Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.
How many worker_processes should I use in Nginx?
Answer:
In the Nginx configuration (nginx.conf), the default worker_processes is 1.
e.g.
worker_processes 1;
However, as nowadays most servers are multi-core/multi-processor machine, it is a waste to only use 1 worker process.
The recommended worker_processes is equal to the number of CPU cores, e.g. if you have a dual Quad Core server, you should set to 8.
worker_processes 8;
Remove default Debian/Ubuntu default Apache welcome page
Answer:
To remove the Apache default welcome page under Debian/Ubuntu,
1. Remove the welcome page configuration
# a2dissite default2. Restart Apache
# sudo /etc/init.d/apache2 restart That's all.
How to prevent PHP script from running in Apache
Answer:
If you have a PHP script and want it run under in command line only, not in the web server context, you can use the following method.
<?php
if ( php_sapi_name() != "cli" ) {
print "This script must be run from the command line\n";
exit();
}
Enable Server Side Includes in Apache
Answer:
Server Side Includes (SSI) is a simple mechanism that allow you to add dynamic elements into your HTML file without playing with complicated scripting languages such as PHP or Perl.
To enable it under Apache, add the following lines to the Apache configuration (httpd.conf)
<IfModule mod_include.c>
AddType text/html .shtml
AddOutputFilter INCLUDES .shtml
</IfModule>
Restart Apache to take effect
# apachectl -k graceful
Now all yout .shtml files be will parsed and SSI related tags will be evaluated.
To see what SSI directives you can use, check out the following document:
How to check which mime types are supported by your Debian/Ubuntu
Answer:
The /etc/mime.types file is the system-wide rules which defined for mapping filename suffices to mime types. Your Apache on Debian based Linux will read this file and set the correct Content-type header for these files when serving to users.
# cat /etc/mime.types