How To redirect subdomain to domain

[SofiaValencia]

Hello Everybody,

I want to redirect my site from without www to www..I have IIS server.
So what I need when user come on my site no error of 'page not found' (i.e. error 404 ) should be occured..
Can you help me? anyone tell..
Thanks in advance

[Niheel]

You will need to make sure you have the IIS rewrite module installed and then you have edit your Web.config file

https://www.iis.net/downloads/microsoft/url-rewrite

In the rewrite section you will have to add something like this

      <rewrite>
             <rules>
                 <rule name="redirect" stopProcessing="true">
                     <match url="^(.*)$" />
                     <action type="Redirect" url="https://domain.com/{R:0}" appendQueryString="true" />
                     <conditions>
                         <add input="{HTTP_HOST}" pattern="^www.domain.com$" />
                     </conditions>
                 </rule>
             </rules>
         </rewrite>

Here's the Microsoft documentation for using the URL rewrite module.

https://docs.microsoft.com/en-us/iis/extensions/url-rewrite-module/using-url-rewrite-module-20