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Old 09-16-2006, 03:32 AM   #1
dyool
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Putty:server unexpectedly closed network connection


I putty. when I try access to another machine I receive the message of putty
Code:
server unexpectedly closed network connection
Why?
When I do: ssh -X 192.168.1.4 the output is:
Quote:
Read from socket failed: Connection reset by peer
So, the problem maybe is in ssh.

Last edited by dyool; 09-16-2006 at 03:48 AM.
 
Old 09-16-2006, 04:29 AM   #2
philix
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Talking

Hi,

Please check whether there is any firewall using the iptables -L ?
Check whether the SSH server configurations had any restrictive users to login ?

Regards
Good Luck

Philix
God will bless you
 
Old 09-16-2006, 05:13 AM   #3
dyool
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I chnage the ssd_config and the output now is
Quote:
root@helder-desktop:/home/helder/Desktop# ssh -X 192.168.1.3
The authenticity of host '192.168.1.3 (192.168.1.3)' can't be established.
RSA key fingerprint is b5:cf:6b:bc:c6:a7:fe:d9:fb:26:d2:ba:b1:86:d8:18.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.1.3' (RSA) to the list of known hosts.
root@192.168.1.3's password:
Permission denied, please try again.
root@192.168.1.3's password:
Permission denied, please try again.
root@192.168.1.3's password:
Permission denied (publickey,password).
 
Old 09-16-2006, 05:45 AM   #4
dyool
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when I do: ssh -X 192.168.1.4 the output is
Quote:
ssh: connect to host 192.168.1.4 port 22: No route to host
Why?
 
Old 03-06-2012, 11:54 AM   #5
marcelo.sa
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FC16 X Putty:server unexpectedly closed network connection

I putty 0.62. when I try access to another machine with FC16, I receive the message of putty server unexpectedly closed network connection

solution: clear option in putty program: Category -> Connection -> SSH -> Auth -> GSSAPI -> Attempt GSSAPI authentication (SSH-2 only)

Last edited by marcelo.sa; 03-06-2012 at 11:56 AM.
 
Old 03-06-2012, 12:11 PM   #6
jack_9
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Connect by telnet if possible, And check if sshd service is UP..
 
Old 03-06-2012, 12:26 PM   #7
jack_9
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Oho I missed the complete threads.. your sshd service is up..
hmm seems like your root user is blocked.. interesting..
Quote:
Warning: Permanently added '192.168.1.3' (RSA) to the list of known hosts.
root@192.168.1.3's password:
Permission denied, please try again.
However If its possible then use telnet and check the /etc/hosts.allow and /etc/hosts.deny
if it contains your IP

And also check these following files
/var/log/secure, /var/log/auth.log, /etc/ssh/sshd_config and /etc/pam.d/ssh or /etc/pam.d/sshd or /etc/security/access.conf files

Last edited by jack_9; 03-06-2012 at 12:29 PM.
 
Old 03-06-2012, 12:54 PM   #8
linuxguy7820
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I had a similar issue until I set the Keep Alive in the Putty connection to something other then 0, it seemed to work best around 30 seconds.
 
Old 03-07-2012, 08:35 PM   #9
marcelo.sa
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Hey people, thanks, but I was not clear, I posted a problem he was having and with the resolution just below this, and I'm new to the forum ... grateful, I will replicate the question along with the solution:



I putty 0.62. when I try access to another machine with FC16, I receive the message of putty server unexpectedly closed network connection

SOLUTION: clear option in putty program: Category -> Connection -> SSH -> Auth -> GSSAPI -> Attempt GSSAPI authentication (SSH-2 only)
 
  


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