Spacewalk Client is Unable to Register to Server Due to "The SSL Certificate Failed Verification" (Doc ID 2206937.1)

Last updated on OCTOBER 30, 2018

Applies to:

Symptoms

The client system fails to register with the Spacewalk server  with the  below error:

An error has occurred:
The SSL certificate failed verification.
See /var/log/up2date for more information

Following  information is captured in /var/log/up2date log file.

[Thu Sep 22 15:27:32 2016] up2date
Traceback (most recent call last):
File "/usr/sbin/rhnreg_ks", line 216, in
cli.run()
File "/usr/share/rhn/up2date_client/rhncli.py", line 96, in run
sys.exit(self.main() or 0)
File "/usr/sbin/rhnreg_ks", line 91, in main
rhnreg.getCaps()
File "/usr/share/rhn/up2date_client/rhnreg.py", line 248, in getCaps
s.capabilities.validate()
File "/usr/share/rhn/up2date_client/rhnserver.py", line 178, in __get_capabilities
self.registration.welcome_message()
File "/usr/share/rhn/up2date_client/rhnserver.py", line 80, in __call__
raise (up2dateErrors.SSLCertificateVerifyFailedError(), None, sys.exc_info()[2])
<class 'up2date_client.up2dateErrors.SSLCertificateVerifyFailedError'>: The SSL certificate failed verification.

Cause

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