Operating Systems > Linux and UNIX
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Master of Reality:
do broswers use active or passive FTP??
One of the types of FTP wont work through my server, its whatever type command line ftp things use. My broswer can dl from ftp just fine but ncftp and wget cant get anything from ftp servers. Is there any way to get wget to work like the same type of FTp as broswers?? I didnt see anything like that in the man page for wget.
voidmain:
Passive connections mean the client does all of the initiation of the connection. Sometimes passive connections are required if you are behind a firewall. Non-passive connections are the initial connection is made by the client for login and the data channel (udp) connection is initiated by the server back to the client.
I believe wget normally uses non-passive FTP and according to the wget man page it says to get passive FTP you just add the "--passive-ftp" parameter.
The man page for "ncftpget" says use "-F" to force passive connections. "passive" is the default but if passive times out it normally falls back to normal mode.
If you are using ncftp interactively you can:
ncftp> set passive on
But are you sure this is your problem? Could it be that you have set up your firewall to not allow FTP traffic and you have your web browser configured to use your proxy server for FTP as well as HTTP traffic? I don't have any problems connecting directly through my ipchains firewall for FTP. You can also set "wget" to go through your proxy either by using command line parameters or configuring it in your .wgetrc file (make a copy of /etc/wgetrc and put it in your home directory as .wgetrc and modify).
[ September 30, 2002: Message edited by: void main ]
Master of Reality:
i tried wget through my proxy, this is what makes me think that it may need to be in passive mode.... and it started working with wget using passive mode.
[ September 30, 2002: Message edited by: The Master of Reality / Bob ]
voidmain:
How did you try and get wget to go through your proxy? Could you give me the command line you used, and the error message it produced? And what is your "ftp_user" variable set to in your squid.conf, that is, could the FTP server be rejecting your anonymous password that you have configured in Squid?
Master of Reality:
it worked with passive mode. My squid FTP user is anonymous.
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