NGINX proxies requests to servers using HTTP or non-HTTP protocols. Requests can be proxied to servers via proxy_pass directive in locations. Supports protocols like FastCGI, uwsgi, SCGI, and memcached. URI can be specified with or without replacing request parts
SMTP is used by email clients to send messages. POP or IMAP protocols are used for downloading emails. Error 535 occurs when authentication fails in Microsoft Outlook
PostgreSQL is an object-relational database management system. Supports SQL:2011 standard and ACID compliance. Handles both small single-machine and large network applications. Provides replication for security and scalability
Error 40 occurs when SQL Server instance uses dynamic ports. Multiple SQL Server instances can run on same machine. Default instance uses port 1433, named instances use dynamic ports
Data packs modify Minecraft servers using JSON files containing game data. They allow adding new features and changing game behavior
Error occurs when Cloudflare cannot make TCP connection to origin server. Commonly caused by firewalls or security software blocking Cloudflare requests