shadow is a virtual module that is fulfilled by one of the following modules:

Execution Module Used for
shadow Linux
bsd_shadow FreeBSD, OpenBSD, NetBSD
solaris_shadow Solaris-based OSes
win_shadow Windows

Manage the shadow file on Linux systems


If you feel that Salt should be using this module to manage passwords on a minion, and it is using a different module (or gives an error similar to '' is not available), see here.


Returns the default hash used for unset passwords

CLI Example:

salt '*' shadow.default_hash

New in version 2014.7.0.

Delete the password from name user

CLI Example:

salt '*' shadow.del_password username
salt.modules.shadow.gen_password(password, crypt_salt=None, algorithm='sha512')

New in version 2014.7.0.

Generate hashed password


When called this function is called directly via remote-execution, the password argument may be displayed in the system's process list. This may be a security risk on certain systems.

Plaintext password to be hashed.
Crpytographic salt. If not given, a random 8-character salt will be generated.

The following hash algorithms are supported:

  • md5
  • blowfish (not in mainline glibc, only available in distros that add it)
  • sha256
  • sha512 (default)

CLI Example:

salt '*' shadow.gen_password 'I_am_password'
salt '*' shadow.gen_password 'I_am_password' crypt_salt='I_am_salt' algorithm=sha256

Return information for the specified user

CLI Example:

salt '*' root

New in version Carbon.

Lock the password from name user

CLI Example:

salt '*' shadow.lock_password username
salt.modules.shadow.set_date(name, date)

Sets the value for the date the password was last changed to days since the epoch (January 1, 1970). See man chage.

CLI Example:

salt '*' shadow.set_date username 0
salt.modules.shadow.set_expire(name, expire)

Changed in version 2014.7.0.

Sets the value for the date the account expires as days since the epoch (January 1, 1970). Using a value of -1 will clear expiration. See man chage.

CLI Example:

salt '*' shadow.set_expire username -1
salt.modules.shadow.set_inactdays(name, inactdays)

Set the number of days of inactivity after a password has expired before the account is locked. See man chage.

CLI Example:

salt '*' shadow.set_inactdays username 7
salt.modules.shadow.set_maxdays(name, maxdays)

Set the maximum number of days during which a password is valid. See man chage.

CLI Example:

salt '*' shadow.set_maxdays username 90
salt.modules.shadow.set_mindays(name, mindays)

Set the minimum number of days between password changes. See man chage.

CLI Example:

salt '*' shadow.set_mindays username 7
salt.modules.shadow.set_password(name, password, use_usermod=False)

Set the password for a named user. The password must be a properly defined hash. The password hash can be generated with this command:

python -c "import crypt; print crypt.crypt('password', '\$6\$SALTsalt')"

SALTsalt is the 8-character crpytographic salt. Valid characters in the salt are ., /, and any alphanumeric character.

Keep in mind that the $6 represents a sha512 hash, if your OS is using a different hashing algorithm this needs to be changed accordingly

CLI Example:

salt '*' shadow.set_password root '$1$UYCIxa628.9qXjpQCjM4a..'
salt.modules.shadow.set_warndays(name, warndays)

Set the number of days of warning before a password change is required. See man chage.

CLI Example:

salt '*' shadow.set_warndays username 7

New in version Carbon.

Unlock the password from name user

CLI Example:

salt '*' shadow.unlock_password username