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UnderHost Web Hosting Bible
UnderHost Knowledgebase
The complete web hosting, server, domain, DNS, security, email, and infrastructure guide for the entire UnderHost ecosystem.
400+ technical guides
24/7 human support
Global locations since 2007
Start here
Featured guides
Hand-picked walkthroughs that solve the things customers ask about most.
By product
Product documentation
Everything for the services in your UnderHost account-from shared hosting to dedicated infrastructure.
Shared Hosting
11 articles
Fast cPanel hosting for websites, email, and small business projects.
Offshore Hosting
9 articles
Privacy-conscious hosting in flexible international locations.
Cloud VPS
21 articles
Scalable VPS hosting with dedicated resources and root access.
Dedicated Servers
12 articles
Full server control for high-traffic, storage-heavy, or custom workloads.
White-Label Reseller
4 articles
Managed agency hosting with private nameservers, branding, staging, backups, and support.
Domains & DNS
13 articles
Registration, transfers, nameservers, and DNS record management.
SSL Certificates
6 articles
Install, renew, and troubleshoot SSL/TLS for HTTPS sites.
Backups
10 articles
Backup options, schedules, retention, and one-click restores.
Email Services
13 articles
Mailboxes, MX records, deliverability, spam, and mail clients.
Complete index
All documentation categories
Browse by topic across hosting, domains, email, VPS, control panels, security, backups, and troubleshooting.
By platform
Platform & software guides
Control panels, web servers, databases, and developer tooling-documented for UnderHost servers.
cPanel
Hosting control panel
WHM
Server administration
DirectAdmin
Lightweight panel
aaPanel
Free Linux panel
CloudPanel
Modern VPS panel
WordPress
CMS hosting
Cloudflare
CDN & DNS
Linux CLI
Command line
SSH
Secure shell access
FTP / SFTP
File transfer
MySQL / MariaDB
Databases
PHP
Versions & tuning
LiteSpeed
Web server
Nginx
Web server
Apache
Web server
By operating system
Operating system guides
Setup, hardening, and command references for every OS available on UnderHost VPS and dedicated servers.
Fix it fast
Troubleshooting center
Jump straight to the fix for the most common hosting issues-most can be solved without a ticket.
tools.underhost.com
Free diagnostic tools
Run a quick check before you open a ticket-every tool links to the docs that explain the result.
Still stuck?
Real engineers, 24/7.
If the docs didn't solve it, our NOC team is one ticket away. Include your service and any error messages for the fastest resolution.