Using curl on a clean vanilla Fedora 21 to retrieve a site hosted via the cloudflare https service gives an error:
curl https://www.opencpu.org >> curl: (35) Cannot communicate securely with peer: no common encryption algorithm(s).
curl https://www.cloudflare.org >> curl: (51) Unable to communicate securely with peer: requested domain name does not match the server's certificate.
This problem only appears on Fedora, not on Ubuntu or Mac running the same version of curl. I suppose it must be related to nns then:
curl --version >> curl 7.37.0 (x86_64-redhat-linux-gnu) libcurl/7.37.0 NSS/3.17.3 Basic ECC zlib/1.2.8 libidn/1.28 libssh2/1.4.3 certutil -L >> certutil: function failed: SEC_ERROR_LEGACY_DATABASE: The certificate/key database is in an old, unsupported format.
Any guess to what I am doing wrong?