Lucid dreams are really interesting phenomena… and super simple to understand! To have a lucid dream is to have a dream, while knowing that you have that dream. In fact, it is to be aware that you are dreaming, hence the name “lucid dreams”.

Let’s Encrypt is a project of the ISRG (Internet Security Research Group), an American non-profit organization (501)(3)(c) which goal is to make SSL/TLS encryption universal, and therefore to offer free SSL/TLS certificates to everyone.

Nginx is a well known HTTP server powering many web sites (like ours) and other web apps (like reverse proxies) that is pretty easy to configure. With its speed and its cost (free!), people who don’t like shared hosting and know how to do things will generally choose to get their own web server and set it up themselves.

DNS over HTTPS is a relatively new concept developed by the Internet Engineering Task Force (IETF) which consists to perform DNS queries over encrypted HTTPS, therefore enciphering the requests.

TLS stands for Transport Layer Security, being a protocol which helps encryption of sensitive content over a network. Initially known as Secure Sockets Layer, or SSL, its goal is to protect clients and servers from eventual attackes and to guarantee transmission authenticity.

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