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
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- 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.
Enable Node.js and Python Selector for cPanel users (CloudLinux root guide)
Install alt-nodejs and alt-python versions, enable the Node.js and Python selectors in CloudLinux Manager, set defaults and limit what users can run.
Where is my.cnf? MySQL and MariaDB config files explained
Find the MySQL or MariaDB config files on Ubuntu, Debian, AlmaLinux and Rocky Linux, learn the order they load in, and confirm which settings are really active.
Common server ports explained: 21, 22, 25, 465, 587, 993, 995, 3306 and 53
A plain-English reference to the ports every hosting server uses besides HTTP: FTP, SSH, SMTP submission, IMAP, POP3, MySQL and DNS, with what to open and what to keep closed.
Optimise images in WordPress for faster pages
Make WordPress images smaller without visible quality loss: resize before upload, compress and convert to WebP, lazy load, and clean up unused image sizes.
Set up Nginx as a reverse proxy for any backend app
Put Nginx in front of a Node.js, Python, Go or Java app running on a local port, forward the right headers, tune timeouts and buffering, and add free HTTPS.
Repair an unbootable Linux VPS from rescue mode with chroot
Boot a broken VPS into a rescue system, find and mount its disk, chroot into it, then fix common problems: bad fstab, broken GRUB, lost SSH access, full disk or a failed kernel update.
Control client registration in WHMCS: email verification and spam signups
Require email verification for new WHMCS clients, decide whether visitors can register without ordering, block disposable emails and bots, and clean up fake accounts.
Change the PHP version and PHP settings per domain in Plesk
Change the PHP version for one domain in Plesk and edit its php.ini values, including memory_limit, upload_max_filesize and max_execution_time.
Create a KVM virtual machine with virt-install
Use virt-install to create a KVM virtual machine from the command line: choose CPU, RAM and disk, attach an ISO or cloud image, connect a bridge and finish the install over VNC or serial console.
What is a hosting control panel? cPanel vs Plesk vs DirectAdmin
What a hosting control panel does, the difference between end-user and admin panels, and a fair comparison of cPanel/WHM, Plesk and DirectAdmin to help you choose.
Block or allow countries in Nginx with GeoIP2
Use the GeoIP2 module and a GeoLite2 country database to allow or block traffic by country in Nginx, restrict only admin areas, keep the database updated and avoid locking out real users.
Imunify360 reputation management: check if your domain is blacklisted
How Imunify360 reputation management checks your domains and IPs against blacklists such as Google Safe Browsing and spam lists, and how to get delisted after a problem.
Make files immutable with chattr and lsattr
Protect important files from being changed or deleted, even by root, with the chattr immutable and append-only flags, and learn to spot and remove them with lsattr.
Disaster recovery for servers: RPO, RTO and a simple DR plan
Plan disaster recovery for VPS and hosting: define RPO and RTO, choose backup, replication or standby strategies, document a runbook, and test restores so recovery actually works.
Configure automatic updates in WordPress
Decide which WordPress updates run automatically: enable auto-updates for plugins and themes, control core updates in wp-config.php and get notified when they run.
How to test whether RDP port 3389 is reachable
Check in under a minute whether your server answers on RDP port 3389, from Windows, Mac or Linux, and learn what each result means and what to do next.
Set up a Proxmox VE cluster and enable high availability
Join Proxmox VE nodes into a cluster, understand corosync quorum and the need for three votes, add shared storage, migrate VMs between nodes and enable HA for automatic failover.
Install multiple PHP versions on Ubuntu with the ondrej PPA
Add the ondrej/php PPA on Ubuntu, install PHP 7.4 to 8.4 side by side with FPM, choose the CLI default, assign versions per site in Apache or Nginx, and keep them updated.
Troubleshoot PostgreSQL Locks and Blocking Queries
Find the session holding a PostgreSQL lock, read pg_locks and pg_stat_activity, and cancel or terminate blocking queries without losing data.
Redirect www and non-www to one HTTPS address
Make every version of your domain land on one canonical HTTPS address: certificate coverage for both names, .htaccess rules, WordPress settings and testing all four variants.
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