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- From: matthews@oberon.umd.edu (Mike Matthews)
- Newsgroups: comp.sys.next.sysadmin
- Subject: Re: NetInfo authentication
- Message-ID: <18169@umd5.umd.edu>
- Date: 27 Jan 93 00:30:36 GMT
- References: <18152@umd5.umd.edu> <1k3lgmINNq80@menudo.uh.edu>
- Sender: news@umd5.umd.edu
- Organization: Los Alamos National Laboratory, NM
- Lines: 38
-
- In article <1k3lgmINNq80@menudo.uh.edu> sears@uh.edu writes:
- >If there is not a "root" account on a level in the Netinfo structure, then
- >that level can only be modified on the machine that serves it.
-
- True. The problem turned out to be many uid 0 accounts (a field account set
- up for class use, and somehow sundiag and sysdiag got there too....).
- Getting rid of all the other uid 0 accounts solved the problem. Jeff Kight
- suggested the fix.
-
- >The root users in these domains can have different passwords if
- >you like and can make for added security since you will have to supply a
- >password to make any changes to that particular domain. This would me
- >that if someone got root on your server, they would only be able to screw
- >with the local netinfo domain on that server (unless all your root
- >passwords in Netinfo are the same!)...
-
- Um, not quite. Root on the local machine can modify whatever it wishes on
- that machine. NetInfo checks the incoming port number, and if it's less than
- 1024, it's considered trusted. If you are not root, yes, you need to enter
- the appropriate root password (with niutil -p or the NetInfo authentication
- panel with the GUIs).
-
- >I would suggest that you use trusted_networks. Otherwise anyone can snarf
- >any of your netinfo data by using tags.
-
- Normally I would but these are on their own network, with no connection to
- anything else.
-
- >Paul S. Sears
- ------
- Mike Matthews, matthews@oberon.umd.edu (NeXTmail accepted)
- ------
- "A fractal is by definition a set for which the Hausdorff Besicovitch
- dimension strictly exceeds the topological dimension."
- -- Mandelbrot, _The Fractal Geometry of Nature_
-
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