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
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- CloudLinuxCloudLinux setup and use: LVE limits, CloudLinux Manager, CageFS and PHP/Node.js selectors.31 guides
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- Imunify360Malware scanning, firewall and proactive defence with Imunify360.24 guides
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- DatabasesMySQL, MariaDB, PostgreSQL, Redis and MongoDB on a VPS.80 guides
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- TroubleshootingWhen something is not working: checks and fixes.127 guides
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- 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
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.
cPanel
Restore files and folders from JetBackup 5 in cPanel
Restore deleted or broken website files from MdmHost's daily JetBackup 5 snapshots in cPanel: pick a date, choose files or folders, and restore or download them.
Explore all guides
A fresh mix every day. Pick a topic above to narrow it down.
Fix MySQL Charset and Collation Mismatches
Find where a MySQL charset or collation mismatch lives — server, database, table, column or connection — and fix it without corrupting your data.
SitePad site settings: name, favicon, analytics and custom code
Configure site-wide SitePad settings: site name and tagline, logo and favicon, analytics and verification snippets, custom CSS and header code, and social profiles.
How to fix Cloudflare Error 526: Invalid SSL certificate
Cloudflare Error 526 appears in Full (strict) mode when the origin certificate is expired, self-signed or issued for another name. Learn how to install a valid certificate.
Restore deleted emails and mailboxes from JetBackup 5
Bring back deleted email messages, folders or a whole mailbox from MdmHost's daily JetBackup 5 backups in cPanel, without overwriting newer mail.
How to make.htaccess rewrites work in OpenLiteSpeed
Fix.htaccess rewrites in OpenLiteSpeed - turn on rewrite and Auto Load from.htaccess, understand why edits need a restart and which directives are supported, and fix 404 errors on WordPress permalinks.
Fix "No space left on device" on Linux
Free disk space fast when Linux reports 'No space left on device': find what fills the disk, clear logs and caches safely, and fix inode exhaustion and deleted-but-open files.
Using ipset for high-performance IP blacklisting on Linux
Build a kernel-level IP blocklist with ipset and iptables, load thousands of addresses in seconds, and keep the set alive across reboots.
Email blacklists and sender reputation: how they work and how to recover
What email blacklists (DNSBLs) are, how IP and domain sender reputation is built, how to check if you are listed and the steps to get delisted and keep mail out of spam.
Install and configure CSF and LFD firewall on a cPanel/WHM server
Install ConfigServer Security & Firewall (CSF) with LFD on a WHM server, set the essential csf.conf options, take it out of testing mode and manage it from WHM.
Virtualizor VPS control panel: log in and find your way around
Log in to the Virtualizor end-user panel, understand the VPS dashboard, power buttons, resource graphs and settings, and know which tasks you can do yourself.
Which Windows version should you choose for your server?
Compare Windows Server 2019, 2022 and 2025 and desktop-style Windows editions on support lifecycle, app compatibility and typical uses, and pick the right one for your server.
Fix pip "externally-managed-environment" on Ubuntu and Debian
Understand why pip refuses to install packages system-wide on Ubuntu 23.04+ and Debian 12, and install Python packages the right way with venv, pipx or apt.
How to brand cPanel with your own logo and company name in WHM
Give your customers a white-label cPanel with your company name, logo, favicon, colours and help links using WHM Customization as a reseller.
Port forwarding and masquerading with firewalld
Forward a port to another local port or to a different host with firewalld, enable masquerading so replies find their way back, then test and make the rules permanent.
Troubleshoot a slow Windows VPS: CPU, RAM, disk and network
Find out why a Windows VPS is slow using Task Manager, Resource Monitor and PowerShell, then fix common causes like Windows Update, Defender scans and memory leaks.
Manage shell access for cPanel accounts in WHM: jailed vs normal (root guide)
Decide which cPanel users get SSH, choose between jailed shell, normal shell and CageFS, enable or disable shell per account in WHM, and keep shell access secure.
Linux Firewall: Using UFW to Block Specific Source IP Ranges Automatically
Block a source IP range in UFW with one command, then keep a blocklist file and a cron job that re-applies it so new ranges are dropped without manual work.
DMARC on cPanel: read reports and move from p=none to reject
Go beyond a basic DMARC record: receive and read aggregate reports, find who sends mail as your domain, and tighten the policy step by step from none to quarantine and reject.
Apache mod_rewrite in depth: RewriteRule, RewriteCond and flags
Understand how mod_rewrite really processes rules: pattern matching, back-references, RewriteCond variables, the L, R, NC, QSA and END flags, and the differences between vhost and .htaccess context.
Block IP addresses and stop image hotlinking in cPanel
Use cPanel IP Blocker to deny abusive visitors or whole ranges, and Hotlink Protection to stop other websites from embedding your images and using your bandwidth.
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