Apache redirect domain.com to www.domain.com

Posted on in Categories , , , , , , , , last updated June 26, 2007

Q. What’s the best way to redirect domain.com to www.domain.com on the url address bar whenever someone omits or skip the www from domain.com? My site can be reached by two different URLs. For example http://domain.com/about/us.html and http://www.domain.com/about/us.html

How do I do configure Apache web sever vps for this task?

A. Apache (web server) 301 redirect is the most efficient and search engine friendly method for webpage redirection. You can place following code Apache’s httpd.conf vhost section or in .htaccess file.

$ vi .htaccess
Append following config code:

RewriteEngine on
RewriteCond %{HTTP_HOST} ^domain\.com
RewriteRule ^(.*)$ http://www.domain.com/$1 [R=permanent,L] 

Save and close the file. Above code will redirect users to www.domain.com url.

Tweaking php For Maximum Execution Time For Scripts

Posted on in Categories , , , , , last updated November 10, 2010

I‘ve been trying to migrate my webblogs using Wordpress inbuilt import facility. I’ve exported current blog as a xml file and downloaded to my desktop. Next I navigated to my new blog’s admin area and clicked on Manage > Import. However import failed after importing 50-60% posts only.

I went through Apache and PHP log files and I realized that the script was timed out. How do I fix this problem under Linux / UNIX?

Apache restrict access based on IP address to selected directories

Posted on in Categories , , last updated October 30, 2007

Apache web server allows server access based upon various conditions. For example you just want to restrict access to url http://payroll.nixcraft.in/ (mapped to /var/www/sub/payroll directory) from network (within intranet).

Apache provides access control based on client hostname, IP address, or other characteristics of the client request using mod_access module.

Open your httpd.conf file:
# vi /etc/httpd/conf/httpd.confLocate directory section (for example/var/www/sub/payroll) and set it as follows:
<Directory /var/www/sub/payroll/>
Order allow,deny
Allow from
Allow from 127

  • Order allow,deny: The Order directive controls the default access state and the order in which Allow and Deny directives are evaluated. The (allow,deny) Allow directives are evaluated before the Deny directives. Access is denied by default. Any client which does not match an Allow directive or does match a Deny directive will be denied access to the server.
  • Allow from192.168.1.0/24: The Allow directive affects which hosts can access an area of the server (i.e. /var/www/sub/payroll/). Access is only allowed from network and localhost (

Save file and restart apache web server:
# /etc/init.d/httpd restart

See also