iam user

User and Group Management commandsUseradd: Used to create a new userFormat: useradd [options] User name-D Specify the user's home directory-D Show default values-e account expiration date, format: Yyyy-mm-dd.-G Specify an initial user group (must already exist)-g specifies one or more extended user groups-N does not cr

1. User lock: Passwd-l user12. Unlock User: Passwd-u user13. User no Password registration: passwd-d user14. Add to the secondary user group: Gpasswd-a user1 boss (group name)Remove user to Secondary user group: Gpasswd-d user1 bo

A few days ago there is an idea, want to write about the user experience of a little idea, but because the depth of the writing is limited, it can not write out, think of a way, directly from the blog to mention what is the user experience, how to grasp the user experience and improve the user experience. First wrote a

1. Theoretical knowledge2. User and User group management3. Source Package Installation"Theoretical Knowledge"I. User account ManagementAaaA:authentication Certification-who are you?A:authorization Authorization--What can you do?A:audit Audit-What did you do?Two. User Account UID Range command View ID root0->root1-499

The first part: Linux Rights ManagementI. Basic RIGHTSLinux privilege mechanism adopts UGO mode. where u (user) indicates that the owning user, G (Group) indicates that the owning group, O (Other) is in addition to the owning user, the owning group.U, G, o all have read, write, execute (excute) three permissions, so Ugo mode is the three types of nine basic permi

User-managed 2 Important files:/etc/passwd and /etc/shadow. The/etc/passwd file contains the user's information, which does not contain a password:each line in the passwd file represents a user, and each line is divided into 7 fields using ":" as delimited. Use the cat command to view the contents of a passwd file Take the first line: ROOT:X:0:0:ROOT:/ROOT:/BIN/BASHW as an example7 fields represent the mea

User Management Utility commands (version 2), User Management Version 2User management commands Pwck # detect the/etc/passwd file # If the/etc/passwd is incorrect, the system will prompt Vipw # edit the/etc/passwd file. The only difference between vipw and VI will lock the/etc/passwd file. Id # view User id and group information Finger [username] # view

原文出处：http://blog.csdn.net/dba_huangzj/article/details/38944121，专题目录：http://blog.csdn.net/dba_huangzj/article/details/37906349 No person shall, without the consent of the author, publish in the form of "original" or be used for commercial purposes without any liability. Last article: http://blog.csdn.net/dba_huangzj/article/details/38895357 Preface: Logins are used to authorize and access server resources, and you need to map users inside the database if you need to access the database. The

From: http://hi.baidu.com/momodetang/blog/item/8ffe01fdb3a7eb4fd6887dbb.html Due to mssql2000 database errors, I restored an original database to the current SQL statement. Now I came to the user and wanted to delete the restored user, the result shows that "the selected user cannot remove this user because the

Because there are many Linux commands and many options, you can only master some common commands to learn: User and user group management commands1. useradd commandUseradd Add a user-G indicates the Primary Group of the user.-G: Specifies the secondary group of the user.-D.

linux-user and user group base commands and actions Adding users and user groupsAdd User: Useradd admin Add user called admin Add Group: Groupadd Admin Add user group Delete