SSH To IP Address Fails

ViragoRider · 10-02-2003, 09:42 PM

This is most likely a simple config issue, here goes:

I've installed Redhat 9.1 without the firewall. I'm able to ssh from the box into the box via localhost, but when trying via the systems IP Address or name I get "connection refused". The sshd service is running, I've stopped iptables just in case with no luck.

I've spent a few hours trolling the net and haven't found the answer yet.

Thanks in advance.

Azmeen · 10-02-2003, 10:14 PM

I would say it's most likely an iptables issue, how did you verify that iptables has actually stopped?

ViragoRider · 10-02-2003, 11:05 PM

I used the Service Configuration screen to stop iptables and then attempted to ssh in.

Azmeen · 10-02-2003, 11:15 PM

Don't trust GUIs... can you show the results of running iptables -L as root?

Anyway, you can manually flush out all your iptables rules by running (as root):

Code:

iptables -F
iptables -F INPUT
iptables -F FORWARD
iptables -F OUTPUT
iptables -X

ViragoRider · 10-02-2003, 11:23 PM

I agree, I do not like to "trust" what a GUI is doing for me, however until I learn the Linux command line tools I'm still somewhat at their mercy.

Here's the output of iptables -L

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

m0rl0ck · 10-02-2003, 11:41 PM

Is there an ssh entry in your /etc/hosts.allow file?
ex:
sshd: ALL

Azmeen · 10-03-2003, 01:42 AM

m0rl0ck is right... also make sure there's nothing ssh-related in your /etc/hosts.deny either.

ViragoRider · 10-03-2003, 07:19 AM

Mystery solved. I had put an entry in hosts.allow and never looked at hosts.deny. There was an entry in hosts.deny blocking sshd!

Thanks everyone.