[Freeipa-users] How to use sudo rules on ubuntu

Tue Sep 2 08:02:34 UTC 2014

Step 0
root at clnt:/home/awtadm# grep sudoers /etc/nsswitch.conf
sudoers_debug:    1
sudoers: files sss

root at clnt:/home/awtadm# ipa-client-install --no-ntp
IPA client is already configured on this system.

root at clnt:/home/awtadm# grep services /etc/sssd/sssd.conf
services = nss, pam, ssh, sudo

Step1 (there is some problem when create rule on CLI. No problem prompt 
on Web-based)
...
[root at srv ~]# ipa sudorule-add-option readfiles
Sudo Option: !authenticate
ipa: ERROR: no such entry

...
  Then:
awtadm at clnt:~$ su user1
Password:
user1 at clnt:/home/awtadm$ /usr/bin/less /etc/shadow |wc -l
/etc/shadow: Permission denied
0
user1 at clnt:/home/awtadm$ sudo /usr/bin/less /etc/shadow |wc -l
[sudo] password for user1:
user1 is not in the sudoers file.  This incident will be reported.
0
user1 at clnt:/home/awtadm$ id
uid=1423400004(user1) gid=1423400004(user1) groups=1423400004(user1)
user1 at clnt:/home/awtadm$ sudo -l
[sudo] password for user1:
Sorry, user user1 may not run sudo on clnt.
user1 at clnt:/home/awtadm$ exit
exit
awtadm at clnt:~$ su user1
Password:
user1 at clnt:/home/awtadm$ id
uid=1423400004(user1) gid=1423400004(user1) groups=1423400004(user1)
user1 at clnt:/home/awtadm$ sudo -l
[sudo] password for user1:
Sorry, user user1 may not run sudo on clnt.
user1 at clnt:/home/awtadm$ /usr/bin/less /etc/shadow |wc -l
/etc/shadow: Permission denied
0
user1 at clnt:/home/awtadm$ sudo /usr/bin/less /etc/shadow |wc -l
[sudo] password for user1:
user1 is not in the sudoers file.  This incident will be reported.
0

--OR--

Darktower tevfik # ssh user1 at 10.1.1.174
The authenticity of host '10.1.1.174 (10.1.1.174)' can't be established.
ECDSA key fingerprint is 37:32:fc:ca:34:ce:4c:07:e8:b6:f6:56:75:98:69:b8.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '10.1.1.174' (ECDSA) to the list of known hosts.
user1 at 10.1.1.174's password:
Welcome to Ubuntu 14.04.1 LTS (GNU/Linux 3.13.0-24-generic x86_64)

  * Documentation:  https://help.ubuntu.com/

Last login: Mon Sep  1 17:50:02 2014 from 10.65.8.100
user1 at clnt:~$ sudo /usr/bin/less /etc/shadow |wc -l
[sudo] password for user1:
user1 is not allowed to run sudo on clnt.  This incident will be reported.
0
user1 at clnt:~$ sudo -l
[sudo] password for user1:
User user1 is not allowed to run sudo on clnt.

On 01-09-2014 19:05, Lukas Slebodnik wrote:
> On (01/09/14 17:52), Tevfik Ceydeliler wrote:
>> 1. I think I configure instead of this document
> Sorry you didn't.
>
>> 2. I can login with ordinary user
> login and sudo are not the same think.
>
> My FreeIPA server is alredy properly configured with sudo rules.
> I tried to install freipa-client on ubuntu 14.04 and it owrked without any
> problem.
>
>>> Step 0: Install freipa-client on ubuntu 14.04 and configure sudo integration
> root at ubuntu1404:/# ipa-client-install --no-ntp
> root at ubuntu1404:/# echo "sudoers: files sss" >> /etc/nsswitch.conf
>
> root at ubuntu1404:/# grep services /etc/sssd/sssd.conf
> services = nss, pam
> root at ubuntu1404:/# sed -i -e 's/\(services.*\)/\1, sudo/' /etc/sssd/sssd.conf
> root at ubuntu1404:/# grep services /etc/sssd/sssd.conf
> services = nss, pam, sudo
>
>>> Step 1: configure sudo rules for ordinary user
>>>      Please follow the instructions from FreeIPA documentation.
>>>      http://www.freeipa.org/docs/master/html-desktop/index.html#sudo
>>>
>    This step was skipped, becuase it was already done few months ago :-)
>
>>> Step 2: login to machine as ordinary user, which is allowed to use sudo.
> $ su usersssd01
> Password:
> $ id
> uid=325600011(usersssd01) gid=325600011(usersssd01) groups=325600011(usersssd01),30011(biggroup1)
>
>>> Step 3: run command
>>>      sudo -l
>>>      // this command should show you which commands can be executed as root
>>>      // with sudo
> $ sudo -l
> sudo: unable to resolve host ubuntu1404.example.test
> [sudo] password for usersssd01:
> Matching Defaults entries for usersssd01 on ubuntu1404:
>      env_reset, mail_badpass,
>      secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin
>
> User usersssd01 may run the following commands on ubuntu1404:
>      (root) /usr/bin/less, /usr/bin/vim
>
>>> Step 4: If there weren't any problems then user will be able to run command.
>>>      sudo some_command_listed_in_step3
> $ sudo /usr/bin/less /etc/shadow | wc -l
> 21
> $ echo $?
> 0
>
> $ sudo apt-get install mc
> Sorry, user usersssd01 is not allowed to execute '/usr/bin/apt-get install mc' as root on ubuntu.example.test.
> $ echo $?
> 1
>
> LS

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