Hi,

I do have my website, which is around 3 years old, the website is having almost 500 to 600 pages, I do want to customize 404 error pages.

You can use .htaccess file for this.

will it be easy?

It is just made up of a few simple instructions in a text file.

Do you allow, users to access .htaccess.

Our Apache web server supports .htaccess.

What I can do with this .htaccess file?

You can protect your folders by giving password , redirecting users automatically, create custom error pages, can change your file extensions, banning users with certian IP addresses, only allowing users with certain IP addresses, stopping directory listings and using a different file as the index file. These are few of the advantages of using .htacess file.

And how can I create this file?

You can download the .htaccess file from server and then add your code to the beginning.

You can use text editor Notepad for writing this file, and save the file as:
“.htaccess” (including the quotes). If you are not able to save this file you can save it with the name htaccess.txt and then upload it to the server. Once you have uploaded the file you can then rename it using an FTP program.