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On Tue, Mar 2, 2010 at 3:44 PM, Mark Reynolds <mark@xxxxxxxxxxxxx> wrote: > Hi, > > I am trying to setup a highly available ssh server on Linux (probably > CentOS 5.4) , i.e. 2 nodes with a floating IP address, if one node > fails then the IP address will move over and sessions will continue > working. I am comfortable with using heartbeat and DRBD to to share > data and manage the floating IP address but wondered if there is any > way of having ssh share session / connection status across 2 nodes. I > may end up achieving this by running the ssh server in a VM (using > Linux and Xen) and migrating that instead but would rather avoid the > over heads. > > I believe the current version of ssh from CentOS (and RedHat) is > openssh-4.3p2-36.el5.i386.rpm) but would be happy to compile a version > from source to meet my requirements. > > I am aware that there is an appliance from ssh that can do this and > wondered if openssh was also capable of a high availability cluster > set up. > > Any thoughts appreciated > > Mark Reynolds > Linux clustering project should allow for the transition of an ssh service between nodes using a single IP address. Your resources are the IP and the SSH service. You may want to consider using a shared disk and storing the SSH config and any keys centrally but not required.
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