One, Linux file system three kinds of identities
1), file owner2), the same group of usersusers of the same user group can access the user group's files;Each account can be added to multiple user groups.Files in the same user group can also be set
One, the directory of files under LinuxSummary: The Linux file system is a hierarchical, tree- like structure in which the topmost layer of the structure is the root directory "/", and then another directory is created in this directory. A deep
1. Basic permissions and permissions management for users1. First of all, we want to manage user rights, we need to know how to view the permissions of a file, we can use the LL command or LS-L command to view the permissions of a file, such as:We
Configuration of the environment:Apache installation directory: D:\www-s\apachePHP Directory: D:\WWW-S\PHP5MySQL directory: d:\www-s\mysqlSite Root: D:\www\htdocs
Users who are specifically running Apache run: Apache-u (not affiliated to any user
Modify folder directory permissions under Linux systemFolder permissions IssuesLinux, Fedora, Ubuntu modify files, folder permissions the same way. A lot of people start to get into Linux when they're having headaches with Linux file permissions
Five big permissions:Ugo Permissions、SetUID SetGID Sticky、ACL Permissions、chattr(Permissions at the file system level),SELINUX ====================== file attributes and Ugo permissions ==================================ls-l list The properties of a
default permissions and hidden permissions for files and directoriesA file has several attributes, including basic permissions such as read-write Run (R, W, X), and whether it is a directory (d) with a file (-) or a link file (l), and so on! The
With the wide application of the mobile network Forum and the discovery of the vulnerability on the Internet, as well as the more and more use of SQL injection attacks, Webshell makes the firewall useless, and a Web server that only makes 80 ports
With the wide application of the mobile network Forum and the discovery of the vulnerability on the Internet, as well as the more and more use of SQL injection attacks, Webshell makes the firewall useless, and a Web server that only makes 80 ports
User and user groups
Linux is a multi-user, multi-tasking operating system, in order for each user to have more confidential file data, so not see the rights management is more important. Linux file ownership and access authorization are
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