You can't. FTP doesn't send any header information like http's virtual host information on which site it's for. the only option is to use different ports for different sites.. ftp www.domain/com:10021 ftp www.domain2/com:10022 ftp www.domain3/com:10023 that's the only what I know. Thanks, ____________________________________________ George Vieira Systems Manager georgev@xxxxxxxxxxxxxxxxxxxxxx Citadel Computer Systems Pty Ltd http://www.citadelcomputer.com.au Phone : +61 2 9955 2644 HelpDesk: +61 2 9955 2698 -----Original Message----- From: Sathi [mailto:sathiyan@xxxxxxx] Sent: Wednesday, July 23, 2003 4:06 PM To: Netfilter Mailing List Subject: port forwarding Hello All, I am running squid reverse proxy for 5 different web servers. I want to provide ftp access to clients so that they can update the web page content. As all the host name resolve to the single address i find problem in port forward the ftp request to the correct backend web server. How to make port forward the ftp request to the correct web server using iptables. Regards Sathi