cPanel upcp Failed: Fix Upgrade Blocked Problems
How to read the cPanel update log, resolve the common causes of a failed upcp run (RPM conflicts, disk space, blocked tiers, EOL operating systems such as Rocky Linux or Ubuntu 22.04) and get the server back onto a supported, patched build.
September 29, 2026
Roundcube Database Error and Login Loops: 4 cPanel Fixes
Diagnosing and fixing the two most common Roundcube failures on cPanel, the DATABASE ERROR page and the login form that reloads without an error, covering the SQLite versus MySQL back ends, schema mismatches after updates, session tables and permission problems.
September 29, 2026
MariaDB Not Starting After Upgrade: 5 Recovery Fixes
A recovery sequence for a cPanel server whose MariaDB refuses to start after a version jump, covering removed configuration variables, InnoDB crash recovery levels, running mariadb-upgrade, and application errors caused by stricter sql_mode defaults in 11.4 and later.
September 29, 2026
MariaDB Unknown Variable After Upgrade: Fix Failed Startup
When MariaDB refuses to start after an upgrade with an unknown variable or unknown option error, the cause is a removed setting in my.cnf; this guide shows how to find it quickly, lists the variables removed across recent versions, and covers the related redo-log failure.
September 29, 2026
MailBaby SRS and Strict Forwarding Errors: Reliable Forwarders
Why forwarded mail is the most common source of MailBaby rejections on cPanel servers, how SRS rewrites the return path so SPF passes downstream, how to route forwards through a dedicated transport, and how to handle the backoff MailBaby applies to abusive forwarding.
September 29, 2026
LiteSpeed cPanel plugin CVE-2026-48172: the symlink-to-root flaw and how to verify you’re patched
The June 2026 LiteSpeed WHM plugin flaws CVE-2026-48172 and CVE-2026-54420 let a cPanel user plant a symlink the root-level plugin followed. How to check the version against the fixed 2.4.8 release, update, and look for exploitation.
September 29, 2026
MailBaby Classified as rSPAM: Fix Rejections Fast
What the rSPAM, unauthorised sender, rate-limit and strict-forwarding rejections from relay.mailbaby.net mean, how to read the score in the MailBaby log, and the fixes that get legitimate mail flowing again without loosening your filtering.
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
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 Service Monitor false restarts and systemd status handling
Why DirectAdmin's Service Monitor restarts a service that appears healthy, how the systemd-only implementation from 1.691 decides a service is down, and the unit-file and configuration changes that stop the false positives.
September 29, 2026
DirectAdmin Old Certificate After Renewal: 3 Service Fixes
Why a renewed certificate can appear on the website but not on SMTP, IMAP or port 2222 on a DirectAdmin server, where each service reads its certificate from, and how the 1.710 sync and mail SNI settings fit in.
September 29, 2026