Problem using the server name extension

Nikos Mavrogiannopoulos nmav at
Fri Apr 30 09:05:04 CEST 2010

Sam Varshavchik wrote:
> My client is compiled against gnutls 2.8.5. I am connecting to a server
> that's built against OpenSSL 1.0.0.
> The OpenSSL server is failing the handshake with the following error
> message:
> error:1408A0E3:SSL routines:SSL3_GET_CLIENT_HELLO:parse tlsext
> After some Googling around, I remove my client's call to
> gnutls_server_name_set( .. GNUTLS_NAME_DNS .. ), and that makes OpenSSL
> happy.

Cannot verify it with openssl s_server and gnutls 2.9.x (name server
indication code hasn't changed since 2.8). Can you provide a
reproducible example?


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