aoa, main nay ftp install kia hai apni site k server pe lekn jb main us ftp ko use kr k login ho nay ki koshash krta hu to mujhay ye error aata hai. plz help.

Warning: ftp_connect() [function.ftp-connect]: php_network_getaddresses: getaddrinfo failed: Name or service not known in /home/u670545578/public_html/ftp/includes/filesystem.inc.php on line 53