Sudo

Install

Portsからインストール

# portmaster security/sudo

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                                                x                     Options for sudo 1.7.4.6                       x
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                                                x x        [ ] LDAP               With LDAP support                x x
                                                x x        [ ] INSULTS            With all insults                 x x
                                                x x        [ ] DISABLE_ROOT_SUDO  Disable root sudo                x x
                                                x x        [ ] DISABLE_AUTH       Disable authentication           x x
                                                x x        [ ] NOARGS_SHELL       Enable no arguments shell        x x
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                                                x                       [  OK  ]       Cancel                        x
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Configure

Wheelグループに所属するユーザはパスワード無しでルートへ移行可能

# vi /usr/local/etc/sudoers

## sudoers file.
##
## This file MUST be edited with the 'visudo' command as root.
## Failure to use 'visudo' may result in syntax or file permission errors
## that prevent sudo from running.
##
## See the sudoers man page for the details on how to write a sudoers file.
##

##
## Host alias specification
##
## Groups of machines. These may include host names (optionally with wildcards),
## IP addresses, network numbers or netgroups.
# Host_Alias    WEBSERVERS = www1, www2, www3

##
## User alias specification
##
## Groups of users.  These may consist of user names, uids, Unix groups,
## or netgroups.
# User_Alias    ADMINS = millert, dowdy, mikef

##
## Cmnd alias specification
##
## Groups of commands.  Often used to group related commands together.
# Cmnd_Alias    PROCESSES = /usr/bin/nice, /bin/kill, /usr/bin/renice, \
#                           /usr/bin/pkill, /usr/bin/top

##
## Defaults specification
##
## Uncomment if needed to preserve environmental variables related to the
## FreeBSD pkg_* utilities and fetch.
# Defaults      env_keep += "PKG_PATH PKG_DBDIR PKG_TMPDIR TMPDIR PACKAGEROOT PACKAGESITE PKGDIR FTP_PASSIVE_MODE"
##
## Additionally uncomment if needed to preserve environmental variables
## related to portupgrade
# Defaults      env_keep += "PORTSDIR PORTS_INDEX PORTS_DBDIR PACKAGES PKGTOOLS_CONF"
##
## You may wish to keep some of the following environment variables
## when running commands via sudo.
##
## Locale settings
# Defaults env_keep += "LANG LANGUAGE LINGUAS LC_* _XKB_CHARSET"
##
## Run X applications through sudo; HOME is used to find the
## .Xauthority file.  Note that other programs use HOME to find
## configuration files and this may lead to privilege escalation!
# Defaults env_keep += "HOME"
##
## X11 resource path settings
# Defaults env_keep += "XAPPLRESDIR XFILESEARCHPATH XUSERFILESEARCHPATH"
##
## Desktop path settings
# Defaults env_keep += "QTDIR KDEDIR"
##
## Allow sudo-run commands to inherit the callers' ConsoleKit session
# Defaults env_keep += "XDG_SESSION_COOKIE"
##
## Uncomment to enable special input methods.  Care should be taken as
## this may allow users to subvert the command being run via sudo.
# Defaults env_keep += "XMODIFIERS GTK_IM_MODULE QT_IM_MODULE QT_IM_SWITCHER"
##
## Uncomment to enable logging of a command's output, except for
## sudoreplay and reboot.  Use sudoreplay to play back logged sessions.
# Defaults log_output
# Defaults!/usr/bin/sudoreplay !log_output
# Defaults!/usr/local/bin/sudoreplay !log_output
# Defaults!/sbin/reboot !log_output

##
## Runas alias specification
##

##
## User privilege specification
##
root ALL=(ALL) ALL

## Uncomment to allow members of group wheel to execute any command
# %wheel ALL=(ALL) ALL

## Same thing without a password
# %wheel ALL=(ALL) NOPASSWD: ALL
%wheel  ALL=(ALL) NOPASSWD: SETENV: ALL

## Uncomment to allow members of group sudo to execute any command
# %sudo ALL=(ALL) ALL

## Uncomment to allow any user to run sudo if they know the password
## of the user they are running the command as (root by default).
# Defaults targetpw  # Ask for the password of the target user
# ALL ALL=(ALL) ALL  # WARNING: only use this together with 'Defaults targetpw'

## Read drop-in files from /usr/local/etc/sudoers.d
## (the '#' here does not indicate a comment)
#includedir /usr/local/etc/sudoers.d