Home/ Questions/Q 8290251
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-08T12:44:55+00:00

I am wondering about a certain server setup. Lets say I have a web

  • 0

I am wondering about a certain server setup.

Lets say I have a web server running on my local network, which is accessible using an url such as http://www.example.com from within and also outside the network.

I would like my PHP website to be able to determine if a request comes from within the internal LAN or from the outside. I doubt that this will be possible using the IP address as the request will look as if it is coming from a public IP address, and not the internal one 192.168.x.x. Also the public IP might change from time to time.

Would this be possible, and how could i achieve this in PHP?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    If your requests comes from inside the lan then the $_SERVER[‘REMOTE_ADDR’] will be from a private ip address group, if if comes from outside the lan it will not.
    Unless you have a poorly configured internal network, but this will probably not be the case.

    look here for the correct address groups
    http://en.wikipedia.org/wiki/Private_network

    If your internal dns server resolves example.com to the public ip then the requests will appear to come from the public ip as well, so if this is the case you also know that the request came from inside.

    • 0