Client certs are quite easy to setup. Create a CA cert, sign client certs with it, and allow only clients who have a cert signed by you.
Client cert on Nginx: https://fardog.io/blog/2017/12/30/client-side-certificate-au...
Bonus about client certs: https://drewdevault.com/2020/06/12/Can-we-talk-about-client-...
Client certs are quite easy to setup. Create a CA cert, sign client certs with it, and allow only clients who have a cert signed by you.
Client cert on Nginx: https://fardog.io/blog/2017/12/30/client-side-certificate-au...
Bonus about client certs: https://drewdevault.com/2020/06/12/Can-we-talk-about-client-...