Getting Closer
It seems I've got a lot more data on the old server than I thought. Nearly everything has been copied over to the interim storage, and much of that has been re-moved to the final (for now) server.
So far, the websites (except some bits referenced from my personal home directory) seem to be restored. I've got all of the Tomcat instances restored, and the updated PHP is in place, so all of the blogs (like this one) should be running. The static stuff should also all be there, and, if I've done it right, everything's got the right permissions, too.
I've gone through the DNS hosted on my registrar, server, and some of the secondary stuff. I'm going to work to get all of the sites moved to the registrar over the next few days; the sites are fairly trivial, and low-traffic. This will reduce my hunting around for the secondary provider and mucking with their different interfaces to make changes. I think there are still a few of the secondaries that are static with the old server IPs there, but for the most part they're done.
I finally got the mail server running. It seems the OS's package manager had another MTA installed, and some update replaced some of the links and files made by my source-installed version; this was a problem with the old server and an in-place update of its OS that kind of started the idea of migrating to the new server, which is why it was partially done. I removed the package version and re-installed my source version. A couple re-tweaks of file permissions and rebuilding some of the underlying databases, and it all seemed OK. I've got the old mailboxes copied to the interim storage, so later I'll put those on the new server.
It looks also like most of the database stuff is working, too. I had to put a faux entry in the /etc/hosts of the server to spoof the name of the old server to the IP of the new one (more accurately, to the localhost IP), which allowed the apps that were looking for the old server to find the new one, until I have time to change their configurations.
Now, except for finding what I missed later, it looks good. I've still got a few GB of data to copy around, and I've got to test some of the extra bits of software (like the web-based e-mail application, the web hit analyzer, and the database backup scripts...), but that at least is not critical to operations.
Well, the backup is probably critical...if I don't do that, this entry will be lost if I have to use the currently last-done back-up...