Re: About the inotify Mechanism in LINUX

[coderman <coderman () gmail com>]

On Wed, Jul 7, 2010 at 12:42 AM, supercodeing35271 supercodeing35271
<supercodeing35271 () gmail com> wrote:
> I am now thinking on monitor the filesystem in linux, for this reason
> the inotify is a good way.But the problem is that what i want to do is
> not only monitor but a handle.This situation is like that a file in
> system has been changed unusually,now the inotity could tell me this
> but i want to intercept the change before the file been changed.

inotify + FUSE [1], or if you must intercept over existing file
systems kernel audit / security hooks.

increase your nfile limits in /etc/security/limits.conf, if needed
depending on num dirs watched.
echo '
*               soft    nofile          262140
*               hard    nofile          262140
' >> /etc/security/limits.conf

also echo large into /proc/sys/fs/inotify/max_user_instances accordingly.
echo 262140 > /proc/sys/fs/inotify/max_user_instances or set in sysctl at init.

logout/login, maybe reboot (for services). ymmv.


1. FUSE
http://sourceforge.net/projects/fuse/files/

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