Hello Mathieu, Is it possible to use /home/qserv/.ssh/id_rsa.pub of ccqserv01 to allow ssh key authentication from ccqserv01 to other qserv worker nodes ? I've copied it to : /afs/in2p3.fr/home/f/fjammes/public/id_rsa.pub Thanks Fabrice ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the QSERV-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=QSERV-L&A=1