Guides from the NOC

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.

Still running CentOS 7 or 8 past its end-of-life date? Here's how to safely migrate your VPS to AlmaLinux or Rocky Linux without losing data or uptime.

UFW commands don't work on AlmaLinux. Learn firewalld zones, firewall-cmd basics, and how to secure a fresh AlmaLinux or CentOS VPS without locking yourself...

Choosing an OS for your VPS? Compare Ubuntu, AlmaLinux, and Debian on cPanel support, package management, and update cycles before you provision your server.

Getting a 403 or 500 error on a symlinked file in cPanel? Learn how CloudLinux's Symlink Race Condition Protection works and how to fix it the right way.

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

Getting '508 Resource Limit Is Reached' in cPanel? Learn how CloudLinux LVE limits work, which one you're hitting, and how to fix it for good.

Getting 'Resource Limit Is Reached' or a 508 error in cPanel? Learn how CloudLinux LVE limits work, which one you're hitting, and how to fix it fast.

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.

Set up cPanel Web Disk to mount your hosting as a drive on Windows, macOS, or Linux, and fix common WebDAV connection and upload errors.

Running Docker Compose on a VPS? Fix containers that vanish after reboot, port conflicts with Nginx, volume permission errors, and lost data, the right way.

Go beyond Netdata's live view: install Prometheus and Grafana on your VPS for long-term history, multi-server dashboards, and real alerts.

VPS clock right but cron, WordPress, and MySQL times don't match? Fix timezone settings across OS, PHP, MySQL, cron, and Docker layer by layer.

Learn how to use cPanel's WordPress Toolkit to clone, stage, and safely auto-update WordPress sites without SSH or phpMyAdmin, plus fixes for common errors.

Planning a do-release-upgrade on your Ubuntu VPS? Use this safe checklist to avoid downtime, broken PHP/Nginx configs, and SSH lockouts mid-upgrade.

Add TOTP two-factor authentication to SSH logins on your VPS using PAM and Google Authenticator, including the fix for the lockout risk everyone hits first.

Node, PM2, or code-server throwing ENOSPC: System limit for number of file watchers reached on your VPS? Fix the fs.inotify.max_user_watches limit for good.

VPS throwing 'fork: retry: Resource temporarily unavailable'? Learn how nproc/ulimit -u limits work and how to diagnose, raise, and prevent them safely.

Install Memcached on your VPS, wire it into PHP sessions, and fix Connection Refused and Class Memcached Not Found errors while keeping port 11211 secure.

Install Elasticsearch on a VPS the right way: fix the vm.max_map_count bootstrap error, size the JVM heap correctly, and lock down access before going live.

Set up vsftpd on a bare VPS with TLS encryption and a proper chroot jail, and fix the passive-mode firewall issue that breaks most FTP setups.

VPS dropped off the network after a netplan edit? Learn the common YAML mistakes, how to recover access via console, and set a static IP correctly.

Install Caddy on your VPS and get free auto-renewing HTTPS with zero Certbot config. Step-by-step setup, reverse proxy examples, and fixes for common errors.

VPS throwing "Temporary failure in name resolution"? Fix broken resolv.conf, systemd-resolved, and firewall issues stopping DNS lookups on Linux.