[QGIS-Developer] QGIS Server - SSL handshake failed for cascading WMS

Anne Blankert anne.blankert at geodan.nl
Mon May 14 09:30:36 PDT 2018

Hello Régis,

I did not yet try QGIS server 3.0 on Ubuntu yet (not clear to me how to
install it, will look at it again).

Thanks for pointing me to the problem described on https://issues.qgis.org/
issues/18634, however, it seems to be different from the SSL handshake
problem: their server was requesting over HTTP because the HTTPS
capabilities were advertising HTTP services (which is a not a QGIS server

2018-05-14 16:58 GMT+02:00 Régis Haubourg <regis.haubourg at gmail.com>:

> Hi Anne,
> did you test QGIS 3.0 also?
> Could you create an issue in issue.qgis.org tracker?
> I found that one, that seemed related https://issues.qgis.org/issues/18634
> Regards,
> Régis
> 2018-05-14 16:25 GMT+02:00 Anne Blankert <anne.blankert at geodan.nl>:
>> Hello List,
>> This question was already asked in Jan 2017, but no solution was posted.
>> http://osgeo-org.1560.x6.nabble.com/QGIS-Server-SSL-handshak
>> e-failed-for-cascading-WMS-td5305094.html
>> The problem: if QGIS uses an HTTPS (SSL) WMS service, the WMS works
>> nicely in QGIS desktop. However, if you use the same .qgs project file on
>> QGIS Server, all requests to the HTTPS (SSL) WMS server result in an  SSL
>> handshake error.
>> This (still) happens on:
>> Ubuntu 16.04
>> QGIS server 2.18
>> An example WMS https server showing the problem is:
>> https://geodata.nationaalgeoregister.nl/bag/ows
>> A workaround could be to use the HTTP version of the WMS instead of the
>> HTTPS version. However, the capabilities of many HTTP services advertise
>> endpoints.
>> The SSL problem also arises when trying to use WFS services over HTTPS
>> from QGIS Server.
>> Is this a known problem? Is there a workaround? Should I file a bug
>> report?
>> Thanks,
>> Anne
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