Curl with SSL not working on ubuntu server

Solution 1:

You seem to have a typo.

$ openssl s_client -connect evernote.com:433

Port 433 is not open on the remote host, which is why you got error 110 (Connection refused).

Try using port 443 (the standard HTTPS port) instead.

As for curl, I can replicate the problem when using evernote.com, but www.evernote.com works properly (though it sends a 302 redirect to https://evernote.com/.

$ curl https://evernote.com/ -vv
* About to connect() to evernote.com port 443 (#0)
*   Trying 204.154.94.73...
* connected
* Connected to evernote.com (204.154.94.73) port 443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
*   CAfile: /etc/pki/tls/certs/ca-bundle.crt
  CApath: none
* NSS error -5938 (PR_END_OF_FILE_ERROR)
* Encountered end of file
* Closing connection #0
curl: (35) Encountered end of file

This means that the server killed the connection. For whatever reason it really doesn't want to talk to us.

This is probably not something that you can fix.

Solution 2:

Had very similar problem - there was an issue in protocol negotiation, which probably led to some miscommunication with the crypto provider (OpenSSL libs). Try setting the secure protocol explicitly, e.g.:

curl --sslv3 # OR
curl --sslv2 # OR
curl --tlsv1