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katelyn
n00b
Joined: 29 Dec 2005
Posts: 15
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 Posted: Sun Apr 16, 2006 9:36 pm Post subject: /dev/null permissions problem |
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I am having the "/dev/null: permission denied" problem that seems to be quite common from searching the forums. I know the problem is normally caused by udev. However, the suggested solution of unmerging udev, deleting /etc/udev and remerging udev did not work. I know that my udev rules file is correct as it contains the line:
KERNEL=="null", NAME="%k", MODE="0666"
However, although I keep chmod'ing /dev/null to 666, something is still changing the permissions to 600 every day:
| Code: |
shadow ~ $ stat /dev/null
File: `/dev/null'
Size: 0 Blocks: 0 IO Block: 4096 character special file
Device: dh/13d Inode: 1377 Links: 1 Device type: 1,3
Access: (0600/crw-------) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2005-12-11 21:08:43.000000000 +0000
Modify: 2005-12-11 21:08:43.000000000 +0000
Change: 2006-04-16 01:58:33.000000000 +0100
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Does anyone have any idea what keeps changing the permissions back? |
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mirojira
l33t
Joined: 18 Feb 2006
Posts: 685
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| Posted: Mon Apr 17, 2006 12:03 pm Post subject: |
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| I am sorry that I can't help. But I am also waiting for any response. I have the same problem with /dev/hdc. |
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ldima24
n00b
Joined: 08 Jun 2006
Posts: 7
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| Posted: Sat Jun 10, 2006 8:22 pm Post subject: Re: /dev/null permissions problem |
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| katelyn wrote: | I am having the "/dev/null: permission denied" problem that seems to be quite common from searching the forums. I know the problem is normally caused by udev. However, the suggested solution of unmerging udev, deleting /etc/udev and remerging udev did not work. I know that my udev rules file is correct as it contains the line:
KERNEL=="null", NAME="%k", MODE="0666"
However, although I keep chmod'ing /dev/null to 666, something is still changing the permissions to 600 every day:
| Code: |
shadow ~ $ stat /dev/null
File: `/dev/null'
Size: 0 Blocks: 0 IO Block: 4096 character special file
Device: dh/13d Inode: 1377 Links: 1 Device type: 1,3
Access: (0600/crw-------) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2005-12-11 21:08:43.000000000 +0000
Modify: 2005-12-11 21:08:43.000000000 +0000
Change: 2006-04-16 01:58:33.000000000 +0100
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Does anyone have any idea what keeps changing the permissions back? |
If you have syslog-ng and one of your destinations is /dev/null, then everytime syslog-ng logs message to /dev/null, it will change its permissions to 0600. You can avoid it by defining your destination as follows:
| Code: | | destination throw_away { file("/dev/null" perm(0666)); }; |
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Kernel & Hardware
