Ssh: Connection refused when access remotely

fedorassh

I recently installed ssh server openssh-server in my fedora 16. I added my friend user account to my sshuser list. When my friend tried to connect my server computer via ssh using following command

ssh sudip@192.168.1.123

then it shows following error

ssh: connect to host 192.168.1.123 port 22: Connection refused

but when i tried locally from my machine the server was connected.

root@localhost /]# ssh sudip@192.168.1.123
sudip@192.168.1.123's password: 
Last login: Tue Feb 26 13:24:42 2013 from localhost.localdomain
[sudip@localhost ~]$

Also, my firewall is allowing SSH and SHH is running on port 22.
So how can i troubleshoot the error??

thank you in advance.

EDIT:
I already started sshd using service sshd restart

EDIT2:
output of: iptables -n -L -v

Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
46970   23M ACCEPT     all  --  *      *       0.0.0.0/0            0.0.0.0/0            state RELATED,ESTABLISHED
   11   616 ACCEPT     icmp --  *      *       0.0.0.0/0            0.0.0.0/0           
  133  8552 ACCEPT     all  --  lo     *       0.0.0.0/0            0.0.0.0/0           
    0     0 ACCEPT     tcp  --  *      *       0.0.0.0/0            0.0.0.0/0            state NEW tcp dpt:22
 2328  343K REJECT     all  --  *      *       0.0.0.0/0            0.0.0.0/0            reject-with icmp-host-prohibited

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination         
    0     0 REJECT     all  --  *      *       0.0.0.0/0            0.0.0.0/0            reject-with icmp-host-prohibited

Chain OUTPUT (policy ACCEPT 59145 packets, 7665K bytes)
 pkts bytes target     prot opt in     out     source               destination

Edit 3: result of traceroute 192.168.1.123

traceroute to 192.168.1.123 (192.168.1.123), 30 hops max, 60 byte packets
 1  192.168.50.1 (192.168.50.1)  0.828 ms  0.805 ms  0.818 ms
 2  * * *
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30  * * *

The workstation also uses fedora 16

Best Answer

You can use ssh -vvv user@192.x.x.x to get debug info on the connection. If -vvv is too much info you can use -vv or -v for less detailed debug info.

On the remote server, you should be able to see some info in /var/log/message or /var/log/syslog also.

A combo of those 2 things should point you in the right direction.

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