I need help troubleshooting SSH; unable to remote-login to Server 3.1.1 on Lan

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I need help troubleshooting SSH; unable to remote-login to Server 3.1.1 on Lan

Running Server 3.1.1 on a Mac Mini. When I issue the command 'ssh user@server.local' from my iMac to my Mac Mini, it fails with a timeout. I can ssh into the server locally using the command line. In this case the server responds instantly. It has been a while (couple months) since I tried this from my iMac but the last time I did, it worked just fine. There have been a few updates to the Mac Mini including the updated versions of the Server and Mac OS X 10.9 minor updates. Curently I'm stable with Mac OS X 10.9.2

Ultimately I want to get the Xcode service running but lets not bother with that for now. I need SSH as a first step.

How should I proceed to troubleshoot this issue?

-Michael

Posted on Mar 29, 2014 1:09 PM

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Answer 1

Linc Davis

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Mar 29, 2014 2:04 PM in response to N206LG

Can you ping the server, or connect to it on the network in any other way?

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Answer 2

N206LG Author

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Mar 29, 2014 2:14 PM in response to Linc Davis

I have the server in stealth mode but I'm sure the ICMP layer is alive. I can connect with to Server (remote admin) App from the iMac with no problem. File Server is also still working. It is only SSH that seems to be broken.

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Answer 3

Linc Davis

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Mar 29, 2014 2:22 PM in response to N206LG

What do you get from "ssh -vvv ..."?

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Answer 4

N206LG Author

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Mar 29, 2014 2:30 PM in response to Linc Davis

Here are the results:

imac:~ michael$ ssh -vvv macmini.local

OpenSSH_6.2p2, OSSLShim 0.9.8r 8 Dec 2011

debug1: Reading configuration data /etc/ssh_config

debug1: /etc/ssh_config line 20: Applying options for *

debug1: /etc/ssh_config line 53: Applying options for *

debug2: ssh_connect: needpriv 0

debug1: Connecting to macmini.local [10.0.1.6] port 22.

debug1: connect to address 10.0.1.6 port 22: Operation timed out

debug1: Connecting to macmini.local [fe80::aa20:66ff:fe1a:78e7%en0] port 22.

debug1: connect to address fe80::aa20:66ff:fe1a:78e7%en0 port 22: Operation timed out

ssh: connect to host macmini.local port 22: Operation timed out

sulaco:~ michael$

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Answer 5

Linc Davis

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Mar 29, 2014 2:42 PM in response to N206LG

Apparently the server is not responding at all to connection requests. Firewall?

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Answer 6

N206LG Author

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Mar 29, 2014 3:03 PM in response to Linc Davis

We have a winner! The crazy thing is that the firewall appears to be configured to allow SSH to connect. Once I turned it off, I could connect. For grinns, I turned it back on and it is still working. Somehow the UI and the internal state fo the firewall appear to have gotten out of sycn.

Thanks for your help.

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Answer 7

D-P

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Jan 15, 2015 6:42 AM in response to N206LG

In my case I had sshd-keygen-wrapper blocked.

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