Blog · page 3

Guides from the NOC

Written from running the hardware — what breaks, why, and the command that fixes it.

423 posts.

Domains How to Export and Import a DNS Zone File (Without Downtime)

Learn how to export a DNS zone file from cPanel, edit it safely, and re-import it during a registrar switch or migration without breaking email or your site.

23 August 2026 · 7 min · 14 views
cPanel cPanel/WHM 'Not Secure' at Port 2083? Fix the Panel SSL

Browser flags cPanel or WHM login as Not Secure while your website is fine? Learn why the panel's SSL is separate and how to fix it for good.

22 August 2026 · 6 min · 10 views
VPS MySQL Point-in-Time Recovery on a VPS Using Binary Logs

Restore MySQL to the exact second before a bad query hit with binary log point-in-time recovery. Setup, restore steps, and mistakes to avoid.

22 August 2026 · 7 min · 9 views
WordPress WordPress wp_options Bloat: Find and Fix Autoload Data

A bloated wp_options table with too much autoloaded data slows every WordPress page load. Here's how to find the worst offenders and clean it up safely.

22 August 2026 · 5 min · 7 views
VPS Provisioning VPS Servers with Terraform: A Beginner's Guide

Provision VPS servers with Terraform instead of clicking through a dashboard: write reusable, version-controlled infrastructure code, step by step.

22 August 2026 · 6 min · 11 views
VPS Traefik Reverse Proxy on a VPS: Docker Labels + Auto HTTPS

Set up Traefik on your VPS to auto-route Docker containers and issue Let's Encrypt SSL with zero config reloads. Step-by-step guide with fixes for common err...

22 August 2026 · 5 min · 10 views
cPanel cPanel Security Advisor Warnings: What to Fix, What to Skip

Confused by red and yellow warnings in WHM's Security Advisor? Here's what each common one really means, which to fix today, and which are safe to skip.

21 August 2026 · 6 min · 17 views
cPanel MySQL "Unknown Collation" Error After Migration: Causes & Fix

Getting 'Unknown collation utf8mb4_0900_ai_ci' when importing a MySQL 8 database dump into cPanel's older MariaDB? Here's the exact cause and fix, step by step.

21 August 2026 · 5 min · 19 views
cPanel Softaculous Installation Stuck or Failed: Causes and the Fix

Softaculous install stuck or failing in cPanel? Here's every real cause - disk quota, database limits, PHP version, mod_security - and how to fix each one.

21 August 2026 · 6 min · 22 views
VPS SSH "Permission Denied (publickey)": Causes and the Fix

Locked out of your VPS with SSH "Permission denied (publickey)"? Every real cause - wrong key, bad permissions, SELinux, sshd_config - and the fix for each.

21 August 2026 · 6 min · 19 views
Troubleshooting MySQL max_user_connections Error: Causes and the Fix

MySQL error 1226 'max_user_connections' exceeded on cPanel or WHM hosting? Here's exactly why it happens and how to raise the limit and fix it for good.

21 August 2026 · 7 min · 26 views
Troubleshooting Leverage Browser Caching: Fix That PageSpeed Warning

Still failing 'leverage browser caching' in PageSpeed or GTmetrix? Set Cache-Control and Expires headers correctly on cPanel and VPS hosting - step by step.

20 August 2026 · 6 min · 13 views
VPS SELinux Blocking Nginx? Fix 403s Without Disabling It

SELinux blocking Nginx with 403 or Permission denied on your AlmaLinux VPS? Read the AVC denial, fix file contexts, booleans and ports the right way.

20 August 2026 · 7 min · 15 views
WordPress UpdraftPlus Backup Failed or Stuck? How to Fix It

UpdraftPlus backup stuck, failing, or won't restore? Learn the real causes - cron, PHP limits, remote storage auth - and how to fix each one on cPanel hosting.

20 August 2026 · 6 min · 22 views
VPS DNS Failover: Keep Your Site Up When Your VPS Goes Down

Learn how DNS failover keeps your site online when your VPS goes down, with practical Cloudflare, DNS provider, and self-managed failover setup steps.

20 August 2026 · 6 min · 16 views
VPS Nginx Rate Limiting: Stop Bot Floods with limit_req

Learn how to configure Nginx limit_req to stop bot floods and brute-force attacks on your VPS, with real config examples, testing steps, and common mistakes.

20 August 2026 · 6 min · 14 views
VPS Install RabbitMQ on a VPS: Setup, Users & Firewall Rules

Install RabbitMQ on an Ubuntu VPS, lock down the default guest account, open it safely for remote workers, and fix the connection errors that trip people up.

19 August 2026 · 6 min · 12 views
Hosting Convert MyISAM to InnoDB in phpMyAdmin the Safe Way

Learn why old MyISAM tables cause crashes and locking issues, and how to safely convert them to InnoDB in phpMyAdmin without breaking WordPress or WooCommerce.

19 August 2026 · 6 min · 17 views
VPS IP Warmup for a New VPS Mail Server: Avoid the Spam Folder

New VPS mail server landing in spam despite correct SPF/DKIM/DMARC? Learn the IP warmup ramp-up schedule that builds sender reputation properly.

19 August 2026 · 5 min · 8 views
WordPress How to Enable WP_DEBUG and Actually Read the WordPress Log

Learn how to safely turn on WP_DEBUG in WordPress, find wp-content/debug.log, and decode fatal errors, warnings, and deprecation notices to fix issues fast.

19 August 2026 · 8 min · 7 views
VPS Deploy a Python App on a VPS: Gunicorn, Nginx & systemd

Step-by-step guide to deploying Django or Flask on a VPS with Gunicorn, Nginx as a reverse proxy, and systemd, so it survives reboots, crashes, and deploys.

19 August 2026 · 5 min · 18 views
WordPress Security Plugin Locked You Out of WordPress? Fix It Fast

Wordfence, Sucuri, or iThemes blocking your own login? Regain access via File Manager or SFTP, fix the firewall rule, and whitelist your IP for good.

18 August 2026 · 6 min · 13 views
Troubleshooting MySQL "Access Denied for User" in cPanel: Causes & Fix

Getting 'Access denied for user' connecting to MySQL in cPanel? Fix unlinked users, host mismatches, wrong username prefixes, and stale credentials fast.

18 August 2026 · 6 min · 22 views
WordPress WooCommerce Order Emails Not Sending? Here's the Real Fix

WooCommerce shows a new order but no confirmation email shows up? Fix stuck Action Scheduler jobs, SMTP conflicts, and cPanel deliverability issues fast.

18 August 2026 · 6 min · 10 views