GNU/Linux Desktop Survival Guide by Graham Williams
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Apache Web Server

20201017 Installing a web server begins with installing apache2:

$ wajig install apache2

It is also installed as part of the LAMP (Linux/Apache/MySQL/PHP) suite:

$ wajig install lamp-server^

Once installed visit the website via its domain name or as localhost. Debian Apache provides a default web page at http://localhost/ with the actual page being sourced from /var/www/html/index.html. This is the starting point to creating a web site using unencrypted communications as indicated by http:.

Secure communications to the web server is deployed using SSL to encrypt all communications from a browser to the server (recognised with the https: prefix). Enable the ssl module in apache2, configure it and obtain a free SSL certificate from letsencrypt using certbot to deploy the certificate:

$ wajig install apache2 openssl ssl-cert
$ sudo a2enmod ssl
$ sudo a2ensite default-ssl
$ sudo snap install core; sudo snap refresh core
$ sudo snap install --classic certbot
$ sudo ln -s /snap/bin/certbot /usr/bin/certbot
$ sudo certbot --apache
  Enter email address
  Please read the Terms of Service
  Please enter in your domain names
$ sudo certbot renew --dry-run
$ wajig restart apache2

The certificate will be automatically updated through a timer.

$ systemctl list-timers