Hi Andy, Thanks a lot for your comments. I now understand what you were trying to do... Unfortunately, your suggestion would have worked if it was possible to exchange the certificate store between SSL_CTX. This is only possible for openssl with a version >= 1.1.1 (with the `SSL_CTX_set1_cert_store()` macro) (documentation: https://www.openssl.org/docs/man1.1.1/man3/SSL_CTX_get_cert_store.html) .. As we are running Centos 7 that comes with OpenSSL 1.0.2, this macro does not exist and cannot be used. I have discussed this with @simonmichal and I believe we have found a way around it. I'll keep you updated as I progress... Cheers, Cedric -- Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/pull/1778#issuecomment-1235394012 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