Question

Solaris 10 problem connecting to a remote server to copy patches

Asked by: adviceplease

I am a solaris 10 beginner and having a problem connecting to a remoter server.  I can ping the server and can ping the solaris box from the remote server.  I can also connect to the remote server via a telnet session but not login.  Whether I try and connect via sftp, ssh, scp I get the error stated below:

'ssh: connect to host 172.20.30.94 port 22: Connection refused'

Please help?

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Asked On
2009-08-06 at 05:08:55ID24631073
Tags

ssh ftp scp solris 10 remote server copy files

Topics

Sun JDS

,

Unix Network Security

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Answers

 

by: omarfaridPosted on 2009-08-06 at 05:25:04ID: 25032409

you can not login at all with any user or particularly as root? Normally root access via telnet. ssh / scp / sftp connection refused could be that ssh server / daemon is not running. Can you ftp to the server?

 

by: advicepleasePosted on 2009-08-06 at 05:58:33ID: 25032689

I can ftp to the server and login, but I can't ssh, scp or sftp and they all get that same error. I have enable ssh via the command below

'svcadm enable ssh
 svcadm restart ssh'

Still recieve the error, any ideas?

 

by: omarfaridPosted on 2009-08-06 at 06:10:14ID: 25032819

do you have a firewall that could be causing the error?

 

by: advicepleasePosted on 2009-08-06 at 06:20:48ID: 25032940

There is no firewalls involved as I have jsut transferred a file via ftp, but still can't connect via any of the other methods. Any ideas?

 

by: omarfaridPosted on 2009-08-06 at 06:23:30ID: 25032973

ftp runs on ports 20 and 21 while ssh / sftp / scp run on port 22

when you login to the system can you run

ssh 0

and see if you can connect and login (this just to test that ssh server is running)

 

by: advicepleasePosted on 2009-08-06 at 06:31:40ID: 25033053

I try and I assume it was a success,  I have posted the text below.

ssh 0
The authenticity of host '0 (0.0.0.0)' can't be established.
RSA key fingerprint is 3d:aa:f1:a5:b6:f8:19:66:6b:e4:b2:70:65:17:fa:21.
Are you sure you want to continue connecting (yes/no)? y
Please type 'yes' or 'no': yes
Warning: Permanently added '0,0.0.0.0' (RSA) to the list of known hosts.
Password:

 

by: omarfaridPosted on 2009-08-06 at 06:35:26ID: 25033101

The only reason I could think of is a firewall or tcp wrapper / ip filter that is blocking / resetting your ssh / sftp / scp connection.

 

by: advicepleasePosted on 2009-08-06 at 06:59:10ID: 25033389

Thanks for your help, but I acn connect from other machine and transfer files.  anybody else?

 

by: turnbulldPosted on 2009-08-06 at 11:55:43ID: 25036808

Check these files on the remote server:
/etc/default/login:
  Look for a line that starts CONSOLE=.  If it is present, comment it out temporarily.  Once this is done, disconnect and try to login in again remotely via telnet.  This is not secure and is not a recommended long term configuration.

/etc/ssh/sshd_config
Look for a line that starts PermitRootLogin.  It is typically followed by the work "no".  Change it to "yes", save the file, then run this command:

svcadm restart ssh

Once this is done, disconnect and try to remotely login via ssh.  This is also a generally unacceptable long term configuration due to security risks.

 

by: uaynebPosted on 2009-09-08 at 13:33:26ID: 25285876

Per your comment "There is no firewalls involved as I have jsut transferred a file via ftp, but still can't connect via any of the other methods. Any ideas?"

Just because you can ftp to the server and it works does not necessarily mean a firewall is not involved.  A firewall can be blocking port 22 but not port 21, thus you can ftp there but you cannot ssh there.

From the box try "telnet server 22" just to see if you can get a connection.

Also what is in /etc/hosts.allow and /etc/hosts.deny?







 

by: advicepleasePosted on 2010-01-29 at 06:25:04ID: 26437465

thanks but this is resolved

20120131-EE-VQP-002

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