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Registration (traditional) of SLES11SP4 fails with ImportError: No module named backports.ssl_match_hostname

This document (000019928) is provided subject to the disclaimer at the end of this document.


SUSE Manager 4.1 Server


Registration of SLES11SP4 (as traditional client) against SUSE Manager 4.1 fails with following error message:
* registering
Traceback (most recent call last):
  File "/usr/sbin/rhnreg_ks", line 25, in <module>
    from rhn.connections import idn_puny_to_unicode
  File "/usr/lib64/python2.6/site-packages/rhn/", line 14, in <module>
    from rhn import SSL
  File "/usr/lib64/python2.6/site-packages/rhn/", line 47, in <module>
    from backports.ssl_match_hostname import match_hostname, CertificateError
ImportError: No module named backports.ssl_match_hostname

*** Error: Registering the system failed.


Install following package on top of SLES11SP4 client:
  • python-backports.ssl_match_hostname- (from SLES11-SP4-SUSE-Manager-Tools x86_64 channel)
Package can be downloaded from SUSE Manager 4.1:
  1. Login to SUSE Manager 4.1 webUI
  2. Click on "Software" -> "Package Search"
  3. Search for the package mentioned above
  4. Download the package


Missing dependency.


Reported to Engineering


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  • Document ID:000019928
  • Creation Date: 25-Mar-2021
  • Modified Date:25-Mar-2021
    • SUSE Manager Server

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