Does anyone use nolisting on their domains? Ie set the primary MX that is always unavailable. If so, how much does it delay email?

Does anyone know any cheap inbound mail relay providers? Ie somewhere that I can set my MX records to them, and pass it on to my mail server. Preferably with some spam filtering too.

Is there a way to figure out 95th percentile of bandwidth usage using ? I can't seem to figure out how

This might be a very obvious question.... but when running on , what should worker_processes be set to? As far as I can tell from googling, nginx isn't cgroup aware, so auto wouldn't work.

Does anyone know of an open source WAF appliance that is idiot friendly and potentially with a graphical interface?

I have tried ModSecurity / NAXSI in the past, but tbh I always found they needed a crap load of maintenance all the time.

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