can't access ftp site behind a proxy server

kyiu · 05-10-2002, 03:13 AM

I can't access to some ftp site (eg:RH ftp site) behind a Squid proxy. What port# does RH ftp site uses?

Ken

Spot · 05-10-2002, 04:58 PM

By default, ftp uses port 21 for login, and port 20 for data. If running in PASV compliant, it'll use ports in the temp range (roughly port 1024-5000) for sending data. You need your proxy server to be able to translate that in order to be able to login.
Is your client running in PASV mode? If not, make sure it is, if it is already, try setting it not to be...that might get you in.

kyiu · 05-11-2002, 04:45 AM

The proxy is Squid. What is PASV? How do i tell the Squid server to do that?

Spot · 05-13-2002, 03:24 AM

Originally Posted by kyiu

The proxy is Squid. What is PASV? How do i tell the Squid server to do that?

I can't tell you if squid processes PASV ftp by default or not, you'll have to consult the docs. My last reply had a basic breakdown on how PASV works, other then that, take a look at some RFCs for more detailed info. Your ftp client should have the option to use PASV or not..if it doesn't, look into a new client.