Tag Archives: Certificates

mkcert – Simple Localhost Certs

Oftentimes I’m developing something locally and I need an SSL Certificate.

I’m too cheap to buy a valid SSL cert for a subdomain like “dev.nickvsnetworking.com” and often the domain changes based on what I’m doing,

LetsEncrypt is great, but requires your server to be public facing and be a web server, which for dev stuff isn’t really practical,

Enter mkcert – a tool that allows you to generate valid SSL certificates on your machine for any domain, the catch is that it’s only on your machine.

I’m working on a WebSocket platform at the moment, which requires an SSL certificate.

So I set an entry in my hosts file to point “webrtc” to the IP of one of the machines,

I then generated the cert on my local machine,

mkcert -install webrtc 

Which outputs the certificate and private key, which I copied it onto the server I’m working on, twiddled some knobs in Apache2 and presto, valid cert!

The downside is of course anyone else going to this site would see the cert as invalid, but as it’s just me, it doesn’t matter!

You can get Mkcert from GitHub.