External

external nslookup that displays only the resolved address.

Type:	code fragment
Added by:	kurth
Entered:	11/09/2000
Last modified:	01/12/2000
Rating:	- (fewer than 3 votes)
Views:	8512

This code displays the remote address of the machine calling the page. Uses nslookup and grep.

<?php
 /*

                            Written By Kurth Bemis (kurth@usaexpress.net)

                            

                            This snippet uses nslookup and grep to retrieve the fully resolved remote address and display it.


                            

                            Mail me if you have any problems

                            

                            ~kurth

                            

                            */

                            
 $runext = exec("nslookup $REMOTE_ADDR | grep ame:", $output, $error); 

                            

                            if (!$error){

                                list(,$run) = each($output);

                                $display = substr ("$run", 6);

                                print "Remote Address: $display <BR>";

                            }

                            if ($error){ 

                              echo "Unix error code: $error<BR>n"; 

                              exit; 

                            } 

                            
 ?>

Usage Example

See the example

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