Daniel B. Thurman wrote:
Tom Horsley wrote:
On Thu, 26 Mar 2009 20:07:54 -0400
brian wrote:
It means some script somewhere did an rm -f on /dev/null
then later some other script redirected output to /dev/null
thus creating it as a regular file.
It looks more like a typo, as another poster said (one L).
Could be, but I had /dev/null deleted on a machine once and
the ensuing fun was really spectacular :-).
Doing "whatever > /dev/null" wasn't too bad, but when
someone said "whatever < /dev/null" amazingly random things
could happen.
The point is, it is not MY scripts doing this! I have had
this bugger for quite some time on F9 and it does not
go away! Grr. I just deleted it every time rkhunter
reports it. Probably just ignore the darn thing....
Do NOT ignore it. I don't think you quite understand what /dev/null
is. It is supposed to be a device, not a file. Somehow it got deleted
and now whenever a script or something does a redirect of its output to
/dev/null, instead of going to a device (and thence into the bit
bucket), it creates a file called /dev/null.
To fix it:
1. Do an "ls -Z /dev/null" and make sure there is no _regular_ file,
directory, symlink, pipe or anything else called "/dev/null". Check the
first character of the permissions. If it's anything other than a "c"
then delete the file (you may need to do an "rm -rf /dev/null" to kill
it).
2. As root, run "MAKEDEV -x null". That should recreate the device
file.
3. Run "ls -Z /dev/null" again and you should see something like:
crw-rw-rw- root root system_u:object_r:null_device_t:s0 /dev/null
displayed. If the first character of the permissions is NOT a "c", it
didn't work.
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