Check that user does not have open port that is covered by Sentinel or HaaS
It is common issue that users open SSH or SMTP alongside the Sentinel minipots or HaaS. The integration is implemented in such a way that minipots and HaaS should always win and thus user can easily catch itself to the trap this way. We should warn users about that.
It is also possible that user just forget about previously activated (thanks to minipot or HaaS inaccessible) redirect and later disable of minipot or HaaS can reveal service users did not intend to reveal.