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Unable to SSH from Windows client to Ubuntu Server


 
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Special Forums IP Networking Unable to SSH from Windows client to Ubuntu Server
# 1  
Old 01-26-2015
Unable to SSH from Windows client to Ubuntu Server

I'm trying to setup a small home network environment as a pet project. These are physical machines nothing virtual. Any help or ideas is greatly appreciated.

I can ping between both machines and I have Samba established and can read/write different shares. When I try to SSH from Windows 8.1 client to Peppermint 3 system I get the following pop-up
Code:
 PuttY Fatal Error: Server unexpectedly closed network connection

ssh is running
Code:
service ssh status
ssh start/running, process 6083

listening on port 22
Code:
ss -lnp | grep ssh
LISTEN     0      128                      :::22                      :::*      users:(("sshd",6083,4))
LISTEN     0      128                       *:22                       *:*      users:(("sshd",6083,3))

iptables -L
Code:
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

cat /etc/network/interfaces
Code:
# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth1
iface eth1 inet static
address 192.168.1.50
netmask 255.255.255.0
gateway 192.168.1.1

# 2  
Old 01-26-2015
Can the Peppermint system ssh to itself?
# 3  
Old 01-26-2015
Quote:
Originally Posted by Corona688
Can the Peppermint system ssh to itself?
Yes
Code:
user5@Peppermint ~/.ssh $ ssh peppermint
The authenticity of host 'peppermint (127.0.1.1)' can't be established.
ECDSA key fingerprint is 17:a7:c9:f1:36:a8:e6:6e:e7:43:fb:72:9a:5a:c2:e6.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'peppermint' (ECDSA) to the list of known hosts.
user5@peppermint's password: 
Welcome to Peppermint Three (GNU/Linux 3.2.0-52-generic i686)

 * Documentation:  http://peppermintos.com/guide/

6 packages can be updated.
6 updates are security updates.




The programs included with the Peppermint system are free software
except as noted in the individual package documentation; the exact
distribution terms for each program are described in the individual
files in /usr/share/doc/*/copyright.

Peppermint comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.

user5@Peppermint ~ $ logout
Connection to peppermint closed.

# 4  
Old 01-27-2015
Is it running a firewall?
# 5  
Old 01-27-2015
In addition to the previous post have you added anything to /etc/hosts.deny?
# 6  
Old 01-27-2015
CAn both hosts ssh to their own full domain name, not localhost/IP? Do both IPs reverse lookup from the other end?
# 7  
Old 01-27-2015
Quote:
Originally Posted by Corona688
Is it running a firewall?
I have uninstalled the firewall from the linux server and disabled the windows firewall

---------- Post updated at 07:25 PM ---------- Previous update was at 07:24 PM ----------

Quote:
Originally Posted by gandolf989
In addition to the previous post have you added anything to /etc/hosts.deny?
only uncommented line in /etc/hosts.deny is this:

Code:
ALL: ALL

---------- Post updated at 07:28 PM ---------- Previous update was at 07:25 PM ----------

Quote:
Originally Posted by DGPickett
CAn both hosts ssh to their own full domain name, not localhost/IP? Do both IPs reverse lookup from the other end?
There isn't a domain. This is a private home network, I have a workgroup setup. In the smb.conf file I have the workgroup defined.

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