I want to connect from QGIS to a PostGIS cluster via SSL.

I'm able to connect via SSL from PgAdmin4 and psql using the same certificates but not from QGIS.

QGIS throws the error:

SSL error: certificate verify failed

PSQL (works fine):

psql "sslmode=verify-ca sslrootcert=server-ca.pem \
      sslcert=client-cert.pem sslkey=client-key.pem \
      hostaddr=XXXXXX \
      port=5432 \
      user=postgres dbname=postgres"

PGAdmin 4 (works fine):

enter image description here QGIS configuration (doesn't work):

This is the connection form. I use a PKI stored identify certificate

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I create the PKI stored identify certificate as a PKI PEM/DER Certificate Paths. I provide the path of the client's cert (client-cert.pem) and the client's key (client-key.pem).

enter image description here

The root certificate is also there:

enter image description here

Server error log:

"[214]: [1-1] db=[unknown],user=[unknown] LOG:  could not accept SSL connection: TLSV1_ALERT_UNKNOWN_CA" 

It looks the root certificate is not sent

  • I feel the issue is that the authority of the cert (root cert) cannot be passed as a file
    – alasarr
    Jan 20, 2020 at 19:08

1 Answer 1


I've finally figured out where I need to place the root authority. Once I added it works!

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