smt-mirror returns 500 CURL ERROR(35) SSL connect error

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Environment

SUSE Linux Enterprise Server 12

Situation

While syncing a repository (in this example SLES12-SP4-Updates for x86_64) the following error may be experienced:

smt:~ # smt-mirror --repository 2769

Mirroring: https://updates.suse.com/SUSE/Updates/SLE-SERVER/12-SP4/x86_64/update/
Target:    /srv/www/htdocs/repo/SUSE/Updates/SLE-SERVER/12-SP4/x86_64/update/
E 'https://updates.suse.com/SUSE/Updates/SLE-SERVER/12-SP4/x86_64/update/repodata/repomd.xml': 500 CURL ERROR(35) SSL connect error
E 'https://updates.suse.com/SUSE/Updates/SLE-SERVER/12-SP4/x86_64/update/repodata/repomd.xml': 500 CURL ERROR(35) SSL connect error
E 'https://updates.suse.com/SUSE/Updates/SLE-SERVER/12-SP4/x86_64/update/repodata/repomd.xml': 500 CURL ERROR(35) SSL connect error
SMT::Parser::RpmMdLocation Invalid XML in '/srv/www/htdocs/repo/SUSE/Updates/SLE-SERVER/12-SP4/x86_64/update//.repodata/repomd.xml':
no element found at line 1, column 0, byte 0 at /usr/lib/perl5/vendor_perl/5.18.2/x86_64-linux-thread-multi/XML/Parser.pm line 187.
Unable to recognise encoding of this document at /usr/lib/perl5/vendor_perl/5.18.2/XML/SAX/PurePerl/EncodingDetect.pm line 100.
SMT::Parser::RpmMdLocation Invalid XML in '/srv/www/htdocs/repo/SUSE/Updates/SLE-SERVER/12-SP4/x86_64/update//.repodata/repomd.xml': Document requires an element [Ln: 1, Col: 0]
Unable to recognise encoding of this document at /usr/lib/perl5/vendor_perl/5.18.2/XML/SAX/PurePerl/EncodingDetect.pm line 100.
SMT::Parser::RpmMdLocation Invalid XML in '/srv/www/htdocs/repo/SUSE/Updates/SLE-SERVER/12-SP4/x86_64/update//.repodata/repomd.xml': Document requires an element [Ln: 1, Col: 0]
Finished downloading and parsing the metadata, going to download the rest of the files...
=> Finished mirroring 'https://updates.suse.com/SUSE/Updates/SLE-SERVER/12-SP4/x86_64/update/'
=> Total files                : 1
=> Total transferred files    : 0
=> Total transferred file size : 0 bytes (0 Bytes)
=> Total linked files        : 0
=> Total copied files        : 0
=> Files up to date            : 0
=> Errors                    : 2
=> Mirror Time                : 00:00:01
=> New security updates        : 0
=> New recommended updates    : 0

Summary
Total transfered files    : 0
Total transfered file size: 0 (0 Bytes)
Total linked files        : 0
Total copied files        : 0
New security updates    : 0
New recommended updates   : 0
Errors:                   : 2
Total Mirror Time        : 00:00:01
Repositories with errors :
* SLES12-SP4-Updates for sle-12-x86_64 (https://updates.suse.com/SUSE/Updates/SLE-SERVER/12-SP4/x86_64/update/):
    - E 'https://updates.suse.com/SUSE/Updates/SLE-SERVER/12-SP4/x86_64/update/repodata/repomd.xml': 500 CURL ERROR(35) SSL connect error

Resolution

In /etc/smt.conf look for the line starting with HTTPSProxy and check if the url pointed to is http and not https.

Cause

The string for the HTTPS connection should be in the form http://proxy.example.com:3128

Disclaimer

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