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today i want to address a topic that has given me a headache for a long time since i started running my home lab because when you set up any self-hosted services like a proxmox server an xcloud server or any other web application and you open it your browser always warns you that your connection isn't private and i know what most people will do now just click on advanced and proceed and hey awesome everything works right we could just move on and don't care about it anymore right not really if you want to do it right and secure your web interfaces and applications in the network correctly you should get your ssl certificates right that's why in this video i want to explain what self-signed certificates are why it's so important to configure them properly and how you can very easily do this in your internal network without let's encrypt without any additional software and without the need for a public dns name [Music] before we can do this and start generating self-signed certificates let's also talk about ssl certificates in general and why we need them i will try to make it short because we have a lot of stuff to cover today so it might become a longer video but some high level understanding of ssl and tls is absolutely necessary to know in it and it is a perfect practice to learn it by the way if you would like to learn more about topics like this i might also do more videos in the future about network protocols and security so why not subscribe to the channel and like the video that would really help me out okay back to ssl certificates an ssl certificate is part of the tls protocol and it has two main goals so first is encrypting the connection and second validating trust between the client and the server both are vital for the secure web as we know it today so without ssl certificates there wouldn't be https and you couldn't really secure browse any website today nearly all websites operate on the https protocol and are protected with ssl certificates that's a good thing you can see it in your browser when you open a website so there you might have noticed a small lock icon in front of your address bar which tells you that the connection is secure this also shows that the website is using an encryption with https and you can trust the issuer of the ssl certificate to understand how this works we need to first look inside an ssl certificate and find out what it contains so ssl certificates are written in the so called x 509 standards this is a format for defining public key certificates all ssl certificates have a public key that the client can use to send encrypted messages to this server if you have worked with public key cryptography before for example in ssh you...