--- Raymond Norton <admin at lctn.org wrote: When I ssh to one of our servers as a normal user and su to root, none of > the root commands will work; ifconfig, service xx start, etc.. The shell > indicates ifconfig and service cannot be found. Whoami shows I am logged > in as root?? > > > Raymond try `su -` Adding the dash on the end should reset all of your environment variables and whatnot. Right now you're probably logged in as root, but your $PATH is probably not being updated (i.e. /sbin and /usr/sbin isn't being added to the path, so it can't find the system binaries)