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Bugtraq archives for 1st quarter (Jan-Mar) 1995: Re: /etc/mnttab and Solaris 2.4

Re: /etc/mnttab and Solaris 2.4

Luke Mewburn (lmmelb.cpr.itg.telecom.com.au)
Mon, 9 Jan 1995 09:51:31 +1100 (EST)

> > I ask that because under Solaris 2.4, the /etc/mnttab is like this (666):
> > % ll /etc/mnttab
> > -rw-rw-rw-   1 root     root         409 Jan  6 13:25 /etc/mnttab

>   Ours is mode 644. It has to be readable for things like df to 
>   work. Only root needs to be able to write to the file, when 
>   mounting file systems, changeing quota, and such.

yup, I noticed this too... I can't remember offhand how I stopped the
mnttab having 666 perms; probably a mod to one of the startup files...

>   Note, that atleast on our system, quotaon sets the mode to 600
>   and this break the df command (and quota -v for the user if 
>   memory serves)

I think I tracked this behaviour down to having root umask of 077.
I.e, quotaon sets perms of mnttab to (666 & ~umask).

Luke Mewburn, <lmwerj.com.au>

``Think of it as Evolution in Action''
    -- 'Oath of Fealty', Niven & Pournelle