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Re: about /dev/shm?

Subject: Re: about /dev/shm?
Date: Mon, 17 Apr 2006 09:51:21 -0500
The shm is used by tmpfs .. and various applications like apache,samba which 
have shared memory segments .. If I am not mistaken in the2.4 or 2.6 they were 
changed in the kernel to 1777 ..
./thanksilaiy

On 4/15/06, Monty Ree <chulmin2@hotmail.com> wrote:> Hello, all.>> As you know, 
/dev/shm is 1777 and attackers used to write his backdoors at> that directory.> 
So I have saw the partition for some time and I can't see any creation of> the 
files.> So I changed this permission to 755, and there was no problem.>> 1. 
What's the role of the /dev/shm?>    shm means shared memory?>> 2. Why this 
directory must be 1777?>    Is there any problem when I change the permission 
to like 755?>> Thanks in advance.>> 
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