Reset the password on a DL360 and similar iLO account and set networking to DHCP

I wrote this up because I get a lot of decommissioned machines that don't come with the iLO password available, or with a hardcoded IP that isn't appropriate for the network it is on- i.e. a production IP when the iLO is now on the CORP network.

This simple script uses the well documented hponcfg tool to set the password of an existing user (preferably an administrator) and then set the iLO network interface into DHCP mode.

This is not a "hack" or an "exploit". HP assumes that if you have root privileges on the operating system, it is appropriate that you should be able to reconfigure the iLO. I don't necessarily disagree.

This was tested on a DL360 G7 and a DL360 G8. It might work on DL380 as well as other generations of DL360. It must be at least an HP ProLiant.

There is a device driver that exposes a device file to the Linux OS. This device file, when opened by root, can be issued ioctl() commands to do things like read and write the configuration of the iLO board. It is relatively simple. HP wrote the tool, presumably using their own documentation. There is no need to do anything silly like reverse or study their ioctl command set.

Error about invalid user - make sure you specified an existing user as this script does not create a new user, it only resets the password of an existing one. It will be kind and enumerate the users for you though.

Error about permission - make sure you are root

Error about libraries not found or SELinux enforcing things - this means you somehow unset the LD_LIBRARY_PATH, which I set in the script. Please don't muck with that, or copy the library files to /lib64.

Any other errors are probably all your fault, and if you can't solve them, you shouldn't be using this tool.

DO NOT USE THIS ON PRODUCTION SYSTEMS OR SYSTEMS YOU DO NOT OWN AND EXPECT ME TO SAVE YOU !!

RESETTING THE PASSWORD WILL EFFECTIVELY LOCK THE ADMINISTRATOR OUT !!

SETTING DHCP MODE WILL ESSENTIALLY MAKE THE iLO DISAPPEAR TO THE ADMINISTRATOR !!