IPMI
…For Fun and Profit!
Users
# Let's look at what we currently have before adding anything $ ipmitool user list ID Name Callin Link Auth IPMI Msg Channel Priv Limit 1 true false false Unknown (0x00) 2 ADMIN true false false Unknown (0x00) ... $ ipmitool user set name 3 devopsuser $ ipmitool user list ID Name Callin Link Auth IPMI Msg Channel Priv Limit 1 true false false Unknown (0x00) 2 ADMIN true false false Unknown (0x00) 3 devopsuser true false false Unknown (0x00) ... $ ipmitool user set password 3 Password for user 3: Password for user 3: Set User Password command successful (user 3) $ ipmitool channel setaccess 1 3 link=on ipmi=on callin=on privilege=4 Set User Access (channel 1 id 2) successful. $ ipmitool user enable 3
Serial
In my lab, I began adopting serial as an alternative to IPMI and standard Layer3 management interfaces. Serial comes with its own set of problems. Mostly, redirecting to serial. There are several things to be cognizant of.
- The stage(s) of a system’s boot procedure that are responsible for output redirection
- The inputs and outputs of a system
- The behavior of a system when more than one redirection is possible