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.
Fix SSH "Too many authentication failures" when connecting
Learn why SSH offers too many keys and gets rejected, and fix it with IdentitiesOnly, ssh-agent and a small SSH config entry.
DNS server software: BIND vs PowerDNS explained
Authoritative vs recursive DNS servers, how BIND and PowerDNS differ in storage, performance and features, what cPanel uses, and how to test a DNS server with dig.
Use Composer for PHP packages on cPanel hosting
Run Composer on cPanel shared hosting: check it is available, pick the right PHP version, install and update dependencies, handle memory errors and deploy without dev packages.
Fix common SSL errors in the browser
Understand and fix common browser SSL errors: name mismatch, expired or untrusted certificates, incomplete chains, protocol errors and HTTPS redirect loops.
Enable gzip compression in Apache with mod_deflate
Compress HTML, CSS, JavaScript and JSON in Apache with mod_deflate, add Brotli with mod_brotli for modern browsers and check the Content-Encoding header to prove it works.
KVM disk performance: cache modes, io modes and iothreads
Tune KVM virtual disk performance: compare cache=none, writeback and writethrough, io=native, threads and io_uring, add iothreads, enable discard, and measure results with fio.
Fix WordPress permalinks and 404 errors on posts
Fix WordPress posts and pages that return 404 while the home page works: re-save permalinks, restore the .htaccess rules and check rewrite conflicts in cPanel.
Keyboard shortcuts inside a Remote Desktop session
The Remote Desktop shortcuts that replace Windows keys inside a session, such as Ctrl+Alt+End and Alt+Page Up, plus the setting that decides where key combinations go.
Install and secure MongoDB on a Linux VPS
Install MongoDB Community from the official repository, enable authentication, create admin and app users, keep it off the public internet and back up with mongodump.
Use PHP OPcache on cPanel hosting with CloudLinux PHP Selector
What PHP OPcache does, how to check it is enabled in CloudLinux PHP Selector, sensible OPcache options for WordPress, and how to clear it after deploying code.
Linux Update Strategy: Testing Security Patches Before Production
Build a Linux update strategy that tests security patches on a staging server first, then promotes them to production with a canary rollout and a rollback path.
Host a Laravel application with Plesk Laravel Toolkit
Install the Laravel Toolkit in Plesk, deploy a Laravel app from Git, set the public document root and .env, run Composer, migrations, the scheduler and queues.
How to fix "SMTP authentication failed" email errors
Your email client says SMTP authentication failed or keeps asking for a password? Learn the correct cPanel mail settings and how to fix login, port and blocked IP problems.
QUIC.cloud CDN basics: set it up with LiteSpeed Cache for WordPress
What QUIC.cloud is, how its CDN and online services work with LiteSpeed Cache, how to link your domain and point DNS, and when you should or should not use it.
Allow sudo without a password (NOPASSWD) for one user or command
Let a deploy script or one trusted user run sudo without typing a password, using a NOPASSWD rule in /etc/sudoers.d, ideally limited to the exact commands needed.
Set up Ceph on a Proxmox cluster (hyper-converged storage)
Install Ceph from the Proxmox web UI: network planning, monitors and managers, OSDs on each node, a replicated pool for VM disks, and health checks.
Install WordPress on a LEMP stack (Nginx, MariaDB, PHP)
Build a LEMP stack on Ubuntu or Debian, create the database, configure wp-config.php and Nginx for PHP-FPM, then finish the WordPress installer over HTTPS.
ccTLDs explained: country code domains, rules and when to use them
What country code top-level domains (ccTLDs) are, how they differ from gTLDs, local presence rules, SEO geotargeting, popular repurposed ccTLDs like .io and .co, and how to choose one.
How to run and read an MTR report (packet loss and latency)
Run MTR or WinMTR, then read loss, latency and jitter per hop correctly so you can tell real network problems from harmless router behaviour.
Fix the WordPress login redirect loop
Fix WordPress sending you back to the login page after a correct password: cookies, site URL mismatches, HTTPS settings, caching, plugins and corrupt .htaccess rules.
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