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nginx - program cheatsheet

isnstall

$ apt-get update
$ sudo apt-get install certbot
$ apt-get install python-certbot-nginx
ref

use

generate dhparams

sudo mkdir /etc/nginx/ssl
sudo openssl dhparam -out /etc/nginx/ssl/dhparam-2048.pem 2048
sudo openssl dhparam -out /etc/nginx/ssl/dhparam-4096.pem 4096
* will take several minutes

control nginx

sudo systemctl stop nginx
sudo systemctl start nginx
sudo systemctl status nginx

test nginx configuration

sudo nginx -t

export DOMAIN_NAME=koad.sh
sudo nano /etc/nginx/sites-available/$DOMAIN_NAME
sudo ln -s /etc/nginx/sites-available/$DOMAIN_NAME /etc/nginx/sites-enabled/$DOMAIN_NAME

obtain a certificate

let certbot obtain a certificate for us and apply the default nginx SSL configuration like follows: --> 

sudo certbot --rsa-key-size 4096 --nginx -d $DOMAIN_NAME

pay attention

when using lets encrypt, be sure to read the output. 

IMPORTANT NOTES:
 - Your account credentials have been saved in your Certbot
   configuration directory at /etc/letsencrypt. You should make a
   secure backup of this folder now. This configuration directory will
   also contain certificates and private keys obtained by Certbot so
   making regular backups of this folder is ideal.

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