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| 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.>> _________________________________________________________________> MSN Messenger를 통해 온라인상에 있는 친구와 대화를 나누세요.> http://messenger.msn.co.kr>>
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