unix sudo

Create a common test user test under the root user and switch to the test user. if mkdir or rm-rf is executed, Permissiondenied will appear. the error is caused: this user does not have the root permission [test @ iZ2513wqj05Zapp] $ mkdirte1_kdir: cannotcreatedirectorytest? Permissiondenied [t Create a common test user test under the root user, switch to the test user, and run mkdir or rm-rfPermission denied may occur because the user has no root Permission. [test@iZ2513wqj05Z app]$ mkdir testmk

Describes the format of the sudo configuration file/etc/sudoers.# User privilege specificationRoot ALL = (ALL) ALL# Allow members of group sudo to execute any command after they have# Provided their password# (Note that later entries override this, so you might need to move# It further down)% Sudo ALL = (ALL) ALL## Includedir/etc/sudoers. d# Members of the admin

An error occurred while enabling the sudo command for ordinary users under fedora8 -- Linux general technology-Linux technology and application information. The following is a detailed description. According to the online tutorial, add a user under root all = (ALL) ALL, but return the result after saving and using the SUDO command. >>> Sudoers file: syntax error, line 90

Following last night. decided to update the SVN that comes with the system. The SVN version number that comes with it is 1.7. Crossing Network Svn:http://www.wandisco.com/subversion/download#osx The latest version number is 1.9.13, decided to upgrade under.Unexpectedly due to EI Capitan sip problem Toss a good freshman meeting. Would not have wanted to record. But because sip this egg-ache thing decides still to record. Procedures such as the following:1. Which SVNFind the SVN path that comes wi

When using IOS_BAIDUSDK, you need to use the cocoapods, so you need to follow the steps to continue. However, you will encounter some problems in the process:1. Sudo gem install cocoapods run this error1 rubertdemacbook-pro:~ rubert$ sudo gem install cocoapods2 /system/library/frameworks/ ruby.framework/versions/2.0/usr/lib/ruby/2.0. 0/universal-darwin14/rbconfig.rb:213in0407773 ERROR: ' cocoapods'0 in an

Sudo authorization-general Linux technology-Linux technology and application information. For details, refer to the following section. [Root @ localhost home] # ls-ld file -Rw-r -- 1 root 30 Dec 20 09:03 file I just do Add zxm localhost =/usr/bin/vi/home/file to authorize zxm to only modify file However [Zxm @ localhost home] $ sudo vi file Password: Sorry, user zxm is not allowed to execute '/bi

Can't run roscore sudo, canrunroscore I'm using ubuntu14 LTS. Problems: 1. When run roscore, got a mistake and an advice to ping the localhost. 2. Nearly every time I run a directive with sudo, I got a warning that unable to resolve host. It turns out, the reason is I changed the ubuntu computer name some while ago. Solutions: (must following this order) 1. edit ~ /Etc/hosts Navigate to the file locaiton,

During the ununtu system installation, the system will prompt you to create a default user, for example, the user name is Zhui. By default, this user has certain management functions, that is, the operation with root permission can be performed through the sudo command. Because Ubuntu does not allow users to log on to the system through the root user by default, this default user is an administrator in the actual sense. But how can I grant

The simple principle of sudo commands in CentOS ① Knowledge from the principle of minimal security for Linux optimization: grant the minimum permissions to common users, that is, grant only necessary management system commands. Therefore, the normal user Enn cannot create files: Similarly, you cannot run the Administrator command, such as useradd, to create a common user: In fact, the permissions of common users are minimized. They can onl

CentOS adds sudo permissions to usersWhen sudo is used, the system prompts "xxx is not in the sudoers file. this incident will be reported. XXX is your user name, that is, your user name does not have permission to use sudo. You just need to modify the/etc/sudoers file. The modified method is as follows:1) enter the superuser mode. That is, enter "su-". The syste

In Linux, we use sudo to command to reduce the use of root user time, and improve security, the following is a brief explanation of how to configure, mainly records, afraid to forget. System environment:[Email protected] ~]# cat/etc/redhat-releaseCentOS Linux release 7.3.1611 (Core)[Email protected] ~]# uname-r3.10.0-514.26.2.el7.x86_64Configuration file path:/etc/sudoers[[email protected] ~]# Vim/etc/sudoers (although the implementation of Visu

Ubuntu environment, assuming that this machine name is ABC (machine's hostname), each execution sudo will appear this warning message:Sudo:unable to resolve host ABCAlthough sudo can still be performed normally, it is set directly from/etc/hosts, so that ABC (hostname) can be returned to the 127.0.0.1 IP.Add the host name (hostname) after 127.0.0.1 localhost:127.0.0.1 localhost ABC　　Ubuntu

SudoWhich hosts a user can perform with what other user's identityUseraddJerryUseradd AdminEnter Password: Jerry passwordsudo configuration file/etc/sudoersA sudo entry:Who which_hosts= (runas) commandWho:user_aliasWhich_hosts:host_aliasRunas:runas_aliasCommand:cmnd_aliasAliases must all and only use a combination of uppercase English lettersUser aliasesUser_alias useradmin=User's user nameGroup name, using% bootYou can also include other user aliases

ACL permission Assignment1.setfacl command Set file permissionsSetfacl-m U:USER1:RW root.txtsetfacl-m u:user2:rwx root.txt2.getfacl Command View file permissionsGetfacl Root.txt[Email protected] ~]# getfacl text.txt # file:text.txt# owner:root# group:rootuser::rw-user:wangteng:rw-group::r--mas k::rw-other::r--3. Delete File permissionsSetfacl-x User:user3 Root.txt4. Clear file PermissionsSetfacl-b Root.txt5. Folder permissionsIf you want to assign permissions to a folder, be aware that you must

For Linux users, the normal user's permissions are limited, so in some operations, is required sudo permissions, then how to give ordinary users under Linux sudo permissions. Here's how to explain this. After login our system, if is the ordinary user, we may use the su-root to switch to the root user to carry on the operation, under the root user, the command line enters Visudo carriage return to enter/etc

Ununtu system installation process, the system will be prompted to create a default user, such as the user name: Zhuhui. This default user has a certain management function, that is, you can perform root permissions through the sudo command. Because the Ubuntu system does not allow logging through the root user by default, this default user is the actual administrator. But how do I give sudo permission to a

#创建docker组 [email protected]:~'docker' already exists# Join the current user to the Docker group [email protected]:~$ sudo gpasswd-a ${user} dockeradding user Weiyj to group docker# restart Docker Service [EM AIL protected]:~$ sudo service docker restart# Refresh Docker Group member [email protected]:~$ newgrp- docker# try command ^_^[email protected]:~$ docker imagesrepository TAG

requirementsWe want the root password of the superuser in the hands of a few or only administrators, but also hope that more than one system administrator or the relevant authorized personnel, can complete more and more complex functions related to their own work, and not ultra vires operation caused the system security risks.Minimized: 1) Minimum installation software. 2) Minimize the permissions of the directory file. 3) Minimize user privileges. 4) Minimize program operation permissions.So h

root 889 March 00:03 q.txtDrwxr-xr-x. 4 root root 29 March 00:00 Davy-rw-r--r--. 1 root root 889 March 23:53 1.txt-rwxr-xr-x. 1 root root 117656 March 23:20 LS1Drwxr-xr-x. 3 777 Root 15 March 22:19 Davery[Email protected] ~]#[[email protected] ~]# ID daveryuid=1000 (davery) gid=1003 (GRP1) group =1003 (GRP1), 1006 (User3)[Email protected] ~]#Two, sudo commandsudo is a privilege management mechanism that allows administrators to authorize some ordinar

The sudo tool can help you allocate part of the system management responsibilities to others without having to grant full root access permissions. It is a setuid program. You only need to enter your own password to execute the command after sudo.Use the root account, run/usr/bin/mongodo to edit the list of users who can call the sudo command. The default sudo lis