Home page logo

bugtraq logo Bugtraq mailing list archives

Re: and now, back to your regularly scheduled discussion topic...
From: patrick () oes amdahl com (Patrick Horgan)
Date: Mon, 8 May 1995 12:09:12 +0800

and now for something completely different (apologies to M. Python):

ObBug:  i have recently discovered that it is possible to re-export an
imported filesystem under Linux.  to illustrate:

hostA --> exports /usr/share to -access=hostB
hostB --> a linux box.  re-exports /usr/share to everyone
hostC --> not implicitly trusted by hostA, mounts /usr/share

aside from any security concerns, this would certainly thrash your nfsd's.
does anyone have any experience with this?  i have only recently discovered
this, and have not had time to peruse it in depth.

Are you sure about this?  Any system using nfs will allow this, but the
directory they mount from hostB is the mount directory, not the /usr/share
form hostA.

  /  These opinions are mine, and not Amdahl's (except by coincidence;).  \
 |                                                       (\                |
 |  Patrick J. Horgan         Amdahl Corporation          \\    Have       |
 |  patrick () amdahl com        1250 East Arques Avenue      \\  _ Sword     | 
 |  Phone : (408)992-2779     P.O. Box 3470 M/S 316         \\/    Will    | 
 |  FAX   : (408)773-0833     Sunnyvale, CA 94088-3470     _/\\     Travel | 

  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]