Please add Postgres section

[mariusa]

eg https://dba.stackexchange.com/questions/228282/allow-access-to-specific-user-only

Thanks!

[imthenachoman]

I will look at this as time permits. I haven't had much time to maintain this how to guide. I had always hoped the wider community would contribute. I'll look into Postgres and add something.

[mariusa]

Thank you. I plan to setup a server soon, and will submit edits where I find it might be better. (entire applicable guide)