Linux – How to give execute permissions to Apache2 user and NOT to everyone else

apache-2.2cgilinuxUbuntuuser-permissions

I have Ubuntu Server running and I am setting up a separate directory as a cgi-bin. I have the directory ready and I changed the file for the site. However, to get it to work, I need to change the permissions of the Python script I have in the folder so that Apache can execute it. However, I don't want to give write or execute access to ANYONE other than root, me and Apache. I'm assuming this is possible, but how can it be done?

Best Answer

chown the files to whatever your Apache group is called (Usually www-data) and set permissions to only give user/group permissions:

chown -R www-data:www-data /path/to/cgi-bin
chmod -R 764 /path/to/cgi-bin

That sets it so only the www-data user and group can write the file, and only the www-data user can execute the file, everyone can read.

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You have a few options. If mod_rewrite is switched on, you can use that to rewrite requests to a path in your /cgi-bin/. $_SERVER[] will still contain the original request URI so that you can conditionally perform actions based on the requested path.

Alternatively, if you’re dead set on using .htaccess to enable PHP files to be executed anywhere (which might not even be possible—httpd.conf specifies, via the AllowOverride directive, what .htaccess files can and can't do), then create a PHP file containing

<?php
phpinfo();

and place it in your cgi-bin directory, it will tell you all of the relevant details about that installation of PHP, (which should include the location of the php-cgi executable).

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You need to specify the cgi handler for the file if you do not use ScriptAlias. IN the directory section, add something like

AddHandler cgi-script .cgi

This is what the documentation says:

Any file that has the handler cgi-script will be treated as a CGI script, and run by the server, with its output being returned to the client. Files acquire this handler either by having a name containing an extension defined by the AddHandler directive, or by being in a ScriptAlias directory.

Best Answer

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