Unmanaged hosting is where the user is responsible for all server management after initial provisioning. The provider sets up the server and OS, but you must install software, apply patches, and handle security. In a forex context, an unmanaged VPS or dedicated server means the trader or their IT team must configure and maintain the trading environment themselves. This requires technical expertise. The benefit is typically lower cost and greater control, but the drawback is that any downtime or misconfiguration will need to be addressed by you, not the host. Unmanaged is suitable if you are comfortable with server administration; otherwise a managed service is safer for mission-critical trading systems.