---
created: 2025-11-11 16:24
updated: 2025-11-11 16:24
---
## Nginx

### Header Too Big
Add this to your PHP location block:
```bash
location ~ \.php$ {
    include fastcgi_params;
    # Increase buffer sizes to handle large headers
    fastcgi_buffers 16 16k;
    fastcgi_buffer_size 32k;
}
```

## Apache

### Block Bots / User Agents
```apache
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} (Amazonbot|SemrushBot|meta-externalagent|Bytespider) [NC]
RewriteRule .* - [R=503,L]
```

## Server Diagnostics

### List All Listening Ports with Process Names
Useful for tracking multiple InertiaJS SSR servers or identifying which service is using which port.
```bash
sudo lsof -i -P -n | grep LISTEN
```

#Snippets #Nginx #Apache #Diagnostics