The node configuration on the display machine will refer to each of the other machines by name. If you rebuild the node configuration using the new names, you will be all set.
I would also recommend that you update from 2.1.2 to 2.4. At that point, you could use the NodeSetupWizard to rebuild the node configuration, which is the easiest way to do so. You do not need to get new certificates, though I would recommend checking their expiration date while you're at it, and request new ones if the expiry date is imminent. You also do not need to do any type of re-registration of the machines. Tom On 5/3/06 1:45 PM, Horwitz, Richard S wrote: > We are running an older version of AG (2.1.2) and need to change the IP > addresses and DNS names of our 4 AG machines running windows (2 XP, 2 2000). > What modifications will need to be made to get the machines running after the > changes? Will the user certificates have to be reissued? Will the newly > names machines have to be reregistered in some way? > >