My back-end server is now a new cyrus 2.3.16 machine. I also have a temporary replication server (more on that later). It is now time to upgrade the front-end servers and the db master. Is there a preferred upgrade order? Can two different versions of the front-end co-exist? I would like to upgrade one of the front-end servers, and if after a day or two there are no issues, update the other. I don't really care when the db master is upgraded, but I would like to do it in the correct order (before or after all the front-end servers are upgraded). I am concerned about the "user_deny.db" and Thunderbird 3 problem. For now, people are connecting to 2.2.12 front-end machines. If I upgrade them, will there be a problem? Will a 2.3.17 patch fixing this come out? I mention that the replication server is temporary. I'm using ``borrowed'' SAN disks. One of the old back-end servers is being rebuilt with new OS, Cyrus, iSCSI disks, etc. When the time comes, how do I go about replacing the replication server? Rsync the data, switch in the new server, and run sync_client -u? Or, is there a better way? Thank You. Mike -- Michael D. Sofka sofkam@xxxxxxx C&MT Sr. Systems Programmer, Email, HPC, TeX, Epistemology Rensselaer Polytechnic Institute, Troy, NY. http://www.rpi.edu/~sofkam/ ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/
