Configure website in Apache2

The following example contains the Apache2 server configuration file for the tech-notes.net site:

<VirtualHost *:80>
  ServerName tech-notes.net
  ServerAlias ​​www.tech-notes.net
  DocumentRoot /var/www/tech-notes

  LogLevel warn
  ErrorLog /var/log/httpd/tech-notes_error.log
  CustomLog /var/log/httpd/tech-notes_access.log combined

  <Directory /var/www/tech-notes>
    Options +ExecCGI Indexes FollowSymLinks MultiViews
    AllowOverride All
    order allow,deny
    allow from all
  </Directory>
</VirtualHost>

Explanations:

• ServerName - site domain name.
• ServerAlias - site alias. You can specify multiple
• DocumentRoot - root folder where site files are located
• LogLevel - determines the number of messages that will be written to the log file Available values: debug, info, notice, warn, error, crit, alert, emerg. In the case of using debug log the file will contain the largest number of entries with information about requests, emerg - the smallest number of entries/information.
• ErrorLog - path to error log. If not specified, all errors will be logged to a standard file (/var/log/httpd/error_log or /var/log/apache2/error.log).
• CustomLog - log on demand. It takes two arguments - the path to the file and the log type (in the example, combined - can be used for visit statistics)

From the start, the following log file formats are declared in the Apache config:

LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined
LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %O" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent

You can create your own.

Between the ** and ** tags, you can specify parameters specific to a particular directory (in the example - /var/www/tech-notes)

• Options - options. The + sign - turns on forcibly, - turns off:
• ExecCGI - Allows execution of cgi scripts. Must be enabled if php is running in cgi mode.
• Indexes - gives additional options for catalog indexing (not to be confused with indexing by search engines).
• FollowSymLinks - Enables support for symbolic links in the directory.
• MultiViews is an optional parameter. Its quirk is that if a request comes in for the /some/dir/foo directory, and MultiViews is enabled for /some/dir, and the directory /some/dir/foo does not exist, then the server will look for files named foo.* in the directory /some/dir/.

Using the Alias directive, you can connect a directory to the site that is not in the site’s home directory. For example phpmyadmin:

Alias ​​/phpmyadmin /usr/share/phpmyadmin

If this line is present in the host config, then when you open http://www.tech-notes.net/phpmyadmin, you would get into the database management interface.

This is an example of https/ssl host settings on a CentOS server:

<VirtualHost *:443>
	ServerName tech-notes.net
	ServerAlias ​​www.tech-notes.net
	DocumentRoot /var/www/tech-notes

	SSL Engine on
	SSLCertificateKeyFile /etc/ssl/private/tech-notes.key
	SSLCertificateFile /etc/ssl/certs/tech-notes.crt
	SSLCACertificateFile /etc/ssl/private/ca-bundle.crt

	LogLevel warn
	ErrorLog /var/log/httpd/tech-notes_ssl_error.log
	CustomLog /var/log/httpd/tech-notes_ssl_access.log combined

	<Directory /var/www/tech-notes>
		Options +ExecCGI Indexes FollowSymLinks MultiViews
		AllowOverride All
		order allow,deny
		allow from all
	</Directory>
</VirtualHost>

In case of Debian/Ubuntu the host’s ssl settings are recommended to be placed between the tags <IfModule mod_ssl.c> and </IfModule>

If you have several sites spinning on the same ip address, you need to add the following to ports.conf or httpd.conf (apache2.conf):

NameVirtualHost *:80
NameVirtualHost *:443