server$ # I start bitcoind on the server
server$ bitcoind -testnet -rpcuser='testuser' -rpcpassword='testpass' -rpcport=1234 -rpcallowip=192.168.1.34 -rpcssl=1 -rpcsslcertificatchainfile=test.cert -rpcsslprivatekeyfile=test.pem
bitcoin server starting

client$ # and connect from client
client$ openssl s_client -connect server:1234
CONNECTED(00000003)
140364288071336:error:140790E5:SSL routines:SSL23_WRITE:ssl handshake failure:s23_lib.c:177:
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 0 bytes and written 211 bytes
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
---