i've writed some Php code that lookup for domain (whois) but it fails !!this is some of my code :function checkdomain($server,$domain){global $response;    $connection = fsockopen($server,43);    fputs($connection, domain  . $domain . \r\n);    while(!feof($connection)){        $response .= fgets($connection, 4096);    }    fclose($connection);}checkdomain(whois.crsnic.net,www.example.com);the code work on my localhost ( apache,php,mysql, OS -> Win XP ) but when i uploaded it to my host (Linux) it failed. and i always see the Below Error/message :Warning: fsockopen() [function.fsockopen]: unable to connect to whois.crsnic.net:43 (Network is unreachable) in /home/hamid0011/public_html/whois/whois.php on line 37what should i do ? is this my host's problem or whois server ( but it work in localhost ) or my code ?TNX
fsockopen() error : Network is unreachable port 43 in php
php
Your host probably has a firewall which blocks port 43. I would contact them to check if this is the case.