I ran nmap from both the local machine and also from the other Red Hat
server. I am at a loss as to why it isn't allowing the connection to
complete. I have also completely disabled iptables and the connection
still is not going through.
I do have NFS configured between the two machines with the machine that
won't allow ssh connections configured as the server and the other server
configured as the client system.
I am also able to connect to the ssh denying server with webmin.
I have even attempt to ssh into the server while sitting at a console on
itself. Even that fails.
It has something to do with the ssh_exchange_identification, I am just
unsure of where and how that is or could be configured.
Regards,
Robert Adkins II
IT Manager/Buyer
Impel Industries, Inc.
Ph. 586-254-5800
Fx. 586-254-5804
-----Original Message-----
From: Shannon Neumann [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 22, 2003 4:10 PM
To: [EMAIL PROTECTED]; [EMAIL PROTECTED];
Robert Adkins
Subject: Re: SSH Error
Are you running nmap from the Redhat box that you are trying to connect
to? The reason I ask is that if you are, often it will show ports as
open
that are not actually open to outside machines because of iptables. What
you might try is stopping iptables with service iptables stop and see
if you can connect. If you can, then you need to tweak iptables using
the
redhat-config-securitylevel and set it to allow incoming ssh.
Shannon Neumann
Neumannweb Computers
www.neumannweb.net
On Wed, 22 Jan 2003, Robert Adkins wrote:
> Hello All,
>
> I recently configured a Red Hat 8.0 system and I am running into some
> trouble with connecting to the system via SSH.
>
> When I run nmap against the machine I find out that port 22 is open
and
> listening. The SSH configuration file is all default, save for the
> addition of users that are allowed to access the system.
>
> When I run PuTTy to connect to the server, I receive nothing.
Sometimes
> PuTTy dies, sometimes it just sits there waiting for me to kill it.
When
> I connect to the server via ssh on the other server I receive the
> following error message on the screen:
>
> "ssh_exchange_identification: Connection closed by remote host"
>
> I am unfamiliar with why this message would be showing up. The system
> has nothing configured to deny such connections. I have given this a go
> with and without my ipchains rules in place. I believe that this is
> directly related to something with the way ssh is configured in Red Hat
> 8.0.
>
> Thanks for any assistance you can give.
>
> Regards,
> Robert Adkins II
> IT Manager/Buyer
> Impel Industries, Inc.
> Ph. 586-254-5800
> Fx. 586-254-5804
>
>
>
>
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