unix sudo

This document tags: linux system tips configuration sudo command sudoers file Linux User Rights Internet gossipLet's say you run a Linux system on a computer that you use on your own, like on a laptop, you need to enter a password every time you call sudo, and you'll find it tedious for the long term. Therefore, in this guide, we will describe how to configure the

http://zebralinux.blog.51cto.com/8627088/1369301In daily operation in order to avoid some mis-operation, more secure management system, usually use the user identity is ordinary users, rather than root. When you need to perform some administrator command operation, then switch to the root user to execute.The way a normal user switches to the root user is: Su and sudo.1 , Su-(su is switch user, which is shorthand for switching users)Format:su-l USERNAM

LinuxSudo command and its configuration file/etc/ Sudoers May 4, 11:00:56 Add to favorites I want to contribute LinuxSudo command and its configuration file/etc/ SudoersPair LinuxSome people will know about the sudo command. The core idea of The sudo command is to grant permissions, that is, the user of a command is not yourself, but you have the permission to execute it. Howev

1. First edit the configuration file/etc/sudoers, or directly edit the file by running the export do command, 2. the syntax for configuring the/etc/sudoers configuration line is as follows: User MACHINE = COMMANDS User: Authorized user MACHINE: Authorized host address COMMANDS: Authorization command /Etc/sudoers can also be replaced by an alias, The first column "User_Alias, Host_Alias, Cmnd_Alias" is the keyword, The second column "OPERATORS, MAILSERVERS, SOFTWARE" is the custom alias Column 3:

Excerpt from: http://zxf261.blog.51cto.com/701797/748756Sudo is a commonly used Linux tool that allows ordinary users to use superuser privileges, allowing the system administrator to let ordinary users perform some or all of the root commands, such as HALT,REBOOT,SU and so on. This not only reduces the login and administration time of the root user, but also improves security. sudo is not a substitute for the shell, it is for each command. There are

Sudo: sorry, youmusthaveattytorunsudo encountered a problem a few days ago. calling another shell on one terminal always fails to be executed. later, the error message sudo: sorry, youmusthaveattytorunsud was caught... solve sudo: sorry, you must have a tty to run sudo a few days ago encountered a problem, calling anot

Linux study notes -- usage and differences of su and sudo commands Abstract: This article mainly introduces the functions of the su and sudo commands and the differences between them. And usage I. Differences between the two Su is used for switching between users. Sudo is used by common users to execute specified commands with the root permission. II. Introduct

(wheel) This way, when you switch to root with an account that is not a member of the wheel group, the system rejects it.For example, using Lisi to switch to root, even if you enter the correct root user password, you will be prompted with "incorrect password." [Email protected] ~]$ su-rootPassword:SU: the password is incorrect 2. Elevate permissions with the sudo mechanismUsing the SU command to switch to the ro

Ubuntu Set Current user sudo password free Method 1 # backup/etc/sudoers sudo cp/etc/sudoers. #打开/etc/sudoers sudo visudo # Add LINUXIDC to the end of the file All=nopasswd:all Method 2 1. Back up sudo files sudo cp/etc/sudoers. 2. Add current user to

The flow of sudo to execute a commandSwitches the current user to the Superuser, or to the specified user,The command is then executed as Superuser or as the user it specifies to switch to, and is returned directly to the current user when the execution completes.The specific work process is as follows:When the user executes sudo, the system proactively looks for the/etc/sudoers file to determine if the use

1.sudo Introduction Sudo is a common tool that allows ordinary users to use Superuser privileges under Linux, allowing the system administrator to allow ordinary users to perform some or all of the root commands, such as HALT,REBOOT,SU, and so on. This will not only reduce the root user login and management time, but also improve security. sudo is not a substitu

Sudo Use Ma Peng archive: Learning notes 2017/11/09 NBSP; DirectoryHow to add sudo to a user Permissions ... 21th Chapter Sudu Introduction: ... 22nd Chapters How to authorize: ... 22.1 Authorized User Single command ... 22.2 authorized user Multiple commands ... 42.3 authorize command groups, exclude individual commands from

Designed to illustrate the basic usage and differences of the SU and sudo commands in CentOSKnowledge Reserve 1.Linux is usually not recommended to log in as root directly, too dangerous! However, as a regular user login, and at some point by the authority to suppress, Su and sudo is a good solution;2.su is usually used to temporarily switch to a user identity, to execute some instructions, switching

1. APT (one of the management tools for Ubuntu Linux software package) Apt-cache search # ------ (package search package) Apt-Cache show # ------ (package obtains package information, such as description, size, and Version) Sudo apt-Get install # ------ (package installation package) Sudo apt-Get install # ----- (package--reinstall re-installation package) Sudo a

SudoInstead of using the root user account, unprivileged users can is configured for using administrator permissions on SPECIF IC tasks by using sudo. When sudo is configured, ordinary users has sudo privileges and to use these privileges, they would start the command usin G sudo. So, instead of using commands like Use

Tags: alt edit sudoer file in Visudo sudo config exit parameterLet's review the previous section: User groups Add Groupadd User Group Modification Groupmod User group Delete Groupdel The job creates a group with ID 501 group1, then changes to Group2, and the ID becomes 502, and finally the group is deleted, with the following commands: GROUPADD–G 501 Group1Groupmod–g 502–n group2 group1Groupdel group2In this section, let's ta