Hestiacp protects against proxy connections

Hello

I would like to know if Hestiacp installs some type of security that does not allow users connected from proxy to access the panel

it depend on what you use , default ip tables or csf ? and which blacklists you use too

No Hestia doesn’t not prevent anything against proxy usage in hestia-nginx.

In fact, if fail2ban bans my office, we use a proxy to unban ourselves.

You can place whitelists for fail2ban, should prevent such a behaviour.

But I do not have a fixed IP.

And the failwban whitelist doesn’t refresh with dyndns

I do not know well. Everything that comes by default with the installation.