Protecting filesystems and swap space with Cryptmount


 
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Old 03-06-2008
Protecting filesystems and swap space with Cryptmount

Thu, 06 Mar 2008 16:00:00 GMT
Cryptmount allows you to encrypt both your filesystems and swap space. An encrypted filesystem can be stored on a block device like a normal filesystem -- for example, using /dev/sda2 -- or inside a normal file in another filesystem. This later method is especially handy when you would like to work with an encrypted filesystem without changing your partition tables or working with the Logical Volume Manager (LVM). Cryptmount can also encrypt your swap space so that information from an encrypted filesystem is not inadvertently made less secure by the Linux kernel swapping a process out to disk.


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USERMOUNT(1)						      General Commands Manual						      USERMOUNT(1)

NAME
usermount - A graphical tool to mount, unmount and format filesystems. SYNOPSIS
usermount [ options ] userformat [ device ] [ options ] DESCRIPTION
usermount is a graphical tool to allow users to easily manage removable media, such as floppy disks or zip disks. When the tool starts up, it scans /etc/fstab for all filesystems that have been configured to allow users to mount and unmount them. The filesystem can be mounted or unmounted by pressing the toggle button labeled Mount. Also, if the user has the appropriate permissions for the device, the Format button will be active. This allows the user to format disks using fdformat and create a new filesystem of the type listed (using mkfs with the appropriate option). Naturally, the user will be prompted for confirmation before actually destroying data on the device. Note that if a device is already mounted, the format button is inactive for all entries that share the same device. When run as root, usermount displays all of the entries in /etc/fstab rather than just the ones with the user option. Invoking userformat device allows formatting device, as if by selecting device in the userformat window, and by clicking the Format button. OPTIONS
This program has no command line options of it's own, but it does take the standard X program options like -display and such. See the X(1) man page for some of the common options. FILES
/etc/fstab The system file describing the mountable filesystems. SEE ALSO
mount(8), fdformat(8), mkfs(8), fstab(5) X(1) BUGS
Mount entries with a filesystem type of iso9660 are outright considered CD-ROMs and the format button is always disabled. Mount entries for swap files or partitions are also ignored. A nice feature might be to allow root to turn swap on and off for swap parti- tions. AUTHOR
Otto Hammersmith <otto@redhat.com> Red Hat March 13 2007 USERMOUNT(1)