Thanks @smithdh for the information. I thought the xrootd protocol does use TLS? Or are you saying the client first connects without TLS, does some negotiation or something, and then switches to TLS? -- Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1951#issuecomment-1466850348 You are receiving this because you are subscribed to this thread. Message ID: <[log in to unmask]> ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1