[zabbix@zabbix sbin]$ ls -al /etc/sudoers
-r--r----- 1 root root 4085 Jul 11 14:49 /etc/sudoers
添加修改权限以root身份
chmod 640 /etc/sudoers
vim /etc/sudoers
添加如下两行
## Allow root to run any commands anywhere
donald ALL=(ALL) ALL
需要密码sudo
## Same thing without a password
# %wheel ALL=(ALL) NOPASSWD: ALL
%MysqL ALL=(ALL) NOPASSWD: ALL
%zabbix ALL=(ALL) NOPASSWD: ALL
无密码sudo
恢复文件权限
chmod 440 /etc/sudoers
我的sudoers文件：如下
[zabbix@zabbix sbin]$ sudo cat /etc/sudoers
## Sudoers allows particular users to run varIoUs commands as
## the root user,without needing the root password.
##
## Examples are provided at the bottom of the file for collections
## of related commands,which can then be delegated out to particular
## users or groups.
##
## This file must be edited with the 'visudo' command.
## Host Aliases
## Groups of machines. You may prefer to use hostnames (perhaps using
## wildcards for entire domains) or IP addresses instead.
# Host_Alias FILESERVERS = fs1,fs2
# Host_Alias MAILSERVERS = smtp,smtp2
## User Aliases
## These aren't often necessary,as you can use regular groups
## (ie,from files,LDAP,NIS,etc) in this file - just use %groupname
## rather than USERALIAS
# User_Alias ADMINS = jsmith,mikem
## Command Aliases
## These are groups of related commands...
## Networking
# Cmnd_Alias NETWORKING = /sbin/route,/sbin/ifconfig,/bin/ping,/sbin/dhclient,/usr/bin/net,/sbin/iptables,/usr/bin/rfcomm,/usr/bin/wvdial,/sbin/iwconfig,/sbin/mii-tool
## Installation and management of software
# Cmnd_Alias SOFTWARE = /bin/rpm,/usr/bin/up2date,/usr/bin/yum
## Services
# Cmnd_Alias SERVICES = /sbin/service,/sbin/chkconfig
## Updating the locate database
# Cmnd_Alias LOCATE = /usr/bin/updatedb
## Storage
# Cmnd_Alias STORAGE = /sbin/fdisk,/sbin/sfdisk,/sbin/parted,/sbin/partprobe,/bin/mount,/bin/umount
## Delegating permissions
# Cmnd_Alias DELEGATING = /usr/sbin/visudo,/bin/chown,/bin/chmod,/bin/chgrp
## Processes
# Cmnd_Alias PROCESSES = /bin/nice,/bin/kill,/usr/bin/kill,/usr/bin/killall
## Drivers
# Cmnd_Alias DRIVERS = /sbin/modprobe
# Defaults specification
#
# Disable "ssh hostname sudo <cmd>",because it will show the password in clear.
# You have to run "ssh -t hostname sudo <cmd>".
#
Defaults requiretty
#
# Refuse to run if unable to disable echo on the tty. This setting should also be
# changed in order to be able to use sudo without a tty. See requiretty above.
#
Defaults !visiblepw
#
# Preserving HOME has security implications since many programs
# use it when searching for configuration files. Note that HOME
# is already set when the the env_reset option is enabled,so
# this option is only effective for configurations where either
# env_reset is disabled or HOME is present in the env_keep list.
#
Defaults always_set_home
Defaults env_reset
Defaults env_keep = "COLORS DISPLAY HOSTNAME HISTSIZE INPUTRC KDEDIR LS_COLORS"
Defaults env_keep += "MAIL PS1 PS2 QTDIR USERNAME LANG LC_ADDRESS LC_CTYPE"
Defaults env_keep += "LC_COLLATE LC_IDENTIFICATION LC_MEASUREMENT LC_MESSAGES"
Defaults env_keep += "LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER LC_TELEPHONE"
Defaults env_keep += "LC_TIME LC_ALL LANGUAGE LINGUAS _XKB_CHARSET XAUTHORITY"
#
# Adding HOME to env_keep may enable a user to run unrestricted
# commands via sudo.
#
# Defaults env_keep += "HOME"
Defaults secure_path = /sbin:/bin:/usr/sbin:/usr/bin
## Next comes the main part: which users can run what software on
## which machines (the sudoers file can be shared between multiple
## systems).
## Syntax:
##
## user MACHINE=COMMANDS
##
## The COMMANDS section may have other options added to it.
##
## Allow root to run any commands anywhere
root ALL=(ALL) ALL
donald ALL=(ALL) ALL
## Allows members of the 'sys' group to run networking,software,
## service management apps and more.
# %sys ALL = NETWORKING,SOFTWARE,SERVICES,STORAGE,DELEGATING,PROCESSES,LOCATE,DRIVERS
## Allows people in group wheel to run all commands
%wheel ALL=(ALL) ALL
## Same thing without a password
# %wheel ALL=(ALL) NOPASSWD: ALL
%MysqL ALL=(ALL) NOPASSWD: ALL %zabbix ALL=(ALL) NOPASSWD: ALL ## Allows members of the users group to mount and unmount the ## cdrom as root # %users ALL=/sbin/mount /mnt/cdrom,/sbin/umount /mnt/cdrom ## Allows members of the users group to shutdown this system # %users localhost=/sbin/shutdown -h now ## Read drop-in files from /etc/sudoers.d (the # here does not mean a comment) #includedir /etc/sudoers.d
