Ngrok is a fantastic tool for creating a secure tunnel from the public web to a machine behind NAT or a firewall. Sadly, it costs money and it’s proprietary. If you’re a developer, odds are that you’re already renting a server in the public cloud, so why not roll your own ngrok? It turns out that you can do it using free, off-the-shelf tools, with no sophisticated scripting required! In this article, I’ll show you how.
HTTP Response headers are name-value pairs of strings sent back from a server with the content you requested. They are typically used to transfer technical information like how a browser should cache content, what type of content it is, the software running on the server and much, much more. Increasingly, HTTP Response headers have been used to transmit security policies to the browser. By passing security policies back to the client in this fashion, hosts can ensure a much safer browsing experience for their visitors and also reduce the risk for everyone involved. Let's take a look at some more security based headers.
mailcow: dockerized is based on Postfix, Dovecot, Nginx, PHP, MariaDB, Rspamd, Rmilter and more!