Importing a CA certificate to Portal through a Web Adaptor results in 500 internal server error

[esemplare]

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Regardless of whether there is an actual error or not, importing a CA certificate into Portal through a Web Adaptor results in 500 internal server error.

Sample code

from arcgis.gis import GIS
from arcgis.gis.admin import PortalAdminManager

portal_admin_url = "https://{}/arcportal/portaladmin".format(portal_fqdn)
gis = GIS(**gis_connection)
portal_mgr = PortalAdminManager(portal_admin_url, gis)
ssl_mgr = portal_mgr.security.ssl

res = ssl_mgr.import_certificate(ca_file, alias)
print(res) #Will print false

Setting portal_admin_url to "https://{}:7443/arcgis/portaladmin".format(portal_fqdn) results in intended behavior.

Using the Portal Admin Rest API (https://server_fqdn/arcportal/portaladmin/security/sslCertificates/importRootOrIntermediate) via the browser works fine through the Web Adaptor.

Versions: ArcGIS Version: 10.5.1 ArcGIS Python Api version 1.4.1

[rwmajor2]

@esemplare Are you by any chance using a DNS alias in your example above? vs. the actual machine name you might use in the :7443 example?

[esemplare]

For both examples I am using the FQDN. The same that is in DNS and the hostname of the server.

[nanaeaubry]

This issue is older and will be closed in an effort to remove stale issues. Please feel free to reopen if needed.