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MdmHost guides
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1,231 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.69 guides
- cPanelFiles, databases, email, domains and every cPanel tool, step by step.37 guides
- WHM & resellingWHM, packages, reseller accounts, WHMReseller and running a hosting brand.49 guides
- WordPressInstall, secure, speed up, migrate and fix WordPress sites.40 guides
- Email & webmailMailboxes, webmail, forwarders, spam filters and email delivery.37 guides
- DomainsRegistering, transferring and managing domains and nameservers.20 guides
- SSL certificatesFree AutoSSL, Let's Encrypt, paid certificates and HTTPS.19 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.30 guides
- Imunify360Malware scanning, firewall and proactive defence with Imunify360.23 guides
- SoftaculousInstall, update, clone and back up apps with Softaculous.23 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.7 guides
- VirtualizorManage your VPS with Virtualizor: power, OS reinstall, VNC, IPs and backups.30 guides
- PleskWebsites, email, databases and settings in the Plesk panel.52 guides
- DirectAdminUsers, domains, email and reseller tools in DirectAdmin.40 guides
- WHMCSBilling, automation, products and client management with WHMCS.51 guides
- Control panelscPanel & WHM, Plesk, DirectAdmin and other panels on your VPS.106 guides
- SecurityKeys, passwords, firewalls and keeping a server patched.115 guides
- Networking & DNSIP addresses, reverse DNS, ports and traffic.34 guides
- Websites & appsWeb servers, WordPress, PHP, Node.js, SSL and app hosting.52 guides
- DatabasesMySQL, MariaDB, PostgreSQL, Redis and MongoDB on a VPS.64 guides
- Billing & accountInvoices, renewals, the client area and your account.9 guides
- TroubleshootingWhen something is not working: checks and fixes.68 guides
- Linux VPSSSH, packages, services and everyday Linux administration.70 guides
- Windows VPS & RDPRemote Desktop, Windows Server settings and Admin RDP tips.58 guides
- Docker & DevOpsContainers, Git deploys, automation, monitoring and backups.58 guides
Popular guides
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.
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.
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 "503 Service Unavailable" on LiteSpeed hosting
Find and fix 503 Service Unavailable errors on LiteSpeed cPanel hosting: PHP processes failing to start, resource limits, crashed PHP extensions, and timeouts in long scripts.
How to clean infected files with Imunify360
Clean malware from infected files with Imunify360 in cPanel, restore a file from its pre-cleanup backup if something breaks, and handle files that cannot be cleaned.
How to set up AutoSSL in cPanel & WHM
Turn on AutoSSL in WHM, pick the certificate provider, run it for all users, read the logs and make sure free certificates keep renewing on their own.
WordPress security hardening checklist
Harden a WordPress site on cPanel hosting: strong logins and 2FA, updates, file permissions, disabling file editing, limiting login attempts and safe backups.
How to find and read Apache access and error logs
Find Apache's access and error logs on Ubuntu, Debian, AlmaLinux and Rocky Linux, set up per-site logs, and pull out errors and top visitors with a few shell commands.
Host a React, Vue or Angular single-page app on cPanel (fix 404 on refresh)
Deploy a built React, Vue, Angular or Vite single-page app to cPanel hosting and add the .htaccess fallback so deep links and page refreshes do not return 404.
Import a Large MySQL SQL File Without Timeouts
Import a large MySQL dump from the command line without phpMyAdmin timeouts. Raise packet limits, split oversized files and verify the result.
Make a Sitejet website look great on mobile
Optimise a Sitejet site for phones and tablets: use the device previews, adjust text sizes and spacing, reorder or hide elements per device and test on real phones.
Restore a MySQL database from JetBackup 5 in cPanel
Roll a WordPress or shop database back to an earlier day with JetBackup 5 in cPanel, download a database dump, and restore files and database together safely.
Rate limit requests in Nginx with limit_req
Slow down brute-force logins, scrapers and API abuse with Nginx limit_req and limit_conn, using burst and nodelay so real visitors are not affected.
Troubleshooting MySQL deadlocks and transaction failures
Diagnose MySQL deadlocks and transaction failures using the InnoDB deadlock report, live lock queries and safer transaction ordering.
Allow, deny and temporarily ban IP addresses in CSF
Use CSF commands and the WHM interface to whitelist trusted IPs, permanently deny attackers, add temporary bans and ignore IPs in LFD, with the files behind each list.
Change the root password and hostname of a VPS in Virtualizor
Reset a forgotten VPS root password and change the server hostname from the Virtualizor panel, or do it inside Linux, and avoid common problems after the change.
Check the Windows Firewall rule for RDP port 3389
Find and verify the inbound TCP 3389 rule that lets Remote Desktop reach your server, recreate it if it was deleted and scope it without locking yourself out.
AutoSSL for customer accounts: check and fix SSL as a WHM reseller
How AutoSSL issues free SSL certificates for your customers' domains, how to check certificate status, turn it on in feature lists and fix failed domains.
Locked out by your firewall? How to get back into your VPS
If a firewall rule blocked SSH, you can still reach your server through the browser console in your VPS provider's control panel. Disable the firewall, fix the rule and turn it back on safely.
Use any pull CDN with LiteSpeed Cache (CDN mapping)
Connect LiteSpeed Cache to a pull CDN such as BunnyCDN or KeyCDN with CDN mapping: create the pull zone, map file types to the CDN URL, test, and purge correctly.
Linux Firewall: Using nftables to Drop Malformed Packets and Attack Vectors
Build nftables chains that drop malformed packets, invalid conntrack states and common scan patterns before they reach your services, then verify the counters.
cPanel cron job not running? Troubleshooting and correct command formats
Fix cron jobs in cPanel that do not run or fail silently: correct PHP paths, absolute file paths, output emails, URL-based crons, timing syntax and logging.
.htaccess security rules: block IPs, disable directory listing and restrict folders
Copy-ready .htaccess rules for cPanel hosting: block or allow IP addresses, turn off directory browsing, protect .htaccess and config files, and stop hotlinking.
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