Please suggest how to get private keys being stored in a hardware device like your Nitro HSM but on a virtual hosting like LInode.
Most likely Linode will not allow to post them a key and insert into their server but I think a smaller hosting company can accept such a challenge?
What is the idea behind networked HSM devices? How do they provide required level of security if on a Linux host there is no a hardware device like NitroKey/HSM? Are networked HSM devices only for LANs environments without MITM threats?