CentOS Linux OS

Telegram self-signed certificate on CentOS + Nginx

Simply create cert via Openssl as described here: https://core.telegram.org/bots/self-signed after that, configure the nginx : https://www.digitalocean.com/community/tutorials/how-to-create-an-ssl-certificate-on-nginx-for-ubuntu-14-04 jump to step 2… good luck!