Issue #10613 has been updated by Kazuki Yamaguchi. Ben Schmeckpeper wrote: > I am connecting over an SSH tunnel, so the hostname being used for SNI is 127.0.0.1. The server simply returns a 400; my best guess is that it's not configured to use a default certificate for unknown hostnames. (I can make things work by editing /etc/hosts locally, but that's not a viable approach in our production environment.) Connecting to HTTPS server with a raw IP address is not supported currently because the domain name is required for the SNI and also for the certificate verification on connection time. There is a rejected ticket about specifying the IP address to connect, though in Japanese: [Feature #5180]. Editing /etc/hosts and overriding TCPSocket.open are the suggested workaround. Not sure about what is the best way if net/http wants to support such usage, but I can say adding an option to turn off SNI is not on the right track. ---------------------------------------- Bug #10613: SNI is not optional when using TLS https://bugs.ruby-lang.org/issues/10613#change-62086 * Author: Eddy Kim * Status: Assigned * Priority: Normal * Assignee: Yui NARUSE * Target version: * ruby -v: 2.1 * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- If ruby is using openssl with TLS extensions, and we attempt to connect to a server which supports TLS, but not SNI, the connection fails. e.g.: ~~~Ruby uri = URI.parse("https://example.com") # a server that supports TLSv1 but not the TLS extensions http = Net::HTTP.new(uri.host, uri.port) http.use_ssl = true http.ssl_version = :TLSv1 http.verify_mode = OpenSSL::SSL::VERIFY_PEER response = http.get(url) ~~~ ~~~ OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=SSLv3 read server hello B: parse tlsext ~~~ If I patch the `Net::HTTP#connect` method to not assign the hostname to the socket (s), we can avoid this error. ---Files-------------------------------- optional-sni.patch (1019 Bytes) -- https://bugs.ruby-lang.org/ Unsubscribe: <mailto:ruby-core-request / ruby-lang.org?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>