The “server name” is something that the client sends to the server. This allows a single host to server multiple “virtual hosts”
From: John Jiang <john.sha.ji...@gmail.com> Reply-To: openssl-users <openssl-users@openssl.org> Date: Sunday, November 26, 2017 at 9:59 PM To: openssl-users <openssl-users@openssl.org> Subject: [openssl-users] How to get SNI info from s_client debug logs? Hi, The following is my OpenSSL version info, OpenSSL 1.1.0f 25 May 2017 I supposed the below command can give me some SNI info, but nothing was found. 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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