What is jump server?

A jump server is a computer on a network used to access and manage other computers on that network. It is designed for remote access and management of resources that are not directly accessible from the internet. Jump servers provide a layer of security, as users must first authenticate themselves to connect to the jump server before they can access other resources on the network. Jump servers are commonly used in enterprise and government networks to manage servers and other resources that are not directly publicly accessible. They are also used in cloud computing environments to manage resources in private networks. In addition to security benefits, jump servers can also improve network performance by reducing the number of direct connections to critical assets.