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# 1  
Old 06-02-2008
ssh question
hi all,

I setup a new server using centos 5.0 with webmin installed and its working fine. the only problem i found is that I now cant ssh into the box anymore for some reason. I am able to ssh out of it no problem tho. I did check to see if ssh was running and it was. I did the following to verify

ps -ef|grep sshd

and

/etc/init.d/sshd status

But when I try to connect via another box it just times out. Just to make sure I checked the firewall just to see if that port is open and it is far as i can tell.

Any more suggestions to try ?
# 2  
Old 06-03-2008
Can you connect via ssh from the box to itself? What does
Code:
iptables -L

show?
Does
Code:
netstat -a| grep -E "ssh|\:22"

show the open ssh port and if yes, with a LISTEN in the last column?
# 3  
Old 06-03-2008
Run the ssh with -vv flags to see where and why it's timing out.
# 4  
Old 06-03-2008
the iptables -l command did not work for me

now doing this

netstat -a| grep -E "ssh|\:22"

resulted in this

Code:
tcp        0      0 xxxx.net:2208         *:*                         LISTEN      
tcp        0      0 xxxx.net:2207         *:*                         LISTEN      
tcp        0      0 *:ssh                       *:*                         LISTEN      
unix  2      [ ACC ]     STREAM     LISTENING     7834   /tmp/ssh-wxNKGs2925/agent.2925


Now when I do this

Code:
ssh -vv xx.xx.xx.10

It just times out .

Code:
# ssh -vv xx.xxx.xx.10
OpenSSH_4.3p2, OpenSSL 0.9.8b 04 May 2006
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to xx.xxx.xx.xx [xx.xxx.xx.xx] port 22.
debug1: connect to address xx.xxx.xx.xx port 22: Connection timed out
ssh: connect to host xx.xxx.xx.xx port 22: Connection timed out

Now I can ssh to other boxes on the outside.

When I initially setup this box ssh was working fine somehow it got "broken".
Thoughts?

Thanks
# 5  
Old 06-03-2008
Did it say it doesn't know iptables, or did it moan about the lower case L?
Good thing, that your ssh-demon is listening so far. Can you check out if you have the same problem with any other client connecting to that server, ie. rsh, telnet, ftp?

Can you ping it from other machines or do a nmap on it's ports?

Just curious, what does a
Code:
netstat -rn

show?
# 6  
Old 06-03-2008
Ok wow yeah I cant ping the server from another one it just hangs weird.
The server is behind a firewall router could that be the problem pinging wise? I checked the router firewall and the ports for ssh, telnet and ftp are open and I can ftp into the server from the outside no problem and the apache server is working fine. But I cant telnet into the box either.
# 7  
Old 06-03-2008
Code:
# iptables -L
bash: iptables: command not found

also

Code:
# netstat -rn
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
192.168.61.0    0.0.0.0         255.255.255.0   U         0 0          0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0 eth0
0.0.0.0         192.168.61.1    0.0.0.0         UG        0 0          0 eth0

hmm this is weird shouldnt the destination ip be the one I assigned for eth0? which was 192.168.61.10 i know the router internal ip is set too 192.168.1.1
 
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