This guide explains how to configure a MySQL client to connect through a bastion host using an SSH tunnel, covering both the standard local connection settings and the jump‑server parameters needed when direct external access is prohibited.
This article presents a jump server solution that leverages Linux PAM to intercept authentication, outlines its micro‑service architecture, describes login, command, and privilege flows for Linux, Windows, MySQL, Redis and network devices, and discusses permission rules, high‑availability design, and security advantages.
The article describes a PAM‑based jump‑server architecture that securely proxies SSH, RDP, and other terminal access without storing credentials, using stateless micro‑services and a custom jmp.so module on each host to intercept authentication, enforce permission rules, and block dangerous commands.
