@abh3 continuing this debugging. I think there is a fundamental mis-understanding on the expected new behavior in the SciTokens plugin with pass through authorization. I have been running test on the rc4, with no token given. ## Scenerio 1: The configuration line is specified like: ```ofs.authlib libXrdAccSciTokens.so config=/run/stash-origin-auth/scitokens.conf``` In this case, the scitokens library returns a failure because there is no token in the request, which is correct. It tries to “pass through” the authorization, but there is no chained authorization so it returns XrdAccPriv_None https://github.com/xrootd/xrootd/blob/master/src/XrdSciTokens/src/XrdAccSciTokens.cc#L488 It appears that XRootD then returns failure to the client. The old behavior was to then go to the Authfile, I believe. ## Scenerio 2: The configuration line is specified like: ```ofs.authlib ++ libXrdAccSciTokens.so config=/run/stash-origin-auth/scitokens.conf``` It tries to “pass through” the authorization, and there is an object passed through the chain, but it immediately segfaults when trying to call “Access” on the chained auth. https://github.com/xrootd/xrootd/blob/master/src/XrdSciTokens/src/XrdAccSciTokens.cc#L488 -- You are receiving this because you commented. Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1353#issuecomment-754278299 ######################################################################## 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