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Full Discussion: Using Commands over SSH using Sudo
Top Forums Programming Using Commands over SSH using Sudo Post 302599514 by metallica1973 on Friday 17th of February 2012 11:35:25 AM
Old 02-17-2012
Here is my testing scenario.

/etc/sudoers

Code:
user   ALL=NOPASSWD: /usr/bin/find, /bin/cpio, /bin/gzip

I know hostbased authentication is working:

Code:
ssh -t -t -o  "PasswordAuthentication no" -o "HostbasedAuthentication yes" -l user 10.7.0.180

Linux  2.6.32-30-generic #59-Ubuntu SMP Tue Mar 1 21:30:21 UTC 2011 i686 GNU/Linux
Ubuntu 10.04.2 LTS

Welcome to Ubuntu!
* Documentation:  https://help.ubuntu.com/

Last login: Fri Feb 17 10:30:18 2012 from 10.7.0.112
user@mymachine:~$

When testing the command with sudo, it is still prompting me for a password.

Code:
ssh -t -o  "PasswordAuthentication no" -o "HostbasedAuthentication yes" -l user 10.7.0.180 "sudo find / -depth"
[sudo] password for user:

??

---------- Post updated at 11:35 AM ---------- Previous update was at 10:41 AM ----------

I even changed

/etc/sudoers

Code:
user  ALL = NOPASSWD: ALL

and it still prompts for a password:

Code:
user@mymachine:~$ ssh -t -o "PasswordAuthentication no" -o "HostbasedAuthentication yes" -l user 10.7.0.180 "sudo find / -depth"
[sudo] password for user:

but when just using:

Code:
ssh -t -t -o  "PasswordAuthentication no" -o "HostbasedAuthentication yes" -l user 10.7.0.180

Linux  2.6.32-30-generic #59-Ubuntu SMP Tue Mar 1 21:30:21 UTC 2011 i686 GNU/Linux
Ubuntu 10.04.2 LTS

Welcome to Ubuntu!
* Documentation:  https://help.ubuntu.com/

Last login: Fri Feb 17 10:30:18 2012 from 10.7.0.112
user@mymachine:~$

its fine. ?????????????
 

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LEARN ABOUT REDHAT

ssh-keysign

SSH-KEYSIGN(8)						    BSD System Manager's Manual 					    SSH-KEYSIGN(8)

NAME

     ssh-keysign -- ssh helper program for hostbased authentication

SYNOPSIS

     ssh-keysign

DESCRIPTION

     ssh-keysign is used by ssh(1) to access the local host keys and generate the digital signature required during hostbased authentication with
     SSH protocol version 2.

     ssh-keysign is disabled by default and can only be enabled in the the global client configuration file /etc/ssh/ssh_config by setting
     HostbasedAuthentication to ``yes''.

     ssh-keysign is not intended to be invoked by the user, but from ssh(1).  See ssh(1) and sshd(8) for more information about hostbased authen-
     tication.

FILES

     /etc/ssh/ssh_config
	     Controls whether ssh-keysign is enabled.

     /etc/ssh/ssh_host_dsa_key, /etc/ssh/ssh_host_rsa_key
	     These files contain the private parts of the host keys used to generate the digital signature.  They should be owned by root, read-
	     able only by root, and not accessible to others.  Since they are readable only by root, ssh-keysign must be set-uid root if hostbased
	     authentication is used.

SEE ALSO

     ssh(1), ssh-keygen(1), ssh_config(5), sshd(8)

AUTHORS

     Markus Friedl <markus@openbsd.org>

HISTORY

     ssh-keysign first appeared in OpenBSD 3.2.

BSD
								   May 24, 2002 							       BSD
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