Why can't I use every possible encryption/key exchange method when using Apache/OpenSSL?

Solution Unverified - Updated -

Issue

  • We get the following error message when we connect by openssl.
# openssl s_client -connect localhost:443 -cert
/etc/httpd/conf.d/rsa.crt -key /etc/httpd/conf.d/rsa.key -cipher
ECDH-RSA-AES128-SHA256
  CONNECTED(00000003)
  140402067711816:error:14077410:SSL
routines:SSL23_GET_SERVER_HELLO:sslv3 alert handshake
failure:s23_clnt.c:744:
[...]

Environment

  • Red Hat Enterprise Linux 6 and Apache/OpenSSL

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