The -servername [host] is what causes the SNI extension to be sent. I don't think its sending is put into the debug output. Do you really need it there?
I'm pretty certain that s_server outputs it in debug output.
-Kyle H
On Nov 26, 2017 18:59, "John Jiang" <john.sha.jiang@xxxxxxxxx> wrote:
Hi,I supposed the below command can give me some SNI info, but nothing was found.
The following is my OpenSSL version info,
OpenSSL 1.1.0f 25 May 2017
openssl s_client -debug -tlsextdebug -msg -connect <host:port> -servername <server> < /dev/null | grep "server name"But I found SNI extension with Wireshark while running the above command.Is it possible get SNI info with s_client?Thanks!
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