As I described earlier, I would like to connect to VPN server from C++ code as a non-root user. I would also like to avoid interactive question response "yes , username, passowrd" as prompted by the openconnect. I have been not successful yet to achieve this. Any help would be appreciated. I have the following main questions. 1) Is it feasible to use script with embedded user name, passowrd and VPN server address in the script and with quite option to launch openConnect? Any example script? and how do I inform openconnect to use the script? 2) I am not getting past the error associated with the nonroot user mode connection here is the complete information. I followed the documentation at http://www.infradead.org/openconnect/nonroot.html sudo ip tuntap add vpn0 mode tun user ABC [sudo] password for smartcart: user at smartcart-VirtualBox:~/BASE/build/bin$ whoami smartcart user at smartcart-VirtualBox:~/BASE/build/bin$ openconnect -b X.X.X.X POST https://X.X.X.X/ Attempting to connect to server X.X.X.X SSL negotiation with X.X.X.X Server certificate verify failed: signer not found Certificate from VPN server "4.35.251.210" failed verification. Reason: signer not found Enter 'yes' to accept, 'no' to abort; anything else to view: yes Connected to HTTPS on X.X.X.X Got HTTP response: HTTP/1.0 302 Object Moved GET https://X.X.X.X/ Attempting to connect to server X.X.X.X443 SSL negotiation with X.X.X.X Server certificate verify failed: signer not found Connected to HTTPS on X.X.X.X Got HTTP response: HTTP/1.0 302 Object Moved GET https://4X.X.X.X/+webvpn+/index.html SSL negotiation with X.X.X.X Server certificate verify failed: signer not found Connected to HTTPS on X.X.X.X Please enter your username and password. GROUP: [sslvpnclient]:sslvpnclient Please enter your username and password. Username:dABC Password: POST https://4.35.251.210/+webvpn+/index.html Got CONNECT response: HTTP/1.1 200 OK CSTP connected. DPD 30, Keepalive 20 Failed to bind local tun device (TUNSETIFF): Operation not permitted To configure local networking, openconnect must be running as root See http://www.infradead.org/openconnect/nonroot.html for more information Set up tun device failed user at smartcart-VirtualBox:~/BASE/build/bin$ sudo ip tuntap add vpn0 mode tun user ABC ioctl(TUNSETIFF): Device or resource busy -- Thanks & Regards Harsh
