Enable suEXEC2015/06/03

	Normally executing user for CGI is Apache's user, but it's possible to execute CGI with other users by using suEXEC.
[1]	Enable suEXEC.

root@www:~#

aptitude -y install apache2-suexec-custom

root@www:~#

a2enmod suexec

Enabling module suexec.
To activate the new configuration, you need to run:
  service apache2 restart

[2]	For example, configure to enable suEXEC under the directory "debian". The site settings is the one created in Virtual Hostings section.

root@www:~#

vi /etc/apache2/suexec/www-data

# add to the head of a file: the directory for suEXEC

/home/debian/public_html

/var/www
public_html/cgi-bin

root@www:~#

vi /etc/apache2/sites-available/virtual.host.conf

<VirtualHost *:80>
ServerName www.virtual.host
ServerAdmin webmaster@virtual.host
DocumentRoot /home/debian/public_html
ErrorLog /var/log/apache2/virtual.host.error.log
CustomLog /var/log/apache2/virtual.host.access.log combined
LogLevel warn

# add: let debian a executing user

SuexecUserGroup debian debian

</VirtualHost>

root@www:~#

systemctl restart apache2

[3]	Make sure a test page is shown normally with changing parmission to 700.

debian@www:~$

mkdir public_html

debian@www:~$

chmod 755 public_html

debian@www:~$

vi public_html/suexec.cgi

#!/usr/bin/perl

print "Content-type: text/html\n\n";
print "<html>\n<body>\n";
print "<div style=\"width: 100%; font-size: 40px; font-weight: bold; text-align: center;\">\n";
print "suEXEC Test Page";
print "\n</div>\n";
print "</body>\n</html>\n";

debian@www:~$

chmod 700 public_html/suexec.cgi

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