Re: strange nfs behavior in 2.2.18 and 2.4.0-test12

From: Andreas Dilger (adilger@turbolinux.com)
Date: Thu Dec 21 2000 - 19:15:25 EST


John Covici writes:
> Here is my /etc/exports
>
> / ccs2(rw,no_root_squash)
> /usr ccs2(rw,no_root_squash)
> /usr/src ccs2(rw,no_root_squash)
> /home ccs2(rw,no_root_squash)
> /hard1 ccs2(rw,no_root_squash)
> /hard2 ccs2(rw,no_root_squash)
> /hard3 ccs2(rw,no_root_squash)
> /hard4 ccs2(rw,no_root_squash)
> /usr/bbs ccs2(rw,no_root_squash)

According to your fstab, these are all separate devices, so they should
export OK. You trust this "ccs2" machine a lot, however... Exporting
root with no_root_squash is a big security hole.

> # /etc/fstab: static file system information.
> #
> # <file system> <mount point> <type> <options> <dump> <pass>
> /dev/hda2 / ext2 defaults,errors=remount-ro 1 1
> /dev/hdc2 none swap sw 0 0
> /dev/hdc4 none swap sw 0 0

Having two swaps configured like this on the same disk is a net performance
loss. If anything, you should set one of them to have a lower priority
(via pri=), so that it will only be used if the first one is full.

> /dev/hdb7 none swap sw 0 0
> proc /proc proc defaults 0 0
> /dev/fd0 /floppy auto defaults,user,noauto 0 0
> /dev/cdrom /cdrom iso9660 defaults,ro,user,noauto 0 0
> /dev/hdc3 /usr ext2 rw 1 2
> /dev/hdb6 /usr/bbs ext2 rw 1 2
> /dev/hda3 /usr/src ext2 rw 1 2
> /dev/hda4 /home ext2 rw 1 3
>
> and here are mounts executed out of /etc/rc.local
>
> mount -t vfat /dev/hdb1 /hard2
> mount -t vfat /dev/hdb5 /hard4
> mount -t vfat /dev/hdc1 /hard3
> mount -t vfat /dev/hda1 /hard1

Out of curiosity, why not just put them into /etc/fstab?

Cheers, Andreas

-- 
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert
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