> Handshake failed > > The SSL handshake could not be performed. > > Host: <remote host name> Reason: error:14094416:SSL > routines:ssl3_read_bytes:sslv3 alert certificate unknown:state > 23:Application response 500 handshakefailed > > <Our Service Desk ext. number> > generated 2017-04-24 15:28:13 by webwasher4 > Java/1.8.0_112 Webwasher is your proxy right? Yes. ( So it is clearly webwasher that is generating this error message (it says so in the text above!). The OpenSSL error contained in this text occurs when the remote peer sends a fatal alert to the local endpoint. So it looks to me like your proxy has initiated a TLS connection to the remote host but the remote host has rejected the handshake and sent back a "certificate unknown" fatal alert. A certificate unknown alert has the following description in the RFCs: certificate_unknown Some other (unspecified) issue arose in processing the certificate, rendering it unacceptable. So, my guess is that the remote host has requested a client certificate (i.e. client auth) and your proxy has been unable to provide it. Understood, thanks!
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