Step-by-step help for your hosting

• Fix "command not found" errors on Linux

  Find out why bash says command not found: package not installed, wrong PATH, typos, sudo's secure_path, version-specific binaries and scripts with Windows line endings.

  BeginnerLinux VPS3 min read

• Install and use the QEMU guest agent on KVM VMs

  Install qemu-guest-agent on Linux and Windows VMs, add the virtio-serial channel on the host, and use it for clean shutdowns, IP reporting, filesystem freeze for backups and password resets.

  IntermediateKVM hosts and VMs2 min read

• Install and enable the QEMU guest agent in Proxmox VMs

  Enable the QEMU guest agent so Proxmox can see VM IPs, shut down cleanly, freeze filesystems for consistent backups and run commands, on Linux and Windows guests.

  BeginnerProxmox VE2 min read

• Create a Linux server lab VM in VirtualBox

  Install VirtualBox on Windows, macOS or Linux, create an Ubuntu Server VM, choose NAT or bridged networking, set up port forwarding for SSH, and use snapshots to practise safely.

  BeginnerDesktop computers2 min read

• Resize a Proxmox VM disk and grow the filesystem

  Increase a Proxmox VM disk in the web UI or with qm resize, then grow the partition, LVM and filesystem inside Linux or Windows so the extra space is usable.

  IntermediateProxmox VE2 min read

• Convert SSL certificate formats: PEM, CRT, DER, PFX and P7B with OpenSSL

  What the common SSL certificate file formats are, how to tell them apart, and the exact OpenSSL commands to convert between PEM, DER, PFX/PKCS#12 and P7B for cPanel, Windows and other servers.

  IntermediateEveryone3 min read

• VirtIO drivers on KVM: what they are and how to install them

  Understand VirtIO paravirtualized drivers for KVM disks, network, memory balloon and RNG, check they are in use on Linux, and install the virtio-win drivers on Windows guests.

  IntermediateKVM VPS and hosts2 min read

• Which OS template should you pick in Virtualizor?

  Compare the Linux and Windows templates offered in Virtualizor – AlmaLinux, Rocky, Ubuntu, Debian and Windows Server – by use case, support lifetime and control panel compatibility.

  BeginnerVirtualizor VPS2 min read

• Update Virtualizor and maintain your VPS host nodes

  Update the Virtualizor panel and its nodes, apply OS and kernel updates safely, plan maintenance windows, notify customers and check that virtual machines come back.

  AdvancedVirtualizor admin2 min read

• Set up a WireGuard VPN server on a Linux VPS

  Install WireGuard on an Ubuntu or Debian VPS, create server and client keys, enable forwarding and NAT, and connect from Windows, macOS or a phone.

  AdvancedLinux VPS (Ubuntu · Debian)2 min read

• Troubleshoot MTU problems: hanging pages, stuck SSH and slow VPNs

  Recognise MTU and fragmentation problems, find the right MTU with ping, and fix it on Linux, Windows, WireGuard and Docker networks.

  AdvancedLinux and Windows servers · VPNs2 min read

• 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.

  IntermediateWindows · macOS and Linux3 min read

• Set up cPanel Web Disk to map your hosting as a network drive

  Create Web Disk accounts in cPanel and connect them on Windows, macOS, Linux or mobile so your website files open like a normal drive or folder over secure WebDAV.

  BeginnercPanel hosting2 min read

• SSH access in cPanel: generate, import and authorise SSH keys

  Connect to your cPanel hosting over SSH with keys: generate or import a key in cPanel SSH Access, authorise it, and connect from Windows, macOS or Linux.

  IntermediatecPanel hosting2 min read

• Use the SSH config file to save hosts and shortcuts

  Save every server's address, user, port and key in ~/.ssh/config so you can connect with a short name, share settings with wildcards and avoid key errors with IdentitiesOnly, on Windows, macOS and Linux.

  IntermediateLinux server4 min read

• Allow log on through Remote Desktop: user rights explained

  How Windows decides who may sign in over Remote Desktop, from the Remote Desktop Users group to deny rights that override every allow, and how to fix "not authorized for remote login".

  IntermediateWindows server5 min read

• Local Group Policy Editor basics for a standalone server

  Use gpedit.msc on a Windows VPS or Admin RDP that is not in a domain, understand computer and user settings, apply changes with gpupdate and check them with gpresult.

  IntermediateWindows server5 min read

• What root and administrator access mean on your server

  Understand full root access on Linux and Administrator access on Windows, what you can change with them, the responsibilities that come with that control, and safe habits to adopt.

  Beginner4 min read

• Start a program automatically when you connect over RDP

  Compare the mstsc Programs tab and.rdp alternate shell with the Startup folder and logon tasks, then pick the right way to open an app when you connect.

  IntermediateWindows server5 min read

• Make Remote Desktop reconnect automatically after drops

  Turn on automatic reconnection in the Remote Desktop client and.rdp file, set a keep-alive interval on the server and check whether your network is the real cause.

  BeginnerWindows server5 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