Hi Tony,
Thanks for the info. It's our production box so I think I'll set up a cron job to monitor things instead.
regards,
Robert W.Mills
From: Tony Summers [mailto:[log in to unmask]]
Sent: 13 February 2012 13:30
To: Robert Mills; [log in to unmask]
Cc: Sally Atkins; Shailesh Solanki
Subject: RE: [HP9000-L] /dev/null
On our HPUX boxes, /dev/null is owned by user "bin".
I would check the owner of your /dev/null file - as only the owner or someone with root access can change the permissions.
If it's a development server and the problem keeps happening, you could always enabling file system logging.
crw-r--r-- 1 bin bin 46 0x000001 Jan 23 2008 netlog
crw-r--r-- 1 bin bin 46 0x000000 Jan 23 2008 nettrace
crw-rw-rw- 1 bin bin 3 0x000002 Feb 13 13:23 null
-----Original Message-----
From: HP9000 Computer Systems discussion list [mailto:[log in to unmask]] On Behalf Of Robert Mills
Sent: 13 February 2012 13:18
To: [log in to unmask]<mailto:[log in to unmask]>
Subject: [HP9000-L] /dev/null
Greetings to the -L,
We had a problem with /dev/null on our HP-UX (B.10.20) box over the weekend. It was tracked down to /dev/null having the wrong permissions (600 instead of 666).
Who or what (apart from chmod) would have the ability to change it's permissions?
Coming from an MPE/iX background I assumed that it would have the same protection as you find with $NULL but that does not seem to be the case.
Regards,
Robert W.Mills
Analyst/Programmer
Port of Tilbury London Limited
Leslie Ford House, Tilbury Freeport, Essex, RM18 7EH
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