Slow FTP initial connection through XP firewall

Slow FTP initial connection through XP firewall

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Subject Author Date
Slow FTP initial connection through XP firewall JasonD 08-23-2006
Posted by =?Utf-8?B?SmFzb25E?= on August 23, 2006, 12:15 pm
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I am running a XP pro machine with the windows firewall enabled. I want to
regularly FTP or RCP a small file from this XP machine to a single Linux
machine, but when I initiate the connection, there is around a 30 second lag
before I am prompted with a request for a username (using FTP). When I turn
off the XP firewall, there is no 30 second lag. I've tried opening all the
FTP ports on my XP firewall, but it's not fixing the problem. I'm not
familiar with how this is working, but it seems that when I try to initiate a
connection to this Linux machine, the Linux machine then tries to talk back
to the XP machine, but is being blocked by the windows firewall. Is there
some port that I can open up (just to this Linux machine) that will allow
this "reverse connection"?

Posted by =?Utf-8?B?QmVuIE1pbGxlcg==?= on August 26, 2006, 12:26 pm
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Jason,

Sure, you can open a port. Just make sure you are very careful when
defining the scope.

This link will help you configuring this:
http://www.microsoft.com/technet/security/smallbusiness/prodtech/windowsxp/cfgfwall.mspx#EWEAC

However, from what you are describing, I don't think it is a port problem.
If you are eventually prompted for username and password, then the connection
has successfully been established.

What anti-virus do you have installed? I have heard of some issues
revolving around FTP, XP SP2 and McAfee Anti-Virus, but cannot find the link.

You might want to also have a look at this link:

http://support.microsoft.com/kb/842242

Hope this helps!

-Ben


"JasonD" wrote:

> I am running a XP pro machine with the windows firewall enabled. I want to
> regularly FTP or RCP a small file from this XP machine to a single Linux
> machine, but when I initiate the connection, there is around a 30 second lag
> before I am prompted with a request for a username (using FTP). When I turn
> off the XP firewall, there is no 30 second lag. I've tried opening all the
> FTP ports on my XP firewall, but it's not fixing the problem. I'm not
> familiar with how this is working, but it seems that when I try to initiate a
> connection to this Linux machine, the Linux machine then tries to talk back
> to the XP machine, but is being blocked by the windows firewall. Is there
> some port that I can open up (just to this Linux machine) that will allow
> this "reverse connection"?

Posted by =?Utf-8?B?SmFzb25E?= on August 28, 2006, 12:17 pm
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Ben

Thanks for the reply. I use McAfee anti-virus. I may search up on that.
The pecular thing is that when I disable the XP firewall completely, I have
no delay.

Anyways, I've found another way around this using PuTTY, so I probably won't
look too hard into it.

Thanks again.

-Jason


"Ben Miller" wrote:

> Jason,
>
> Sure, you can open a port. Just make sure you are very careful when
> defining the scope.
>
> This link will help you configuring this:
>
http://www.microsoft.com/technet/security/smallbusiness/prodtech/windowsxp/cfgfwall.mspx#EWEAC
>
> However, from what you are describing, I don't think it is a port problem.
> If you are eventually prompted for username and password, then the connection
> has successfully been established.
>
> What anti-virus do you have installed? I have heard of some issues
> revolving around FTP, XP SP2 and McAfee Anti-Virus, but cannot find the link.
>
> You might want to also have a look at this link:
>
> http://support.microsoft.com/kb/842242
>
> Hope this helps!
>
> -Ben
>
>
> "JasonD" wrote:
>
> > I am running a XP pro machine with the windows firewall enabled. I want to
> > regularly FTP or RCP a small file from this XP machine to a single Linux
> > machine, but when I initiate the connection, there is around a 30 second lag
> > before I am prompted with a request for a username (using FTP). When I turn
> > off the XP firewall, there is no 30 second lag. I've tried opening all the
> > FTP ports on my XP firewall, but it's not fixing the problem. I'm not
> > familiar with how this is working, but it seems that when I try to initiate
a
> > connection to this Linux machine, the Linux machine then tries to talk back
> > to the XP machine, but is being blocked by the windows firewall. Is there
> > some port that I can open up (just to this Linux machine) that will allow
> > this "reverse connection"?

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