[ydl-gen] vsftpd issues

[boris.lau at sophos.com]

yellowdog-general-bounces at lists.terrasoftsolutions.com wrote on 07/12/2005
17:36:58:

>
> hello there,
>
> i am having a problem with my vsftpd server. i set it up last weekend and
> it was working fine when i connected through the local network. but today
> i had the chance to try it from the outside, and i connected to the
server
> without any problems, but i couldn't retrieve the file list.
>
> when i tried connecting with transmit at first, it tried to use the
> passive mode, but the data connection timed out, so it switched to PORT,
> and that didn't work either.
>
> when i used the terminal's ftp command directly, the same thing happened.
> i connect to the server, pass the authentication, but cannot get retrieve
> the list of files.
>

i had these problems a while ago too, hopefully the following tips would
help.

If your server connect to outside using NAT router, try setting the
pasv_address at your vsftpd.conf to your external ip of the router.

------------------------
pasv_address
    Use this option to override the IP address that vsftpd will advertise
in response to the PASV command. Provide a numeric IP address.
    Default: (none - the address is taken from the incoming connected
socket)
------------------------

it is often that the PASV response address with be your LAN ip from the NAT
translation, which caused problem from outside.

hth
boris

> any suggestions? i feel like it is a firewall issue. the firewall on my
> router is configured to open the port 21 for the linux machine. should i
> do anything else?
>
> thanks a lot for the help.
>
> cheers,
> taylan
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--
Boris Lau
Virus Researcher, Sophos

Tel: 01235 559933
Web: www.sophos.com
Protecting business against viruses, spyware, spam and policy abuse