ssh_exchange_identification

[Denis Gueyffier]

Hi,

I hope i'm asking my question in the right mailing list !!?

I installed Openssl and OpenSSH_2.1.1 on my linux server a few days ago and
started the sshd service.
I was using the putty client from a windows box to log on my server when
suddenly the access was denied.

In order to debug all this, I opened 2 terminals. In the first one, I runned


/usr/sbin/sshd -d

 getting :

debug: sshd version OpenSSH_2.1.1
debug: Seeding random number generator
debug: read DSA private key done
debug: Seeding random number generator
debug: Bind to port 22 on 0.0.0.0.
Server listening on 0.0.0.0 port 22.
Generating 768 bit RSA key.
debug: Seeding random number generator
debug: Seeding random number generator
RSA key generation complete.


and

ssh -v localhost    in the second one

getting :

SSH Version OpenSSH_2.1.1, protocol versions 1.5/2.0.
Compiled with SSL (0x0090600f).
debug: Reading configuration data /etc/ssh/ssh_config
debug: Applying options for *
debug: Seeding random number generator
debug: ssh_connect: getuid 0 geteuid 0 anon 1
debug: Connecting to glas.infragames.com [213.11.75.226] port 22.
debug: Connection established.
ssh_exchange_identification: Connection closed by remote host
debug: Calling cleanup 0x805db00(0x0)


at the same time here is what i get in the first window

debug: Server will not fork when running in debugging mode.
Segmentation fault (core dumped)

I want to precise that my
/etc/hosts.allow
contains:

sshd:ALL




here is also my  /etc/ssh/ssh_config


# This is ssh client systemwide configuration file.  This file provides
# defaults for users, and the values can be changed in per-user
configuration
# files or on the command line.

# Configuration data is parsed as follows:
#  1. command line options
#  2. user-specific file
#  3. system-wide file
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.

# Be paranoid by default
Host *
      ForwardAgent no
      ForwardX11 yes
      FallBackToRsh no
      Protocol 2,1
        RhostsAuthentication no
        RhostsRSAAuthentication no
        RSAAuthentication yes
        PasswordAuthentication yes
        StrictHostKeyChecking no


and my  /etc/ssh/sshd_config

# This is ssh server systemwide configuration file.

Port 22
Protocol 2,1
ListenAddress 0.0.0.0
#ListenAddress ::
HostKey /etc/ssh/ssh_host_key
ServerKeyBits 768
LoginGraceTime 600
KeyRegenerationInterval 3600
PermitRootLogin yes
#
# Don't read ~/.rhosts and ~/.shosts files
IgnoreRhosts yes
# Uncomment if you don't trust ~/.ssh/known_hosts for
RhostsRSAAuthentication
#IgnoreUserKnownHosts yes
StrictModes yes
# DG 1/3/2001
#X11Forwarding yes
X11Forwarding no
X11DisplayOffset 10
PrintMotd yes
KeepAlive yes

# Logging
#SyslogFacility AUTH
SyslogFacility LOCAL6
LogLevel INFO
#obsoletes QuietMode and FascistLogging
RhostsAuthentication no
#
# For this to work you will also need host keys in /etc/ssh_known_hosts
RhostsRSAAuthentication no
#
RSAAuthentication yes

# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication no
PermitEmptyPasswords no
# Uncomment to disable s/key passwords
#SkeyAuthentication no

# To change Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#AFSTokenPassing no
#KerberosTicketCleanup no

# Kerberos TGT Passing does only work with the AFS kaserver
#KerberosTgtPassing yes

CheckMail no
UseLogin no

#Subsystem      sftp    /usr/local/sbin/sftpd







does anyone know what is happening here ?

Thks in advance

denis gueyffier
infra   games