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Bug 1509691 - Document how to change the regular expression for SSSD so that group names with an @-sign can be parsed
Summary: Document how to change the regular expression for SSSD so that group names wi...
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: sssd
Version: 7.4
Hardware: Unspecified
OS: Unspecified
Target Milestone: rc
: ---
Assignee: Jakub Hrozek
QA Contact: ipa-qe
Depends On:
TreeView+ depends on / blocked
Reported: 2017-11-05 18:04 UTC by Jakub Hrozek
Modified: 2018-10-30 10:41 UTC (History)
9 users (show)

Fixed In Version: sssd-1.16.2-3.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2018-10-30 10:40:47 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:3158 None None None 2018-10-30 10:41:50 UTC

Description Jakub Hrozek 2017-11-05 18:04:48 UTC
Description of problem:
This is a spin-off of which, instead changing the default re_expression (which might be too risky in a stable RHEL version) would document how to change the expression for environments that use groupnames with an @-sign.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:

Actual results:

Expected results:

Additional info:

Comment 2 Jakub Hrozek 2017-11-05 18:08:45 UTC
Upstream ticket:

Comment 3 Fabiano Fidêncio 2018-06-22 11:42:34 UTC

Comment 9 Mohammad Rizwan 2018-09-06 07:47:22 UTC

1. Install IPA master and setup AD trust

2. Add a user on AD side having @ i.e test@riz

3. Add a group on AD having @ i.e test@test

4. Add user to the the added group in step 3

5. clear cache and restart sssd on ipa server

6. Run id and getent for user and group on ipa server
   $ id test@riz@ad-domain

   $  getent group test@test@ad-domain

7. Install Ipa client

8. set regex on sssd.conf on ipa client in section [domain] and [sssd] and restart the sssd:

re_expression = ((?P<name>.+)@(?P<domain>[^@]+$))
use_fully_qualified_names = True
debug_level = 9

services = nss, sudo, pam, ssh
re_expression = ((?P<name>.+)@(?P<domain>[^@]+$))
debug_level = 9

9. 6. Run id and getent for user and group on ipa client
   $ id test@riz@ad-domain

   $  getent group test@test@ad-domain

Actual result:

[root@mater ~]# id test@riz@ipaad2016.test
uid=1577608962(test_riz@ipaad2016.test) gid=1577608962(test_riz@ipaad2016.test) groups=1577608962(test_riz@ipaad2016.test),1577608961(test@test@ipaad2016.test),1577605681(group1@ipaad2016.test),1577600513(domain users@ipaad2016.test)
[root@mater ~]# 
[root@mater ~]# 
[root@mater ~]# getent group test@test@ipaad2016.test

[root@client ~]# id test@riz@ipaad2016.test
uid=1577608962(test_riz@ipaad2016.test) gid=1577608962(test_riz@ipaad2016.test) groups=1577608962(test_riz@ipaad2016.test)
[root@client ~]# 
[root@client ~]# getent group test@test@ipaad2016.test
[root@client ~]# 

Currently '@' sign works for user name only and not for group names. Hence marking the bug as verified.

Comment 13 errata-xmlrpc 2018-10-30 10:40:47 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

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