Hi Andy, I simplified things a bit so we don't rely on DNS at all for the majority of cases (anything that looks like a FQDN) but still handles the case reported by @simonmichal. The problem with using the trick of appending a `.` is that it still relies on DNS - hence exposing the security issue we were trying to avoid in the first place. With this, I believe things are secure by default except in detectable backward compatibility scenarios. Brian -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/pull/731#issuecomment-395617852 ######################################################################## 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