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> On 23 Jan 2015, at 19:53, Fabrice Jammes <[log in to unmask]> wrote: > > Direct ssh, , key authentication based, access from ccage to the 25 machines would be the simpler option. > > If not possible, I think that having ssh access, using ssh key authentication, from ccage to the 3 build nodes is enough. > And then we would need to have ssh access from the 3 build nodes to the other 23 machines, using ssh key authentication, We plan to put the qserv nodes on a private subnetwork. Those nodes will be accessible from ccage.in2p3.fr and build nodes (ccqserv00[4-6].in2p3.fr) using SSH key authentication for user qserv (see pdf file in attachment). Is it ok for you? One question however: how do you plan to populate the MySQL servers on the cluster? Do you need to have SPS configured on one of the 25 nodes (the qserv master node)? Moreover, please let me know if we must reinstall the build nodes with SL7, and when it can be done. Thanks, Yvan ######################################################################## 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