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I just accidentally changed my var folder permission to 777 and it's sub folders. Do I have to re-install my system? and as far until now it didn't made any trouble for me.

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marked as duplicate by Braiam, Eric Carvalho, Alaa Ali, Florian Diesch, Jorge Castro Jan 1 at 21:22

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Will your system boot? What do you mean by as far until now it didn't made any trouble for me? –  Ross Dec 31 '13 at 20:52
    
I mean it boots and there is no problem with my system. –  user2682025 Dec 31 '13 at 20:55

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up vote 3 down vote accepted

From a 'will it work?' standpoint, everything should be completely fine and your system should function normally.

That being said, now all processes/users/anything will have complete access to anything inside the /var directory, which will make your system MUCH less secure.

If security is not an issue for you, then you can leave your system the way it is.

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The default setting is drwxr-xr-x. To restore this, use cd / then sudo chmod 755 var.

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I know this and I restored some of it's sub-folders too. but I'm still afraid if it makes troubles in future. –  user2682025 Dec 31 '13 at 21:00
    
Just to be extra clear, the default setting for /var is 755. This isn't necessarily true for all its files and subdirs. –  djeikyb Dec 31 '13 at 21:18
    
I know thanks I changed back based on this answer –  user2682025 Dec 31 '13 at 21:26

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