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Guides from the NOC

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

115 posts matching “vps” · Clear

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 · 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 · 17 views
VPS Update Every WordPress Site on Your Server in One Pass

Managing dozens of WordPress sites on one VPS or WHM reseller account? Use a safe WP-CLI loop script to update plugins, themes, and core everywhere at once.

17 August 2026 · 7 min · 12 views
Troubleshooting Composer Install Failing in cPanel: Memory & Timeout Fixes

Composer install failing on cPanel or a VPS? Fix memory exhaustion, proc_open blocks, timeouts, and missing SSH access with these tested steps.

13 August 2026 · 6 min · 18 views
cPanel phpMyAdmin Import Failing? Fix 'max_allowed_packet' Errors

phpMyAdmin import stuck or showing 'MySQL server has gone away'? Fix max_allowed_packet errors on shared cPanel hosting and VPS, with prevention tips.

9 August 2026 · 6 min · 18 views
Troubleshooting Fix 'open_basedir Restriction in Effect' in cPanel & WordPress

PHP warning open_basedir restriction in effect blocking WordPress? Learn what causes it in cPanel and VPS hosting, and the exact fix for each case.

2 August 2026 · 5 min · 24 views
VPS Docker Bypassing Your UFW Firewall? Here's the Real Fix

Published Docker container ports staying open even after UFW denies them? Learn why Docker bypasses UFW via iptables, and how to actually lock it down.

30 July 2026 · 7 min · 25 views
Troubleshooting WooCommerce HPOS Migration Errors and How to Fix Them

Enabling WooCommerce HPOS and now orders are missing, duplicated, or stuck syncing? Here is what causes it and how to fix it on cPanel or VPS hosting.

29 July 2026 · 6 min · 18 views
Troubleshooting PHP Execution Timeout: Fix Failed Large File Imports

WooCommerce import or database restore stalling with 'maximum execution time exceeded'? Learn which of four timeout layers is really at fault and how to fix it.

29 July 2026 · 7 min · 18 views
Troubleshooting CloudLinux CageFS: Fix “Command Not Found” Errors in cPanel

CloudLinux CageFS hiding a binary from your cPanel account? Learn why CageFS isolates users and how to safely make new commands and extensions visible.

27 July 2026 · 6 min · 8 views
VPS Stop WordPress Brute-Force Logins with a Fail2Ban Jail

wp-login.php getting hammered by bots? Set up a custom Fail2Ban jail on your VPS to block WordPress login brute-force attacks right at the firewall level.

21 July 2026 · 6 min · 12 views
Troubleshooting Laravel 500 Error After Deploy: Fix Permissions & .env Issues

Laravel throwing a 500 error after deploying to cPanel or a VPS? Learn the real causes - storage permissions, .env, APP_KEY - and the exact fix.

21 July 2026 · 6 min · 24 views
WordPress WP-CLI Guide: Manage WordPress From the Command Line

Learn how to install and use WP-CLI on cPanel or a VPS to update plugins, fix URLs after migration, reset passwords, and automate WordPress maintenance.

20 July 2026 · 5 min · 8 views
Hosting WHM Reseller Hosting: How to Create and Manage cPanel Accounts

Set up WHM reseller hosting the right way: create packages, add cPanel accounts, set ACLs, brand nameservers, and avoid overselling disk and bandwidth.

17 July 2026 · 6 min · 4 views
VPS cPanel EasyApache 4: Rebuild PHP/Apache Without Breaking Sites

Rebuild PHP and Apache with cPanel EasyApache 4 in WHM safely - avoid the missing extensions, PHP handler mismatches, and 500 errors a bad rebuild causes.

16 July 2026 · 5 min · 14 views
Domains IPv6 and AAAA Records: Why Your Site Fails on Some Networks

Site slow or unreachable on mobile data but fine elsewhere? Learn what AAAA records do, how a broken one causes this, and how to fix or remove it.

16 July 2026 · 6 min · 21 views
Troubleshooting MySQL Slow Query Log: Find and Fix Queries Slowing Your Site

Site feels sluggish but CPU looks fine? Learn how to enable the MySQL slow query log, read it with mysqldumpslow, and fix the queries actually slowing you down.

16 July 2026 · 6 min · 20 views
VPS Wildcard SSL with Let's Encrypt: DNS-01 Setup Guide

Wildcard SSL failing over HTTP-01? Learn why Let's Encrypt needs DNS-01 validation and how to set up wildcard certs with Certbot or acme.sh.

15 July 2026 · 6 min · 25 views
Troubleshooting MySQL "Too Many Connections" Error: Causes and the Fix

Getting MySQL error 1040 Too Many Connections on your WordPress site or VPS? Learn how to diagnose the real cause and fix it safely, step by step.

13 July 2026 · 6 min · 25 views