pour information Error validating server certificate for 'https://lipn.univ-paris13.fr:443': - The certificate has expired. Certificate information: - Hostname: lipn.fr - Valid: from Mar 13 14:42:00 2017 GMT until Jun 11 14:42:00 2017 GMT - Issuer: Let's Encrypt Authority X3, Let's Encrypt, US - Fingerprint: C3:38:6D:0D:71:73:6E:87:3A:7D:95:7E:8E:25:91:D6:34:88:5D:68 -- Frederique Bassino LIPN UMR 7030 Tel: +33 1 49 40 40 84 Universite Paris 13 - CNRS Institut Galilee Bureau A104 99, avenue J.-B. Clement 93430 Villetaneuse - FRANCE