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I use Ubuntu in my Laptop. I also have a Nokia N8 phone. To connect N8 to "WPA2 Enterprise WiFi", I need to export some certificate from my laptop.

The page explains how to export the necessary certificate from Windows 7. Can you please explain how to export the certificate from Ubuntu?

Simply copying the file in /usr/share/ca-certificates/mozilla does not work.

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Are you sure you installed a digital certificate on Ubuntu to access the wireless? Most people use a password rather than a certificate. If you did install a certificate, then you should be able to go back to where you installed it ( right click networking -> edit connection -> 802.1x security and see what file it points to for the CA certificate.

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The certificate you want should be in /etc/ssl/certs. Try the command find /etc/ssl/certs -type d to see if you have any certificates there. – BillThor Apr 12 '11 at 1:36

As Psusi pointed out, you can find the particular certificate that your laptop connection uses through the NetworkManager interface. Since using the certificate directly didn't work for you, I suspect that you may need to convert the certificate to a format that your phone accepts.

To convert from a PEM file to a DER file, you can use OpenSSL:

openssl x509 -inform PEM -outform DER -in Input.pem -out Output.der

If you don't have OpenSSL installed, you can find it in package manager.

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You may need to use .cer as the output file extension. – BillThor Apr 12 '11 at 1:31

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