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1.使用sudo service iptables status命令时报告没有权限：
[tansheng@localhost ~]$ sudo service iptables status [sudo] password for tansheng: tansheng 不在 sudoers 文件中。此事将被报告。 [tansheng@localhost ~]$
2.从网上搜索得知需要修改/etc/sudoers文件，但是该文件对root用户都只有只读权限，后来查到linux已经预留了专门的命令visudo来编辑该文件：
[tansheng@localhost ~]$ visudo visudo：/etc/sudoers：权限不够 visudo：/etc/sudoers：权限不够 [tansheng@localhost ~]$ su - root 密码： -bash: EDITOR: command not found [root@localhost ~]# visudo visudo：/etc/sudoers.tmp 未更改 [root@localhost ~]#
3.在切换到root用户下，用visudo编辑/etc/sudoers文件，加入一行：tansheng ALL=(ALL) ALL
## 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 ## 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 tansheng ALL=(ALL) ALL ## Same thing without a password # %wheel ALL=(ALL) NOPASSWD: ALL ## Allows members of the users group to mount and unmount the ## cdrom as root
4.一切ok,tansheng用户可以使用sudo命令了
[root@localhost ~]# su - tansheng [tansheng@localhost ~]$ sudo service sshd status [sudo] password for tansheng: openssh-daemon (pid 2390) 正在运行... [tansheng@localhost ~]$
RHEL 6.4中解决xx用户不在sudoers列表，此事将被报告的问题
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原文地址：http://www.cnblogs.com/ttss/p/4195455.html
