I’d had this sitting around for awhile and thought I’d take another look at it; in this I simply toss out an IPMI Get Device ID command and see what happens. This is an interesting one; the GUID is a Vendor Specific ID – the specification says that it’s “a unique number per device”, and that “a Device GUID should never change over the lifetime of the device”, which makes […]
mega mega mega… chan chan chan….
Or… Notes on the IPMI Protocol Security Model. I wrote in Sold Down the River about the curious aspects of channels and authentication and users and all that stuff. Here’s a slimmed down model… and as a bonus a program that iterates through all the channels, users types, and authentication for a host, which is quite a bit of checking. mega_chan.py In any case I’m almost certain that I […]
Even more IPMI, woohoo!
more IPMI than you can shake a stick at….
I’ve long wanted a Get Channel Cipher Suite command w/o authentication, so I wrote a script to do so; those interested can get it here: https://github.com/zenfish/ipmi/blob/master/ipmi-get-ciphers.py Actually none of the various ipmi tools seem to have this option; I’ve found it useful to use when looking at systems; it emits output similar (if not identical) to ipmitool… spotting those running cipher 0 becomes very, very clear. I should have […]
Booting a dell server from a remote ISO image
This is in various scripts and snippets, but I didn’t see it simply by itself…. People sometimes ask me how to reboot a server and boot it off a remote image via the BMC. Dell’s BMC (that little chip that runs IPMI and other things) can speak DMTF/WSMAN/etc/etc, like just about all the servers in the world. If you have the wsmancli package installed on Linux (or the equiv […]