Recently I was requested to suggest some hardening advices about SSH access to *nix boxes. Now, I like to write down a short guide on this topic. Let’s take a fresh installed FreeBSD server (11.2-RELEASE-p7…

[RFC 8461] SMTP MTA Strict Transport Security (MTA-STS) è un meccanismo che consente ai fornitori dei servizi di posta di dichiarare la loro capacità di ricevere connessioni SMTP garantite da TLS (Transport Layer Security) e…

So, you want to run your own mail server, while someone else holds your beer? Ok, listen, do yourself a favor: please, RTFM, or carefully follow these steps. assign an IP to your SMTP; make…