rsync - Nov 2004 - Cygwin rsync and the Window XP SP2 firewall

Hi!

We want to use cygwin rsync to implement an autoupgrade feature for our 
  software. For that we invoke rsync to connect to an anonymous rsync 
server on the default rsync port (873). This works just fine but there 
is one problem. When rsync is invoked the Windows firewall displays a 
message like this:

"To help protect your computer, Windows Firewall has blocked this 
program from receiving unsolicited information for the Internet or a 
network" (see http://support.microsoft.com/kb/875353/en-us)

Despite this message rsync'ing works just fine.

This message is usually displayed only if an application opens a server 
socket listening for inbound connections on a network interface. Opening 
a server socket on the loopback interface does not provoke this behavior.

What does rsync do to provoke this message?
How can I prevent this message from being displayed?

Please cc me on any replies as I am not subscribed to the list. Thanks 
for your help!

Version details:
Windows version: XP SP 2 [Version 5.1.2600]
rsync version: rsync  version 2.6.3  protocol version 28
cygwin version (uname -r): 1.5.12(0.116/4/2)


Best regards,


Hans
-- 
Hans Kratz
Omnicore Software
http://www.omnicore.com

The windows firewall show this message.
Because rsync client try to establish connection using port 873.

You can define rsync client and server to use other port like port 80.

Regards,

Milutin Voinivich
http://www.NasBackup.com/

----- Original Message ----- 
From: "Hans Kratz" <kratz@omnicore.com>
To: <rsync@lists.samba.org>
Cc: "Hans Kratz" <kratz@omnicore.com>
Sent: Monday, November 22, 2004 12:16 PM
Subject: Cygwin rsync and the Window XP SP2 firewall

> Hi!
> 
> We want to use cygwin rsync to implement an autoupgrade feature for our 
>   software. For that we invoke rsync to connect to an anonymous rsync 
> server on the default rsync port (873). This works just fine but there 
> is one problem. When rsync is invoked the Windows firewall displays a 
> message like this:
> 
> "To help protect your computer, Windows Firewall has blocked this 
> program from receiving unsolicited information for the Internet or a 
> network" (see http://support.microsoft.com/kb/875353/en-us)
> 
> Despite this message rsync'ing works just fine.
> 
> This message is usually displayed only if an application opens a server 
> socket listening for inbound connections on a network interface. Opening 
> a server socket on the loopback interface does not provoke this behavior.
> 
> What does rsync do to provoke this message?
> How can I prevent this message from being displayed?
> 
> Please cc me on any replies as I am not subscribed to the list. Thanks 
> for your help!
> 
> Version details:
> Windows version: XP SP 2 [Version 5.1.2600]
> rsync version: rsync  version 2.6.3  protocol version 28
> cygwin version (uname -r): 1.5.12(0.116/4/2)
> 
> 
> Best regards,
> 
> 
> Hans
> -- 
> Hans Kratz
> Omnicore Software
> http://www.omnicore.com
> 
> 
> 
>

Hi!
> The windows firewall show this message.
> Because rsync client try to establish connection using port 873.
> 
> You can define rsync client and server to use other port like port 80.
I just tried it with port 80 on server and client but the error message 
is still displayed.

I did not expect it to change anything either since the firewall is not 
supposed to block outgoing connections at all. And as stated in my 
original post rsync works fine even though the Windows firewall reports 
that it has blocked it.


Best regards,


Hans
-- 
Hans Kratz
Omnicore Software
http://www.omnicore.com