Allow only certain Ip address to access website

Is this possible ?

I only want to allow certain Ip address to access a website.

 

yes, you need to specify the ip's in your .htaccess file.

 

ok i just wiped up and tested this .htaccess file:

Order Deny,Allow
Allow from PUT IP HERE
Deny from All

HTML:

And to add more just copy the allow line and change the IP

 

try this, just change that IP to yours:

if($_SERVER['REMOTE_ADDR']!="xx.xx.xx.xx")
die("you don't have access to this web");

 

this does work.. but is it possible to put a range of ip's like ... 64.0.0.1 to 64.0.0.254 ??

 

if($_SERVER['REMOTE_ADDR']!="64.0.0.[1-254]")
die("you don't have access to this web");

PHP:

try that

 

For ranges, you need to get help from ip2long(). First you will convert your starting end ending ips to long using ip2long() and then convert IP in question to long and then compare it.

 

Yes it is 100% possible, nothing is impossible in programming world

 

tried this but still i dont work....

 

Might not be the best way to go about it, but it does work ...

<?php
/**
 * $allowed should contain all the ranges that you will allow
 * 
 * note: 
 * 		valid: 192.168.0.1-255
 * 		invalid: 192.1-255.0.1-255
 * 
 * 
 */
$allowed = array(
	'192.168.0.1-255',
	'127.0.0.1-255'
);	
/** STOP EDITING STOP EDITING STOP EDITING STOP EDITING STOP EDITING STOP EDITING STOP EDITING STOP EDITING **/
$continue = false ;

function get_range_from_string( $string )
{
	if( ( $chunks = explode( ".", $string ) ) )
	{
		foreach( $chunks as $pos => $chunk )
		{
			if( strpos( $chunk, '-' ) !== false )
			{
				if( list( $start, $end ) = explode( '-', $chunk ) )
				{
					for( $i = $start; $i <= $end; $i++ )
					{
						for( $j = 0; $j <= 3; $j++ )
						{
							if( $pos == $j )
							{
								$parts[$j] = $i;
							}
							else $parts[$j] = $chunks[$j];
						}
						$ips[ ] = implode( ".", $parts );
					}
				}
			}
		}
		return $ips ;
	}
	else return array( $string );
}

foreach( $allowed as $range )
{
	foreach( get_range_from_string( $range ) as $check )
	{
		if( $_SERVER['REMOTE_ADDR'] == $check )
		{
			$continue = true ;
		}
	}
}

if( !$continue )
{
	die( sprintf( "<font color=red>The address %s is not allowed to browse this website</font>", $_SERVER['REMOTE_ADDR'] ) );
}

/** IF EXECUTION GETS TO HERE THEN THE VISITOR IS ALLOWED **/
?>

PHP:

 

You can stop Ip address by putting ban list but you cannot stop all other IP and allow some.

 

// Get IP
function get_ip(){
	$ipParts = explode(".", $_SERVER['REMOTE_ADDR']);
	if ($ipParts[0] == "165" && $ipParts[1] == "21") {    
    	if (getenv("HTTP_CLIENT_IP")) {
        	$ip = getenv("HTTP_CLIENT_IP");
        } elseif (getenv("HTTP_X_FORWARDED_FOR")) {
            $ip = getenv("HTTP_X_FORWARDED_FOR");
        } elseif (getenv("REMOTE_ADDR")) {
            $ip = getenv("REMOTE_ADDR");
        }
    } else {
       return $_SERVER['REMOTE_ADDR'];
   	}
   	return $ip;
}

$ip = get_ip(); // Example 64.0.0.XXX
$ipsubs = explode('.',$ip);
for($x=0;$x<count($ipsubs)-2;$x++){ $final .= '.'.$ipsubs[$x];}

if($final != '64.0.0'){ die('invalid address');} //64.0.0.
if($ipsubs[count($ipsubs)-1] >= 0 && $ipsubs[count($ipsubs)-1] <= 100){ die('invalid range');}

PHP:

Peace,