Course Intermediate  27001

Course Introduction：RBAC is one of the most common rights management technologies in commercial systems. RBAC is an idea that can be implemented in any programming language. Its mature and simple control idea is increasingly popular among developers. "ThinkPHP (RBAC) Rights Management Video Tutorial" will introduce the basic knowledge, principles and complete implementation process of RBAC in detail through the theoretical part and practical part, and demonstrate the application scenarios of RBAC.

Course Elementary  31132

Course Introduction：PHP implements administrator login permissions

Course Elementary  65884

Course Introduction：PHP Chinese website's original MySQL tutorial "MySQL Authoritative Development Guide (Tutorial)" is taught by PHP Chinese website teacher Ouyang Ke. This course is a basic MYSQL video tutorial, which mainly explains the basics, construction, data types, basic operations of adding, deleting, modifying, and querying mysql database! Very suitable for mysql beginners to learn!

Course Advanced  32918

Course Introduction：Infinite classification is very common in daily applications, and website classification relies on it. This course will explain in detail the usage scenarios and common implementation methods of infinite classification, to help future learning and use.

Course Introduction：数据库权限分为实例权限级别（SYSADM、SYSCTRL、SYSMAINT、SYSMON）和数据库权限级别（DBAMD、LOAD）。SYSCTRL、SYSMAINT、SYSMON权限级别的用户不能访问数据，DBAMD、LOAD权限级别的用户可以访问数据。 特权是比权限更细力度的控制。 数据库特权： CONNECT

2016-06-07 comment 0  1238

Course Introduction：1. Linux file permissions Speaking of permissions, Linux file calling permissions are divided into three types of permissions for all objects: user, group, and other people. Each object has three permissions: r: read, w: write, x: execute. Madmen like to use numbers to represent them, such as: rwx is the two's complement 111, which is the ten's complement 7. For example, we view the information of all files in the current directory ls-l: 1. The first digit in the circle 1 indicates the type of the file, - indicates an ordinary file, d indicates the directory, and l indicates the link; the next nine digits can be divided into three groups rwx, each group corresponds to all objects with each permission. This means that user has rwx read, write and execute permissions, group has r-x read and execute permissions, o

2024-06-01 comment 0  539

Course Introduction：In the Linux system, permissions are divided into three types: read, write and execute, and different numbers represent different permissions. So what is the permission of 500 in the Linux system? Let's take a look at the specific content. In Linux, 500 represents one of the permissions of a file or directory. In a Linux file system, each file and directory has its own access permissions. These permissions specify a user's read, write, and execute permissions on a file or directory. In Linux systems, permissions are divided into three different categories: owner, group and others. Each category may have read, write, and execute permissions. Numeric notation is used to represent these permissions. In numeric notation, each permission is assigned a value:

2024-02-24 comment 0  1165

Course Introduction：user privilege: select * from session_privs 查看对应表空间 select * from dba_users; -- 确定角色的权限 select * from role_tab_privs ; 包含了授予角色的对象权限 select * from role_role_privs ; 包含了授予另一角色的角色 select * from role_sys_p

2016-06-07 comment 0  1287

Course Introduction：Solutions to permission denied: 1. Incorrect permission settings; 2. File owner or group permissions; 3. The directory does not exist; 4. The file is being used; 5. The file system is read-only; 6. The file is damaged; 7. The file Access control list restrictions; 8. Other security policies or software blocking access; 9. User account restrictions; 10. Operating system restrictions. Detailed introduction: 1. The permission settings are incorrect. Check the permission settings of the file or directory and ensure that the current user has sufficient permissions to access. You can use the "chmod command" to change it, etc.

2024-01-15 comment 0  10657