Step-by-step help for your hosting

• VirtFusion troubleshooting: fix common errors on servers and hypervisors

  Diagnose the most common VirtFusion problems: offline hypervisors, stuck builds, VPSs without network, failed WHMCS provisioning, broken VNC and panel login issues.

  AdvancedVPS hosting providers3 min read

• Why is my website slow? Troubleshooting on cPanel hosting

  A step-by-step checklist to find why a site on cPanel hosting is slow: measure first, then check caching, resource limits, PHP version, database, bots and heavy pages.

  IntermediatecPanel hosting2 min read

• WHMReseller troubleshooting: common errors for master and alpha resellers

  Fix common WHMReseller problems: plugin missing, cannot create resellers, limits not applying, sub-reseller accounts not visible, suspension gaps and licence errors.

  IntermediateMaster reseller hosting2 min read

• Troubleshooting container networking issues: bridge vs host mode in Docker

  Bridge and host mode move packets in different ways, so the same symptom usually has a different cause. Work through host, container and DNS checks to find the real fault.

  IntermediateLinux server7 min read

• Proxmox troubleshooting: fix common VE errors

  Solve frequent Proxmox VE problems: locked VMs, web UI not loading, VMs that will not start, full storage, lost quorum, and network loss after configuration changes.

  IntermediateProxmox VE2 min read

• Why is my VPS slow? Performance troubleshooting on Virtualizor

  Find the cause of a slow VPS: compare Virtualizor graphs with top, check CPU steal, I/O wait, memory and swap, disk space and network, then fix or upgrade.

  IntermediateVirtualizor VPS2 min read

• VPS has no network or internet? Troubleshooting on Virtualizor

  Diagnose a Virtualizor VPS that is online but unreachable: check status and IPs in the panel, test from VNC, fix interface, gateway, DNS and firewall problems.

  IntermediateVirtualizor VPS2 min read

• DirectAdmin website not loading? Troubleshooting checklist

  Find why a site on DirectAdmin is down: check DNS, SSL, suspension, default pages, permissions, PHP errors, .htaccess, quotas and server services in order.

  IntermediateDirectAdmin2 min read

• Website down? A step-by-step troubleshooting checklist

  A calm, ordered checklist for when your website stops loading: is it just you, domain and DNS, SSL, error codes, resource limits, disk space and recent changes.

  BeginnercPanel hosting2 min read

• 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.

  IntermediatecPanel hosting2 min read

• Plesk website not loading? A step-by-step troubleshooting checklist

  Work through DNS, SSL, hosting settings, PHP, logs, suspended subscriptions and server services to find why a website hosted on Plesk is down or showing errors.

  IntermediatePlesk2 min read

• Troubleshooting MySQL deadlocks and transaction failures

  Diagnose MySQL deadlocks and transaction failures using the InnoDB deadlock report, live lock queries and safer transaction ordering.

  AdvancedLinux server6 min read

• Troubleshooting IIS application pool recycling and crashing

  Find out why an IIS application pool keeps recycling or stops completely, read the event log evidence, and apply a fix that sticks.

  IntermediateWindows server8 min read

• Troubleshooting Apache MPM switching: worker vs event vs prefork

  Apache loads only one MPM at a time, and switching between prefork, worker and event fails when mod_php, duplicate LoadModule lines or panel rules get in the way. This guide shows how to check, switch and fix it.

  AdvancedLinux server7 min read

• 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.

  BeginnerWindows server3 min read

• File upload blocked or deleted by Imunify360? Here is why

  Why Imunify360 blocks or removes files right after upload via FTP, File Manager or WordPress, how to confirm it was a malware detection, and what to do next.

  BeginnercPanel hosting with Imunify3602 min read

• Access your VPS with the Virtualizor VNC console

  Open the browser VNC console in Virtualizor to reach your VPS when SSH fails, use an external VNC client, change the VNC password and fix a blank or frozen console.

  BeginnerVirtualizor VPS2 min read

• Fix AutoSSL not issuing certificates in cPanel

  Work out why cPanel AutoSSL fails for a domain: DNS not pointing here, DCV errors,.htaccess redirects, CAA records and rate limits, using the AutoSSL log in WHM.

  IntermediateLinux server4 min read

• Allow RDP port 3389 through your PC's firewall or antivirus

  Your own computer's security software can block Remote Desktop to port 3389. Find the block, add a narrow exception for mstsc or TCP 3389, and keep protection switched on.

  IntermediateWindows server5 min read

• Check that Windows is listening on RDP port 3389

  Confirm from inside the server that Remote Desktop is configured for port 3389, the service is running and Windows is actually listening, then fix any mismatch.

  IntermediateWindows server4 min read

Browse by topic

• 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