Short: 2 Long: sslv2 Tags: Versions Protocols: SSL Added: Mutexed: sslv3 tlsv1 tlsv1.1 tlsv1.2 Requires: TLS See-also: http1.1 http2 Help: Use SSLv2 --- Forces curl to use SSL version 2 when negotiating with a remote SSL server. Sometimes curl is built without SSLv2 support. SSLv2 is widely considered insecure (see RFC 6176).