rudi@bu-it.bu.edu (Kevin Ruderman) (09/21/90)
I need to export a file system and allow the NFS client to have root privs.
In _Managing the Operating System_ chapter 10 NFS page 31 it explicitly
says UID 0 clients get mapped to the AIX kernel variable "nobody" (-2).
NFS R4 (?) allows specifications of the form:
/export/stuff -root=machine1:machine2...
but this is not available in my version (1.2).
Questions:
1) Is there a way around this? I do not want to change the
kernel variable "nobody" to 0. This seems really dangerous?
2) How bad is it if I change "nobody" to 0? I know the security risks
involved in allowing root access. I only want to do it for specific
machines, not all NFS client machines if I change "nobody".
Who else uses "nobody" and what do they use it for?
3) Where can I get info on changing kernel variables. I have looked in
_Managing the OS_ and the Tech Ref vols 1 & 2 without any luck.
If I must change the variable can I do it with a patch file or must
I use a kernel debugger and just blast the location? The symbol is
easy to find with "nm".
Thanks, Kevin
Kevin Ruderman
Systems Programmer
Information Technology
Boston University