ftp sendport

[Charles_11]

Hello,

We have an ftp system here which handles many uses successfully. Most user use an automated script to send/retrieve data. One of our users has several systems which he sends from. Most work without incident, but one fails with a 425 can't build connection error. (this was posted on a seperate messages,thanks for the responses). I spoke with the SA there and went through is script line by line and found that if he doesn't use the sendport command (he doesn't know why it's in his script) it works fine. This has been in the script since 1996 and worked without problems, our system is the same L box for almost 2 years, and other sites are still working with it.

Any suggestions or explainations on why this is? We're thinking one of our firewalls doesn't like it. Can anyone explain exactly what sendport does within ftp?

Thanks,
charlie

[Mark Greene_1]

See the man page for ftp, which has the full explanation. Given that this is a toggle, what you are seeing is that the ftp that fails is on the server whose ftp implementation is *not* broken; i.e., it is a good thing that you don't need the sendport command in that script. The bigger question then is why do you need it for the others.

HTH
mark

[Jose Mosquera]

Hi,

Pls check this:
http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x17510fe6d0f7d61190050090279cd0f9,00.html

Rgds.