Remote administration of a plan9 auth server

Thanks to gdiaz from #plan9 I am now able to add users to my cpu server with drawterm. I needed to add a

srvfs rootfs

to the cpurc and was then able to

mount -c /srv/rootfs /n/root;
bind -b /n/root/mnt /mnt

add the keyfs to my current namespace. Then auth/changeuser works as expected.