English to French Tech/Engineering Computers: Systems, Networks

Also known as "jumbbox", "jump host" or "secure administrative host", which is a (special-purpose) computer on a network typically used to manage devices in a separate security zone (Wikipedia).

So far I've seen it translated as "serveur intermédiaire (+ English term in brackets)". I also found “bastion" ("bastion host" in English), but I'm not sure if it has the exact same meaning.