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NFSproblems.txt
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1998-07-17
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I don't know if this had been around or not, but my newly installed
Slackware 3.0.0 linux shows this behaviour:
ccarik /home/arikb>su -
Password:
ccarik /root# cat /etc/exports
# See exports(5) for a description.
# This file contains a list of all directories exported to other computers.
# It is used by rpc.nfsd and rpc.mountd.
/home/arikb ccarik(ro,root_squash)
ccarik /root# rpc.mountd ; rpc.nfsd
ccarik /root# mount ccarik:/home/arikb /mnt
ccarik /root# cd /mnt
ccarik /mnt# ls -al xxx
-rwxrwxrwx 1 arikb users 29 Apr 7 15:27 xxx*
ccarik /mnt# cat > yyy
yyy: Read-only file system.
ccarik /mnt# cat .rhosts
blabla
blablabla2
blablabla3
ccarik /mnt# cat >> xxx
blablabla4
ccarik /mnt# cat xxx
blabla
blablabla2
blablabla3
blablabla4
ccarik /mnt#
This means also .rhosts exploits, small addition to system scripts, etc.
etc., while the sysamin believes his system is mounted only "read-only"...
Moving over to nfs-server-2.2beta4 solved this one.
--------------------------------------------- ....- --.. ----. -.. --. .
Arik Baratz, Regularus Studentus, iNTP, 4Z9DGE
---------------------------------------------------------------------------
"Your conscious mind is very intelligent, and your unconscious mind
is a hell of a lot smarter than you are."
- Erickson H. Milton
http://ccarik.technion.ac.il/~arikb