To: ssh_exchange_identification: Connection Closed

[Janina Sajka]

No, I think you may have misunderstood. The problem only happens inbound
on one machine. There's no outbound problem anywhere on my syst4ems.

Hugh Esco writes:
> From: Hugh Esco <hesco at greens.org>
> 
> Can you ssh to some other system and ssh in turn from there?  -- hugh
> 
> At 02:11 PM 8/12/03 -0400, you wrote:
> >I have been getting the following error on my Debian server running Open
> >SSH 3.4p1-1
> >
> >ssh_exchange_identification: Connection closed by remote host
> >
> >
> >Now, here's the interesting thing, it only happens from certain systems.
> >In particular, it happens from my office where the IS Dept. folks, in
> >their wisdom, have installed some kind of NT firewall. And, it happens
> >from bumpy.braille.uwo.ca, and I have no idea what kind of firewalling
> >may be going on between Bumpy and the external net at uwo.ca.
> >
> >But, it doesn't happen from my newly installed Red Hat Severn system
> >running on my portable machine, and it doesn't happen from
> >speakup.octothorp.org.
> >
> >It gets even more interesting:
> >
> >My office machine and my portable are both running fresh installs of Red
> >Hat Severn. So, they should perform the same, right? Unless some
> >intervening element is changing things?
> >
> >I believe something is being stripped. If I do -v -v I get:
> >
> >debug3: key_read: missing whitespace
> >debug3: key_read: missing whitespace
> >debug3: key_read: missing whitespace
> >debug3: key_read: missing whitespace
> >debug3: key_read: missing whitespace
> >debug3: key_read: missing whitespace
> >debug3: key_read: missing whitespace
> >debug2: key_type_from_name: unknown key type '-----END'
> >debug3: key_read: missing keytype
> >debug1: identity file /home/janina/.ssh/id_dsa type 2
> >ssh_exchange_identification: Connection closed by remote host
> >
> >Let me repeat, this is from the same Red Hat installation that is on my
> >portable which has no problems. So, I'm quite convinced something
> >inbetween--very probably some kind of filtering rule on a firewall--is
> >doing something to the "white space."
> >
> >Given that I can't make changes on intervening systems, what's the
> >resolution? How do I downscale the security checking without
> >compromising myself too much?
> >
> >
> >_______________________________________________
> >Speakup mailing list
> >Speakup at braille.uwo.ca
> >http://speech.braille.uwo.ca/mailman/listinfo/speakup
> 
> 
> _______________________________________________
> Speakup mailing list
> Speakup at braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup

-- 
	
				Janina Sajka, Director
				Technology Research and Development
				Governmental Relations Group
				American Foundation for the Blind (AFB)

Email: janina at afb.net		Phone: (202) 408-8175