torsdag 9 juli 2015

Connect to a SSL protected site with openssl using tls

Since many have started removing SSLv3 many now receive this error when connecting to SSL sites using openssl:

# openssl s_client -connect www..example.com:443
CONNECTED(00000003)
25370:error:140790E5:SSL routines:SSL23_WRITE:ssl handshake failure:s23_lib.c:188:


This is easily solved by forcing openssl to use tls instead:

# openssl s_client -connect www.example.com:443 -tls1

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