Hi, We have problem with xrootd TPC, and while investigating we find this line in xrootd.log Config warning: 'xrootd.seclib' not specified; strong authentication disabled! We do have the line in the config file: -------------------------------- # Config TLS xrd.tls /etc/grid-security/xrd/xrdcert.pem /etc/grid-security/xrd/xrdkey.pem xrd.tlsca certdir /etc/grid-security/certificates refresh 8h xrootd.tls capable all -data #sec.level all compatible # Enable Security xrootd.seclib libXrdSec.so ----------------------------------- Also, libXrdSec.so exists: ls -l `locate libXrdSec.so` lrwxrwxrwx. 1 root root 14 Aug 26 2022 /usr/lib64/libXrdSec.so -> libXrdSec-5.so So what could be preventing xrootd to disable strong authentication? Thanks Nagaraj ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1