pmt-fd0ssh(1) pam_mount pmt-fd0ssh(1)Name
pmt-fd0ssh - pipe for password-over-stdin support to ssh
Syntax
pmt-fd0ssh mount_command
Description
This is a wrapper for ssh which reads the password from stdin and sets things up so that ssh will recall the wrapper to get the password,
which will be read from the parent process using a pipe.
It is used by pam_mount(8) to mount SSH-based filesystems, such as ccgfs and sshfs.
See also
This program is imported from hxtools, a tool suite by Jan Engelhardt. Idea by John S. Skogtvedt, http://www.debian-administra-
tion.org/articles/587
Author
This manpage was originally written by Bastian Kleineidam <calvin@debian.org> for the Debian distribution of libpam-mount but may be used
by others.
pam_mount 2008-04-06 pmt-fd0ssh(1)
Check Out this Related Man Page
pmt-ehd(8) pam_mount pmt-ehd(8)Name
pmt-ehd - create an encrypted disk image
Syntax
pmt-ehd [-DFx] [-c fscipher] [-h hash] [-k fscipher_keybits] [-t fstype] -f container_path -s size_in_mb
Options
Mandatory options that are absent are inquired interactively, and pmt-ehd will exit if stdin is not a terminal.
-D Turn on debugging strings.
-F Force operation that would otherwise ask for interactive confirmation. Multiple -F can be specified to apply more force.
-c cipher
The cipher to be used for the filesystem. This can take any value that cryptsetup(8) recognizes, usually in the form of "cipher-
mode[-extras]". Recommended are aes-cbc-essiv:sha256 (this is the default) or aes-xts-essiv:sha256.
-f path
Store the new disk image at path. If the file already exists, pmt-ehd will prompt before overwriting unless -F is given. If path
refers to a symlink, pmt-ehd will act even more cautious.
-h hash
Message digest/hash used for key derivation in the PBKDF2 stage. The default is sha512.
-i cipher
(This option had been removed in pam_mount/pmt_ehd 2.11.)
-k keybits
The keysize for the cipher specified with -c. Some ciphers support multiple keysizes, AES for example is available with at least the
keysizes 192 and 256. Defaults to 256 (to match aes-cbc-essiv). Note that XTS uses two keys, but drawn from the same key material,
so aes-cbc-256 is equivalent to aes-xts-512, and aes-cbc-128 is to aes-xts-256.
-p path
(This option had been removed in pam_mount/pmt_ehd 2.11.)
-s size
The initial size of the encrypted filesystem, in megabytes. This option is ignored when the filesystem is created on a block device.
-t fstype
Filesystem to use for the encrypted filesystem. Defaults to xfs.
-u user
Give the container and fskey files to user (because the program is usually runs as root, and the files would otherwise retain root
ownership).
-x Do not initialize the container with random bytes. This may impact secrecy.
Description
pmt-ehd can be used to create a new encrypted container, and replaces the previous mkehd script as well as any HOWTOs that explain how to
do it manually. Without any arguments, pmt-ehd will interactively ask for all missing parameters. To create a container with a size of 256
MB, use:
pmt-ehd -f /home/user.cont -s 256
pam_mount 2011-Aug-05 pmt-ehd(8)
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