This was in the context of my dedicated server - not cloud.
First, I asked whether I could run a non-mining Ethereum node. The answer was no.
Then I asked:
>How about if I sync one copy of the Ethereum block chain (about 350 GB of data) to my server without allowing it to be publicly accessible - is that allowed?
and also whether they allow crypto applications at all. Hetzner support answered
> Dear ladies and gentlemen
> We do not allow any crypto related applications.
Hetzner's public documentation only seems to forbid mining applications, which they started doing in May on all servers including dedicated.
There is also this Reddit post from about 1 month back that indicated they forbid crypto applications on cloud servers
https://www.reddit.com/r/ethstaker/comments/qwteod/be_careful_with_hetzner_any_crypto_activity_is/
but it appeared that did not apply to dedicated servers.
Has any one else on HN received a recent response from Hetzner regarding what is permitted on dedicated servers with respect to crypto applications?