SSH broken :(

Egrefen · 06-20-2009, 03:02 AM

Out of the blue, I can't seem to SSH into my iMac anymore as of last update.

1) I checked that remote login was turned on in sharing.
2) I can see and ping my iMac
3) My password has not been changed (checked with 'sudo ls')
4) The problem occurs when trying to SSH into my iMac from my iMac itself ('ssh localhost')

The symptoms are:
a) Host is found, password requested.
b) Give password, abnormal pause.
c) Password requested again, not mention of permission being denied.

Here's a sample from secure.log for one such login attempt.

Code:

Jun 20 08:59:24 h072 com.apple.SecurityServer[22]: Failed to authorize right system.login.tty by client /usr/sbin/sshd for authorization created by /usr/sbin/sshd.
Jun 20 08:59:24 h072 sshd[18313]: error: PAM: Authentication failure for illegal user Edward from localhost
Jun 20 08:59:24 h072 sshd[18313]: Failed keyboard-interactive/pam for invalid user Edward from ::1 port 52916 ssh2

I'd naturally greatly appreciate any help with this issue, as I'm leaving town soon but need to access my iMac to check up on project work.

hayne · 06-20-2009, 03:16 AM

The "illegal user" stuff in the logs might mean that your user account is not listed as being allowed to use 'ssh' in the ssh config files - have you changed these?

Or perhaps it indicates some corruption in the user accounts database. Maybe try creating a new user and tying when logged in as that user.

Egrefen · 06-20-2009, 03:25 AM

No, but I did update from 10.5.6 for 10.5.7 recently. Is there anything specific I should look for? If possible, I'd rather not have to create a new user.

hayne · 06-20-2009, 03:31 AM

Creating a new user is merely a diagnostic step.

Egrefen · 06-20-2009, 03:41 AM

Have tried. Can't login to that user, and same problem when I switch.

EDIT: By "can't login" I mean "via ssh".

agentx · 06-20-2009, 07:34 AM

I presume you are using the command

ssh edward@ip_address_of_machine ?

In System Prefs > Sharing > Remote Login > Allow Access for all users ?

Egrefen · 06-20-2009, 08:43 AM

Quote:

Originally Posted by agentx


	I presume you are using the command ssh edward@ip_address_of_machine ? In System Prefs > Sharing > Remote Login > Allow Access for all users ?

Funny story. Turns out I (presumably) accidentally clicked "Allow access only for these users" in that menu, and left the list blank.

Thanks for the help troubleshooting.

iaw4 · 01-10-2010, 05:49 PM

OSX gives a terribly uninformative error message here. it really should say "ssh access not allowed for edward; see System Prefs > Sharing > Remote Login > Allow Access for all users'

06-20-2009, 03:02 AM	#1
Egrefen Triple-A Player Join Date: Nov 2004 Posts: 61	SSH broken :( Out of the blue, I can't seem to SSH into my iMac anymore as of last update. 1) I checked that remote login was turned on in sharing. 2) I can see and ping my iMac 3) My password has not been changed (checked with 'sudo ls') 4) The problem occurs when trying to SSH into my iMac from my iMac itself ('ssh localhost') The symptoms are: a) Host is found, password requested. b) Give password, abnormal pause. c) Password requested again, not mention of permission being denied. Here's a sample from secure.log for one such login attempt. Code: Jun 20 08:59:24 h072 com.apple.SecurityServer[22]: Failed to authorize right system.login.tty by client /usr/sbin/sshd for authorization created by /usr/sbin/sshd. Jun 20 08:59:24 h072 sshd[18313]: error: PAM: Authentication failure for illegal user Edward from localhost Jun 20 08:59:24 h072 sshd[18313]: Failed keyboard-interactive/pam for invalid user Edward from ::1 port 52916 ssh2 I'd naturally greatly appreciate any help with this issue, as I'm leaving town soon but need to access my iMac to check up on project work.

06-20-2009, 03:16 AM	#2
hayne Site Admin Join Date: Jan 2002 Location: Montreal Posts: 31,956	The "illegal user" stuff in the logs might mean that your user account is not listed as being allowed to use 'ssh' in the ssh config files - have you changed these? Or perhaps it indicates some corruption in the user accounts database. Maybe try creating a new user and tying when logged in as that user. __________________ hayne.net/macosx.html

06-20-2009, 03:31 AM	#4
hayne Site Admin Join Date: Jan 2002 Location: Montreal Posts: 31,956	Creating a new user is merely a diagnostic step. __________________ hayne.net/macosx.html

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

06-20-2009, 03:25 AM	#3
Egrefen Triple-A Player Join Date: Nov 2004 Posts: 61	No, but I did update from 10.5.6 for 10.5.7 recently. Is there anything specific I should look for? If possible, I'd rather not have to create a new user.

06-20-2009, 03:41 AM	#5
Egrefen Triple-A Player Join Date: Nov 2004 Posts: 61	Have tried. Can't login to that user, and same problem when I switch. EDIT: By "can't login" I mean "via ssh".

06-20-2009, 07:34 AM	#6
agentx Hall of Famer Join Date: Feb 2003 Location: Brighton, UK Posts: 3,832	I presume you are using the command ssh edward@ip_address_of_machine ? In System Prefs > Sharing > Remote Login > Allow Access for all users ?

01-10-2010, 05:49 PM	#8
iaw4 Triple-A Player Join Date: Sep 2008 Posts: 59	OSX gives a terribly uninformative error message here. it really should say "ssh access not allowed for edward; see System Prefs > Sharing > Remote Login > Allow Access for all users'