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.
DNS SRV records explained: format, examples and setup
What SRV records do, the service, protocol, priority, weight, port and target fields, real examples for Microsoft 365, SIP, XMPP and Minecraft, and how to add and test them.
Set up a WHMCS staging copy for testing
Create a safe WHMCS test installation: copy files and database, use a development licence, disable cron, emails and gateways, and test updates, themes and modules.
Using lsof to identify processes consuming high amounts of server resources
Use the lsof command to find which process holds a port, file or deleted log open on your Linux VPS, and fix the resource problem at its source.
Server CPU cores, threads and ECC RAM explained
What CPU cores, threads, vCPUs and clock speed mean for a server, why servers use ECC RAM, how much CPU and memory a site needs, and how to check them on Linux.
Dedicated IP vs shared IP: does your website need its own IP address?
How shared IP hosting works with SNI and virtual hosts, the myths about SEO and SSL, and the real cases where a dedicated IP helps, such as email reputation or reseller branding.
Recover a Linux VPS from a kernel panic
Diagnose and fix a Linux kernel panic on a VPS: read the panic message on the VNC console, boot an older kernel, rebuild the initramfs, fix fstab and recover from a rescue system.
Configure Softaculous in WHM: admin settings, updates and disabled scripts
Set up Softaculous as server admin in WHM: general settings, update policy, disable scripts, default backup locations, email templates and per-package limits.
Install a purchased SSL certificate in cPanel
Generate a private key and CSR in cPanel, order the certificate, then install the certificate and CA bundle under SSL/TLS and check the chain is complete.
Pass a USB device through to a Proxmox VM
Give a Proxmox VM direct access to a USB device such as a licence dongle, Zigbee stick or UPS: pass by vendor/product ID or by port, and know the migration limits.
wp-config.php explained: the settings that matter
Understand and edit wp-config.php: database settings, table prefix, security keys, debug options, memory limits, URLs and other useful WordPress constants.
Redirect HTTP to HTTPS in Nginx
Send every plain HTTP visitor to the secure HTTPS version of your site with one return 301 in Nginx, while keeping Let's Encrypt renewals working and avoiding redirect loops.
cPanel Backup Wizard: partial backups of files, databases and email
How to use the cPanel Backup Wizard to download partial backups of your home directory, MySQL databases, email forwarders and filters, and how to restore each one safely.
Install cPanel & WHM on Rocky Linux or CloudLinux
Install cPanel & WHM on a fresh Rocky Linux or CloudLinux 8/9 server: requirements, hostname and network prep, the installer, licence activation, hardening and fixes.
Fix MariaDB Authentication Plugin Errors After Upgrade
MariaDB upgrades often change how accounts authenticate, so logins that worked yesterday fail with plugin or access-denied errors. This guide shows how to check which plugin a user has and switch it safely.
WordPress site down? A step-by-step checklist
Work out why a WordPress site is offline: check if it is down for everyone, domain and DNS, SSL, hosting account status, resource limits, PHP errors and the database.
AutoSSL not working in cPanel: causes and fixes
AutoSSL failing to issue or renew a certificate? Learn how to read the AutoSSL log, fix DNS and validation problems, Cloudflare and .htaccess blocks, and CAA records.
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.
Use a different PHP version per website in Nginx
Run each Nginx site on its own PHP version by pointing its server block at a different PHP-FPM socket, give each site a separate pool, and confirm the version without leaving phpinfo exposed.
Fix "Read-only file system" errors on a Linux VPS
Find out why Linux remounted a disk read-only, check kernel logs for disk or filesystem errors, run fsck safely from rescue mode and recover writes without losing data.
Implementing advanced rate limiting in Nginx using limit_req
Use Nginx limit_req_zone and limit_req to cap requests per second, allow bursts, key limits by IP or API token and return clean 429 responses instead of letting abuse through.
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