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Is it possible to Disable auto mount of External Harddrives or USB's in RHEL.

For security reasons I have to disable this feature.

And when I need it I will enable it back.

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In nautilus? (The file manager) –  warl0ck Dec 30 '12 at 6:48
I think you should manipulate udev's rules. –  PersianGulf Dec 30 '12 at 8:09
How about this service autofs stop and chkconfig autofs off –  OmiPenguin Dec 30 '12 at 10:15
RHEL5 does not auto mount these (at least not on my installations) - what are you referring to? I need to right-click on a symbol on my desktop to mount any such device - after udev made the device appear. –  Nils Dec 30 '12 at 20:56
@Nils Im referring to External Hard drives. Wrong RHEL 5 does automount External hard drive once you mount them atleast mine does. And how do you right click the device which is not mounted as far as I know unmounted devices doesnot appear on Desktop. –  OmiPenguin Dec 31 '12 at 6:19

1 Answer 1

Start with service autofs stop and chkconfig autofs off. You can also disable GNOME's automounting with the following command:

gconftool-2 --direct \ --config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory \ --type bool \ --set /desktop/gnome/volume_manager/automount_drives false

If you also want to disable the automounting of media like CD/DVD drives, you can also add:

gconftool-2 --direct \ --config-source xml:readwrite:/etc/gconf/gconf.xml.mandatory \ --type bool \ --set /desktop/gnome/volume_manager/automount_media false

For further security, you can also add the following line to /etc/modprobe.conf: install usb-storage /bin/true

All of this together should totally disable automounting in RHEL 5/6. This information comes from The NSA's "Guide to the Secure Configuration of RHEL 5", section 2.2.2.

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