Re: I need help with sudo.conf

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On 20200628 15:30:34, ToddAndMargo via users wrote:
On 2020-06-28 13:15, Tom H wrote:
On Sun, Jun 28, 2020 at 10:01 PM ToddAndMargo via users
<users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
On 2020-06-28 12:16, ToddAndMargo via users wrote:

I am trying to use sudo to work around the following bug
I posted:

      ifdown access denied with USERCTL=yes
      https://bugzilla.redhat.com/show_bug.cgi?id=1828100

I wish they'd fix the bug, but it does not seems like it
is every going to get any attention.

So anyway, I fired up `sudovi` and added the following
at the end of /etc/sudo.conf`:

       ## Allows members of the users group to down eno2
       %users  ALL=/usr/libexec/nm-ifdown eno2

Now when I run it from the command line, I get:

       $ /usr/libexec/nm-ifdown eno2
       Error: failed to load connection: access denied.

Questions:

1) I thought `sudovi` caused sudo to reread sudo.conf
     on its exit.   Am I mistaken?  And if so, how do I
     force a reread?

2) what is wrong with the syntax of the command I added
     to sudo.conf?

It's "/etc/sudoers.conf".

Hi Tom,

Obviously not the right one.

$ ls -al /etc/sudo.conf
-rw-r--r--. 1 root root 3953 Mar 27 01:50 /etc/sudo.conf


$ less /etc/sudu.conf

#
# Default /etc/sudo.conf file
#
# Sudo plugins:
#   Plugin plugin_name plugin_path plugin_options ...
#
# The plugin_path is relative to /usr/libexec/sudo unless
#   fully qualified.
# The plugin_name corresponds to a global symbol in the plugin
#   that contains the plugin interface structure.
# The plugin_options are optional.
#
# The sudoers plugin is used by default if no Plugin lines are present.
Plugin sudoers_policy sudoers.so
Plugin sudoers_io sudoers.so
...



It's better to add a file, for example "/etc/sudoers.d/ifdown", with
"visudo -f /etc/sudoers.d/ifdown".


# ls /etc/sudoers.d
pkg-build

# grep -i nm-ifdown /etc/sudoers
%users  ALL= NOPASSWD: /usr/libexec/nm-ifdown eno2



Ah ha! This worked:

%users  ALL= NOPASSWD: /usr/libexec/nm-ifdown eno2

Better:

%users ALL=(root) NOPASSWD: /usr/libexec/nm-ifdown

I wanted the command to be specific to eno2

Then

$ sudo /usr/libexec/nm-ifdown eno2

Connection 'eno2' successfully deactivated (D-Bus active path:
/org/freedesktop/NetworkManager/ActiveConnection/2)


and `sudovi` did cause the re-read as I thought

There's no "sudovi". There's "visudo" to edit the configuration and
there's "sudoedit" to edit a file as another user.

I commonly will reverse letter.

:'(

does sudoedit reload the conf file when it exits?

Thank you!

-T

May I suggest creating a two line script file?

Name it "eno2down"

#!/bin/bash
/usr/libexec/nm-ifdown eno2


Then your sudo command can be "sudo eno2down".

Store it in /usr/local/bin for everybody.

{^_^}   Joanne
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