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I set up a ubuntu machine on my local server. I've got a user with sudo privileges (same password as for login).

I've got passwordless ssh going by putting my rsa public key on the ubuntu machine. So I can ssh in from my mac. But when I'm logged in over ssh, and I try to sudo, it tells me the password is invalid.

What's the deal? Here's my /etc/sudoers

# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults        env_reset
Defaults        mail_badpass
Defaults        secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
root    ALL=(ALL:ALL) ALL

# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL

# Allow members of group sudo to execute any command
%sudo   ALL=(ALL:ALL) ALL

# See sudoers(5) for more information on "#include" directives:

#includedir /etc/sudoers.d
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2  
Do you get a password fail (invalid login) error? Or just nothing happens? –  Big Chris Jun 12 at 20:20
    
You might want to include your sudo configuration. –  mdpc Jun 12 at 20:27
    
Have you tried logging in with your password, just to check that you have it correct? –  cpast Jun 13 at 1:44
    
Do you put the right password if the passwords at both machine are different? –  Ruslan Gerasimov Jun 13 at 5:36
    
I get 'sorry, try again', so password fail. I am entering the correct password. If I'm on the machine itself, user that password for sudo works. Attached sudo config. –  Ethan Jun 18 at 17:06

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