We have an existing Red Hat Satellite server to manage RHEL hosts, and I’ve recently built a Foreman server to manage other Linux hosts.
Is it possible to connect Satellite to Foreman in some way, so that we can see all Linux hosts managed by Satellite in Foreman?
No, this is not possible.
While you cannot “connect” a Satellite installation to Foreman, you could have hosts created and deleted on remote instances via webhooks. I haven’t done it myself but it should be doable.
if you’re running a reasonably new version of Satellite could you not just get Satellite to manage your not RHEL hosts, you’ve already made the investment in satellite and non-RHEL hosts won’t eat your entitlement, you could even put the other linux hosts on a separate capsule if you’re trying to do some sort of segregation