use?
The differences between plain FTP, FTPS and SFTP, which ports and logins each uses on cPanel hosting, how they compare to File Manager and Web Disk, and which is safest.
Debug "Segmentation fault (core dumped)" on a Linux server
Find out why a program crashes with Segmentation fault on Linux: read dmesg and journal entries, collect core dumps with coredumpctl, get a backtrace with gdb and fix common causes like bad PHP extensions.
Link or remove a card in PayPal and set your preferred payment method
Add a debit or credit card to PayPal, remove an old or expired card, and choose the preferred payment method PayPal uses for online purchases and automatic payments.
Choose and configure the nameserver service in WHM (PowerDNS or BIND)
Pick the right DNS service in WHM Nameserver Selection. Compare PowerDNS, BIND and disabled, decide when external DNS is better, switch safely and check zones still resolve.
Virtualizor resource limits: CPU, RAM, disk I/O and overselling
Protect VPS performance in Virtualizor: set CPU units and limits, network speed and I/O limits in plans, decide how far to oversell CPU and RAM, and watch for noisy neighbours.
Create email filters in cPanel (per account and global filters)
Use cPanel Email Filters and Global Email Filters to sort, forward, discard or bounce messages by subject, sender or spam score, and test each rule before saving.
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