꼬장

$_SERVER['REMOTE_ADDR']

function get_client_ip()
{
    $ipaddress = '';
    if (getenv('HTTP_CLIENT_IP'))
        $ipaddress = getenv('HTTP_CLIENT_IP');
    else if(getenv('HTTP_X_FORWARDED_FOR'))
        $ipaddress = getenv('HTTP_X_FORWARDED_FOR');
    else if(getenv('HTTP_X_FORWARDED'))
        $ipaddress = getenv('HTTP_X_FORWARDED');
    else if(getenv('HTTP_FORWARDED_FOR'))
        $ipaddress = getenv('HTTP_FORWARDED_FOR');
    else if(getenv('HTTP_FORWARDED'))
        $ipaddress = getenv('HTTP_FORWARDED');
    else if(getenv('REMOTE_ADDR'))
        $ipaddress = getenv('REMOTE_ADDR');
    else
        $ipaddress = 'UNKNOWN';
    return $ipaddress;
}

출처 : gocoder.tistory.com/664

apache 에서 특정 ip 접속 제어를 하기위해 httpd.conf 또는 httpd-vhosts.conf 수정

<VirtualHost *:80>

    ServerName xxx.xxx.xxx.xxx  ##자신의 IP주소

    <Location>

        Order deny, allow

        Deny from all

    </Location>

</VirtualHost>