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- What's new in Sudo 1.7.0?
-
- * Rewritten parser that converts sudoers into a set of data structures.
- This eliminates a number of ordering issues and makes it possible to
- apply sudoers Defaults entries before searching for the command.
- It also adds support for per-command Defaults specifications.
-
- * Sudoers now supports a #include facility to allow the inclusion of other
- sudoers-format files.
-
- * Sudo's -l (list) flag has been enhanced:
- o applicable Defaults options are now listed
- o a command argument can be specified for testing whether a user
- may run a specific command.
- o a new -U flag can be used in conjunction with "sudo -l" to allow
- root (or a user with "sudo ALL") list another user's privileges.
-
- * A new -g flag has been added to allow the user to specify a
- primary group to run the command as. The sudoers syntax has been
- extended to include a group section in the Runas specification.
-
- * A uid may now be used anywhere a username is valid.
-
- * The "secure_path" run-time Defaults option has been restored.
-
- * Password and group data is now cached for fast lookups.
-
- * The file descriptor at which sudo starts closing all open files is now
- configurable via sudoers and, optionally, the command line.
-
- * Visudo will now warn about aliases that are defined but not used.
-
- * The -i and -s command line flags now take an optional command
- to be run via the shell. Previously, the argument was passed
- to the shell as a script to run.
-
- * Improved LDAP support. SASL authentication may now be used in
- conjunction when connecting to an LDAP server. The krb5_ccname
- parameter in ldap.conf may be used to enable Kerberos.
-
- * Support for /etc/nsswitch.conf. LDAP users may now use nsswitch.conf
- to specify the sudoers order. E.g.:
- sudoers: ldap files
- to check LDAP, then /etc/sudoers. The default is "files", even
- when LDAP support is compiled in. This differs from sudo 1.6
- where LDAP was always consulted first.
-
- * Support for /etc/environment on AIX and Linux. If sudo is run
- with the -i flag, the contents of /etc/environment are used to
- populate the new environment that is passed to the command being
- run.
-
- * If no terminal is available or if the new -A flag is specified,
- sudo will use a helper program to read the password if one is
- configured. Typically, this is a graphical password prompter
- such as ssh-askpass.
-
- * A new Defaults option, "mailfrom" that sets the value of the
- "From:" field in the warning/error mail. If unspecified, the
- login name of the invoking user is used.
-
- * A new Defaults option, "env_file" that refers to a file containing
- environment variables to be set in the command being run.
-
- * A new flag, -n, may be used to indicate that sudo should not
- prompt the user for a password and, instead, exit with an error
- if authentication is required.
-
- * If sudo needs to prompt for a password and it is unable to disable
- echo (and no askpass program is defined), it will refuse to run
- unless the "visiblepw" Defaults option has been specified.
-
- * Prior to version 1.7.0, hitting enter/return at the Password: prompt
- would exit sudo. In sudo 1.7.0 and beyond, this is treated as
- an empty password. To exit sudo, the user must press ^C or ^D
- at the prompt.
-
- * visudo will now check the sudoers file owner and mode in -c (check)
- mode when the -s (strict) flag is specified.
-