what is file permission

Extension flag of file permission management:-rwsrwxrwxSUID: When a file carries a suid, the file is added with executable permissions by default, and all users have temporary administrator permissions to execute the file. Flag:-rwxrwsrwxSGID: When

: Linux File attributes: the default linux permission is in. we can see that the figure is divided into seven columns. what each column represents? I will explain in detail below. in, we can see the default permissions of the test1 file and the test2

People who are familiar with Linux's 20 most commonly used commands will know that there are indeed many commands in Linux, however, users who have ever played Linux have never been troubled by so many Linux commands, because we only need to master

LINUX file security and permissions when you create a file, the system saves all information about the file, including :? File location .? File type .? File Length .? Which user owns the file and which user can access the file .? I node .? File

Wordpress is a PHP open-source free blog platform system with powerful functions and ease of use. It is favored by many bloggers and has become the most popular blog system for users. Although wordpress has done a good job in terms of security, we

I. preparations before configuration: 1. install vsftpd package yuminstallvsftpd2. view vsftpd startup status chkconfig-listvsftpd3. set vsftpd2345 to the startup chkconfig-level2345vsftpdon4. view the Firewall Status/etc/init. d/iptablesstatus5.

Backup is the simplest way to protect data. This section describes multiple backup methods. To get a consistent backup, make a lock tables lock on the relevant table. You only need one read LOCK. When you copy a file in the database directory, this

I just got in touch with the rsync synchronization Backup Server File software. I am looking for an rsync parameter description today. I will introduce these parameters to you. I hope they will help you. Rsync Installation The latest version of

I wrote a simple php code and uploaded it to the space. However, the error 500 is displayed in apache. Google's solutions basically mean that there is a problem with file permissions. But I have read that the File Permission is 644, And the

You cannot create one. the error of the frm file seems to imply an error in the file permission of the operating system or other reasons, but in fact, none of these are actually. In fact, this mysql error has been reported as a mysql bug and has

Mysql DATA export Permissions There are many ways to export mysql data, such as mysqldump, mysql-e 'SQL'> file, which can easily export data. However, when using a common user to export data, an error occurred. 1 Select * into outfile

MySQL Security Guide (2) 2.1.3 database and table permissions the following permissions apply to database and table operations. MySQL Security Guide (2) 2.1.3 database and table permissions The following permissions apply to database and table

Child process Asynchronous cleanupSIGCHLD signal: When a child process terminates, it is automatically sent to the parent process, writes this signal processing routine, asynchronously clears the child process#include

Find some common examples of common parameters and some specific usage and considerations.1. Use the name option:The file name option is the most common option for the Find command, either used alone or in conjunction with other options.  You can

I. File System The purpose of a file system is to organize a file into a logical hierarchy that contains directories, connections, and other physical block devices. It does not care about the structure of the underlying physical block device. When

Error environment: rehl x. x. If you run the sudo command under a common user, the following error occurs: llhtiger is not in the sudoers file. This incident will be reported. solution: I,$Whereis sudoers ------- locate the file location. The

Features:Searches for a file in the directory structure and performs the specified action. This command provides quite a few look-up conditions and is powerful.Syntax:Find start directory looking for conditional actionsDescription:The Find command

Article Title: Linux Security Basics. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. 1. SYSTEM

The LS command is the most commonly used command in Linux. The LS command is short for list. By default, LS is used to print the list of the current directory. If ls specifies other directories, the list of files and folders in the specified

# VSFTPD runs independently. NOlisten = YES # Anonymous Users are allowed to log on, NOanonymous_enable = YES # Allow anonymous users to create a folder anon_mkdir_write_enable = YES # Run anonymous users to upload files anon_upload_enable = YES #