> When I connect to the QNX ftp server it takes 20 seconds before I get the 
> login prompt.  Looking at the network trace I see it is trying to look up the 
> client's DNS name.  Looking at the ftp documentation and code I see now way to
>  turn this off.  Is there a way to turn this off?

Make sure /etc/resolv.conf is empty.

Hi Jared:

Before I dig in, is this with the io-net network stack or io-pkt?  Ftpd
for io-pkt is a completely new port so the behaviour of the two may be
different.

I suspect that it's io-pkt given that you're looking at the source.  I
think that what needs to get done is that "no user / no password"
results in "anonymous : anonymous"  since you MUST have a user name of
some sort in order to make sure that access permissions get assigned
correctly.

	Robert.

-----Original Message-----
From: Jared Roundy [mailto:jroundy@zebra.com] 
Sent: Wednesday, July 02, 2008 4:51 PM
To: technology-networking
Subject: ftpd: DNS lookup & anonymous lookup

When I connect to the QNX ftp server it takes 20 seconds before I get
the login prompt.  Looking at the network trace I see it is trying to
look up the client's DNS name.  Looking at the ftp documentation and
code I see now way to turn this off.  Is there a way to turn this off?

We are moving to qnx but need the option of being backward compatible
with our old systems.  One of the things we need to support is ftp login
to a guest account without a user name, and no password prompt.
Looking at the documentation & code I see this isn't a current option.
When I try it I get the error:
"500 'USER ':command not understood".
Wanting to see how much of a change it would be to support this I tried
changing cmdtab[] in file ftpcmd.y to list USER as a ZSTR1, but I still
get the same error and don't make it to the user() in ftpd.c (where
other changes would be needed).  Is there some other location that needs
to be changed to let the request make it to user() in ftpd.c?  Is there
any plan to add a configuration parameter to allow an empty user name
login?


_______________________________________________
Technology
http://community.qnx.com/sf/go/post9961

On Wed, Jul 02, 2008 at 04:50:45PM -0400, Jared Roundy wrote:
> When I connect to the QNX ftp server it takes 20 seconds before I get the login prompt.  Looking at the network trace 
I see it is trying to look up the client's DNS name.  Looking at the ftp documentation and code I see now way to turn 
this off.  Is there a way to turn this off?

I added a -n option to ftpd to prevent this.  Still thinking
about the other issue.

Enjoy.

-seanb