As much as I like it, I’ve had a problem with Apple Remote Desktop (ARD) for a while now. I administer a fairly large number of macs using it, and since I’ve started doing so, I’ve changed their DNS records. Before, their DNS names were more or less random. Now, they match the ID number stuck to the front of each machine, and can be used to rename the macs after imaging.
Only I can’t make ARD pick up the new DNS addresses.
The first time I asked for advice about it, someone suggested that it was the DNS cache on the server ARD was running for that was keeping the old information, but flushing that cache didn’t do me any good. I even tried deleting the computers from the list, and re-adding them by IP address, but something somewhere is still remembering the old DNS names. I can edit the DNS name for each computer manually, but that makes it a bit meaningless.
The DNS name information must be cached somewhere. It doesn’t seem to be on the client computers, as this problem has persisted through numerous reformats, reimaging and nv/pr-ram resets. It doesn’t seem to be on the server OS’ DNS cache. I’m reluctant to uninstall/reinstall ARD, as there’s a lot of configuration data and management tasks saved on there that I don’t want to lose: but I suspect the information is cached somehow within ARD itself.
The ARD manual says that the DNS name field is set using reverse-dns lookups when the machine is added. But this seems not to be wholly true. Reverse-dns lookups all seem to work correctly, from the web and elsewhere. Perhaps the reverse-dns happens when a machine is originally added, but after that point, it seems to remember details even if the computer they’re associated with is deleted from ARD’s management list.
I’ve thought of a nasty hacky way of doing it, but I’m going to give the apple discussion forums a bit of a chance before I try tackling it. Anyway, if anyone has any suggestions, please be my guest…