I'm trying to connect to a Cisco ASA VPN using credentials on a smartcard. My setup is Ubuntu 18.04 with OpenConnect 7.08. There are a bunch of certs on the card but think I positively identified the right one with the help of the anyconnect xml file and p11tool. I can connect from Anyconnect on Windows 10 just fine using the same card but when trying from another PC with linux and openconnect I get a Certificate Validation Failure message from the server. Is there anything else I can do to debug this? Thanks, Kai $ openconnect -v -c 'pkcs11:id=%11' --servercert sha256:0123456789 https://vpngw.gw.xx.xx/+webvpn+/index.html POST https://vpngw.gw.xx.xx/+webvpn+/index.html Attempting to connect to server 1.2.3.4:443 Connected to 1.2.3.4:443 Using PKCS#11 certificate pkcs11:id=%11;type=cert PIN required for Card PIN (Generic PKI Card) Enter PIN: Using PKCS#11 key pkcs11:model=PKCS%2315;manufacturer=xxx%20xx;serial=101050111841;token=Card%20PIN%20%28Generic%20PKI%20Card%29;id=%11;type=private Using client certificate 'Testuser PKI-Test PKI ABCDE' SSL negotiation with vpngw.gw.xx.xx Server certificate verify failed: signer not found Connected to HTTPS on vpngw.gw.xx.xx Got HTTP response: HTTP/1.1 301 Moved Permanently Connection: close X-Transcend-Version: 1 Location: https://vpngw.gw.xx.xx/+webvpn+/index.html Content-Type: text/html Content-Length: 0 HTTP body length: (0) GET https://vpngw.gw.xx.xx/+webvpn+/index.html Attempting to connect to server 1.2.3.4:443 Connected to 1.2.3.4:443 SSL negotiation with vpngw.gw.xx.xx Server certificate verify failed: signer not found Connected to HTTPS on vpngw.gw.xx.xx Got HTTP response: HTTP/1.1 200 OK Transfer-Encoding: chunked Content-Type: text/xml Cache-Control: max-age=0 Set-Cookie: webvpn=; expires=Thu, 01 Jan 1970 22:00:00 GMT; path=/; secure Set-Cookie: webvpn_as=; expires=Thu, 01 Jan 1970 22:00:00 GMT; path=/; secure Set-Cookie: webvpnc=; expires=Thu, 01 Jan 1970 22:00:00 GMT; path=/; secure Set-Cookie: webvpnlogin=1; secure X-Frame-Options: SAMEORIGIN X-Transcend-Version: 1 HTTP body chunked (-2) Please enter your username and password. Certificate Validation Failure Failed to obtain WebVPN cookie _______________________________________________ openconnect-devel mailing list openconnect-devel@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/openconnect-devel