hi,

I have just installed debian 4 on a machine. i am running sshd on it.

However, when i try to login to the machine from Putty (on another
windows computer on the network), it goes ahead
and asks for user name.
I enter the username, and when i enter the password i get 'Network
error: Software caused connection abort'.

I believe the connection is lost at a very basic level. When i then
try to ssh to the box, i get 'connection refused', as if
nothing is listening on the port.
Sometimes i am able to login successfully, but after a while the
connection is completely lost at random. When lost, i get
'connection refused' when I retry. But I still can ping to the machine
all this time.

I checked ssh logs as well, but nothing of use there.
So i tried using VNC, and same problem occurs (meaning i get connection lost),
but still ping works.

I am completely lost, and dont know where to look for

Any is appreciated.

Thanks
meekaaku


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Do a tcpdump to capture network traffic and after that, have a look to it with
wireshark.
Sure that this will reveal to you what is the cause of your problem.

In the server:
#tcpdump -n -i <interface_where_the_client_arrives> -w traffic.cap port 22
And after that:
#wireshar traffic.cap

Regards

On Monday 20 August 2007 12:10, mee kaaku wrote:
> hi,
>
> I have just installed debian 4 on a machine. i am running sshd on it.
>
> However, when i try to login to the machine from Putty (on another
> windows computer on the network), it goes ahead
> and asks for user name.
> I enter the username, and when i enter the password i get 'Network
> error: Software caused connection abort'.
>
> I believe the connection is lost at a very basic level. When i then
> try to ssh to the box, i get 'connection refused', as if
> nothing is listening on the port.
> Sometimes i am able to login successfully, but after a while the
> connection is completely lost at random. When lost, i get
> 'connection refused' when I retry. But I still can ping to the machine
> all this time.
>
> I checked ssh logs as well, but nothing of use there.
> So i tried using VNC, and same problem occurs (meaning i get connection
> lost), but still ping works.
>
> I am completely lost, and dont know where to look for
>
> Any is appreciated.
>
> Thanks
> meekaaku


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thanks.. will try that and see

-m


On 8/21/07, srgqwerty <srgqwerty@gmail.com> wrote:
> Do a tcpdump to capture network traffic and after that, have a look to it with
> wireshark.
> Sure that this will reveal to you what is the cause of your problem.
>
> In the server:
> #tcpdump -n -i <interface_where_the_client_arrives> -w traffic.cap port 22
> And after that:
> #wireshar traffic.cap
>
> Regards
>
> On Monday 20 August 2007 12:10, mee kaaku wrote:
> > hi,
> >
> > I have just installed debian 4 on a machine. i am running sshd on it.
> >
> > However, when i try to login to the machine from Putty (on another
> > windows computer on the network), it goes ahead
> > and asks for user name.
> > I enter the username, and when i enter the password i get 'Network
> > error: Software caused connection abort'.
> >
> > I believe the connection is lost at a very basic level. When i then
> > try to ssh to the box, i get 'connection refused', as if
> > nothing is listening on the port.
> > Sometimes i am able to login successfully, but after a while the
> > connection is completely lost at random. When lost, i get
> > 'connection refused' when I retry. But I still can ping to the machine
> > all this time.
> >
> > I checked ssh logs as well, but nothing of use there.
> > So i tried using VNC, and same problem occurs (meaning i get connection
> > lost), but still ping works.
> >
> > I am completely lost, and dont know where to look for
> >
> > Any is appreciated.
> >
> > Thanks
> > meekaaku
>
>
> --
> To UNSUBSCRIBE, email to debian-user-REQUEST@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
>
>


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Running into same problem. Clean install of Debian 4. Need to do some more digging. If anyone finds out, please post.
System works fine until a ssh connection is initialized, then boom, intermitten ping responses. Could just be a coincidence with ssh. Same test system was working before doing a complete wipe of box to v4.


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