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SUSEConnect error: OpenSSL::SSL::SSLError: SSL_connect: certificate verify failed.

This document (7018477) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 12 Service Pack 2 (SLES 12 SP2)
SUSE Linux Enterprise Server 12 Service Pack 3 (SLES 12 SP3)
SUSE Linux Enterprise Server 12 Service Pack 4 (SLES 12 SP4)
SUSE Linux Enterprise Server 12 Service Pack 5 (SLES 12 SP5)


System has a proxy set but excluded for SMT (Subscription-Management Tool) or SCC (SUSE Customer Center) e.g. via NO_PROXY variable (e.g. system was previously upgraded from SLE 11 to SLE12).

When running the SUSEConnect command, a certificate error is displayed :
SSL verification failed: unable to get local issuer certificate
SUSEConnect error: OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=error: certificate verify failed

When running "wget" or "curl" commands against the SMT server, the server does not report this error.


White spaces and leading dots cannot be used in NO_PROXY.
The NO_PROXY settings can be changed via  "YaST" -> "Network Services" -> "Proxy", or by manually editing files.
When changing files manually, please edit the following two files :
--noproxy "localhost,,"

Finally, please ensure that /etc/hosts does not contain any entries for or


The syntax for the NO_PROXY variable has changed.
Another cause for such issue may be a 3rd party application installed an alternative version of the OpenSSL libraries and alters the default file-system pointers/paths to the required version of the OpenSSL libraries. Please see (registration and updates fail due to curl: (59) failed setting cipher list: DEFAULT_SUSE

Additional Information

"unable to get local issuer certificate" could also indicate that there is a transparent proxy / network filter solution. As it works transparent for the server the only indication is a different certificate is retrieved than the original one:
echo|openssl s_client -connect|head -n 10



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  • Document ID:7018477
  • Creation Date: 11-Jan-2017
  • Modified Date:07-May-2024
    • Subscription Management Tool
    • SUSE Linux Enterprise Server

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