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kaiser423 writes "I'm looking to integrate some highly critical solutions into what would essentially be a remote, moving datacenter. No operators will be allowed at the site, and we may be able to have a high-speed INMARSAT data link. As a backup, we're planning to have multiple redundant low-speed Iridium data links. Essentially, we're looking to be able to power up/down and reboot some computers, and be able to start/stop some programs. We're willing to write the terminal interfaces necessary for our programs, and possibly do the remote desktop thing with some of our 3rd-party programs. But what is out there that would give us this type of access, work robustly over a high-latency, low-bandwidth stream, and would be tolerant to intermittent network outages? Please hold the pick 2 of the 3 jokes, I know they're contradictory goals; I'm looking for a compromise here! These boxes would regrettably nearly all be running Windows (with some VxWorks). Does anyone out there remember those days, and have any solutions that they preferred?" Read on for a few more details of this reader's requirements.
We've been looking at remote in-band and out-of-band management solutions, and really have found a ton of products. However, the "low-bandwidth" solutions still exceed our potential Iridium bandwidth (~10Kbps). Even if we have the INMARSAT link (192Kbps sustained, higher burst), a number of these solutions would hit that limit. We're starting to look at going old-school with some terminal-style applications, but haven't found much of a market for it; it seems to be a market that died with 56k modems. PC Weasel looks kind of like it might work, but the demo doesn't work for Windows.

PoochieReds asks: "I'm in the market for a couple of PC's that are manageable via serial port. Where can I find a PC that doesnt take a keyboard and monitor to set up the BIOS? I'm really looking to go x86 linux for this job, but if I can't find something that does what I need I may have to fall back to using a SPARC. I'm also not interested in the RealWeasel -- neat product, but I really want an integrated solution (i.e. a serial capable BIOS). Can anyone recommend a reliable, rackmountable, x86 box that is completely manageable via serial port?"

Paul Bristow writes "I've been using a Headless Linux server at home for years and years, but I always find myself putting off doing a distro upgrade. It always means digging out the old graphics card, keyboard and monitor, dusting them off and plugging them in, just so I can have a console to upgrade on. Are there any linux distributions that will allow remote upgrades? You know, log in as root viua ssh, webmin, whatever, run upgrade prog, remotely reboot, off we go. ;-) I know I'm not the only one running a headless server, and I *know* how stable it is, but occasionally RedHat (in my case) come out with a nice new feature that I might want to upgrade for. Also, with just one server it might just be possible, but how do you upgrade a headless server farm?"

Nik posted this relevant article back in March about the PC Weasel, which sounds like a good way to do this, at the cost of a small hardware investment per box. Are there better ones?

I snarfed this from Daily DaemonNews, and it's very cool. If you administer a bunch of PC Unix servers (BSD, Linux, whatever) you probably miss the serial console that proper servers have. Once the OS is booting you can get serial output, but that doesn't help for modifying the BIOS. For that you need a monitor and keyboard. Enter the PC Weasel, an ISA board that pretends to be an MDA card, but actually stuffs the display out a serial port, and takes keyboard input and plugs it in to the keyboard buffer. So no need for a monitor now, just a serial connection. Probably the best thing is that if you buy one, you automatically get a source license for the microcontroller code, so you can customise it all you want.