Step-by-step guides and fixes for server administrators: cPanel, DirectAdmin, Windows Server, email, DNS, security and more. Free to read, tested on real servers. Press / to search.
Jump to: Cheat sheets Installation guides Scripts Free tools
Nothing matches. Try a shorter word or another section.
InnoDB Tuning MariaDB 11/12: Shared Hosting Settings
Practical InnoDB settings for a cPanel shared server on MariaDB 11.4, 11.8 or 12.3, with sizing rules for the buffer pool and redo log, the I/O settings that matter on NVMe, what the modern defaults already get right, and how to measure the result.
September 29, 2026
cPanel Root Escalation Incident Response: Critical First 24 Hours
A structured response plan for a cPanel server that was exposed to one of the 2026 root-escalation vulnerabilities before patching, covering containment, evidence capture, indicators of the .sorry ransomware campaign, credential rotation, session and token audits, and the decision to rebuild.
September 29, 2026
Imunify360 Under Attack Mode 2026: WAF and L7 Rate Limit
What changed in Imunify360 across the 2026 releases, how the default-on WordPress WAF, the Layer 7 rate limiter and WebShield's Under Attack Mode behave on shared cPanel and CloudLinux servers, and how to tune each without blocking legitimate customers.
September 29, 2026
High Load cPanel Server: Find the Culprit Fast (5 Tools)
A repeatable diagnostic sequence for a cPanel server with a high load average, moving from load composition (CPU, I/O wait, memory pressure) to the process, account, vhost and query responsible, using tools already installed on every server.
September 29, 2026
Hardening CSF safely: disabling Messenger, remote lists and other risky options
A settings-level review of csf.conf for hosting servers after the 2026 CSF vulnerabilities, covering which options widen the attack surface, what to turn off, what to tighten, and how to confirm the running firewall matches the file.
September 29, 2026
Harden Shared cPanel Server: Secure CageFS and ModSecurity Setup
A layered hardening plan for multi-tenant cPanel hosts on CloudLinux or AlmaLinux, covering CageFS isolation, ModSecurity with the OWASP Core Rule Set, and malware scanning with Imunify360, ImunifyAV or ClamAV.
September 29, 2026
Exim 4.100 Security Fixes: Critical 2026 Changes for Hosting
A hosting administrator summary of the 2026 Exim security fixes (CVE-2026-40684 to 40687 and the .forward privilege escalation), the cPanel and DirectAdmin builds that carry them, what changed in 4.100, and how to confirm a server is patched.
September 29, 2026
EasyApache 4 PHP Versions 8.2 to 8.5: Install and Switch
How to add PHP 8.2 through 8.5 to a cPanel server with EasyApache 4, choose which extensions each version gets, set the system default and switch individual domains, using both WHM and the command line.
September 29, 2026
Dovecot Sieve Filters Roundcube: Mail Rules on cPanel
cPanel & WHM 132 moved to Dovecot 2.4 and enabled Sieve filtering with a managesieve plugin in Roundcube. This guide covers enabling the feature, creating filters in Roundcube, how Sieve coexists with legacy cPanel filters, and the server-side files involved.
September 29, 2026
Dovecot 2.4 Mail Login Failed: Fix Broken Logins on cPanel
After cPanel moved to Dovecot 2.4 with stronger mail password hashing, some mailboxes fail to authenticate or old clients cannot connect. This guide identifies the failing cases from the mail log and resolves them with password resets, protocol settings and client reconfiguration.
September 29, 2026
cPanel Disk Full: Safe Cleanup of Logs, Backups and Mail
A safe order of operations for reclaiming space on a cPanel server that has hit 100%, covering the fastest wins in logs, backups, the Exim queue, cPanel's own caches and package cache, and how to find the account-level growth that caused it.
September 29, 2026
DirectAdmin WordPress Manager and wp-cli: Site Control
Using DirectAdmin's built-in WordPress Manager for installs, updates and staging alongside wp-cli from the shell, including the hook points added in 1.687 that let automation react to each install.
September 29, 2026