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mrroot5/install-letsencrypt-ubuntu.md

Created January 20, 2022 11:47
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Install Letsencrypt cert. into a debian/ubuntu. Keywords: letsencrypt, ubuntu, ubuntu letsencrypt
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install-letsencrypt-ubuntu.md

Intro

How to set up letsencrypt on a debian/ubuntu machine. Step by step:

Update and install Certbot

$ apt update
# for apache-using web server
$ apt install certbot python3-certbot-apache
# for nginx-using web server
$ apt install certbot python3-certbot-nginx

Get the certificate

# for apache-using web server
$ certbot --apache -d example.com -d www.ejemplo.com -d ...
# for nginx-using web server
$ certbot --nginx -d example.com -d www.ejemplo.com -d ...

If the certificate is unable to find a vhost with the ServerName specified, we need to choose the one with https protocol.

Copy the certificate

Copy into a backup file the file in /etc/apache2/sites-available/default-ssl.conf and edit it in order to aim at the recently issued certificate files changing the following lines

SSLCertificateFile /etc/letsencrypt/live/server-name/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/server-name/privkey.pem
Include /etc/letsencrypt/options-ssl-apache.conf

With this configuration, the issued certificate should be trusted and on use by now.

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