chmod 755

chmod is a command that sets file permissions under Linux, followed by a number that represents the permissions of different users or groups of users.It is usually three digits:The first number indicates the permissions of the file ownerThe second

Differences between 755 and 4755 Chmod is a command for setting file permissions in Linux. The following numbers indicate permissions of different users or user groups. Generally, there are three numbers:The first number indicates the permission

You can enter ls-al on the Linux terminal, you can see such as: -rwx-r--r--(altogether 10 parameters)The first one has nothing to do with chmod, regardless of the parameters.2-4 parameter: belongs to user5-7 parameter: belongs to group8-10

Turn: http://wangshuxing123-126-com.iteye.com/blog/695653 Chmod is a command for setting file permissions in Linux. The following numbers indicate permissions of different users or user groups.   Generally, there are three numbers:The first

mysql| Script | Automatic installation After a few days of testing, finally can be released! 1. Under the MySQL source code directory to create a new script install.sh, add the following code to this script: #!/bin/bash#############################

Linux Apache PHP MySQL Qmail Vpopmail qmaliadmin As needed by the Organization, I spent some time off on May 1, but I don't quite understand the principle. Let's talk about the installation sequence and make a record for myself.However, my patch may

Linux security and Optimization Introduction: We must understand: Minimum permissions + minimum services = maximum security Therefore, whether it is to configure any server, we must disable unused services and set system permissions to the minimum

CentOS Server Security Settings We must understand: Minimum permissions + minimum services = maximum security Therefore, whether it is to configure any server, we must disable unused services and set system permissions to the minimum level so as to

CentOS Server Security SettingsGuideWe must understand: Minimum permissions + minimum services = maximum security. Therefore, whether it is to configure any server, we must disable unused services and minimize system permissions to ensure maximum

One, comment out the system does not need users and user groupsNote: It is not recommended to delete it directly, and it will be cumbersome to re-add it when you need a user.Cp/etc/passwd/etc/passwdbak #修改之前先备份VI/ETC/PASSWD #编辑用户, add # comment off

One, comment out the system does not need users and user groupsNote: It is not recommended to delete it directly, and it will be cumbersome to re-add it when you need a user.Cp/etc/passwd/etc/passwdbak #修改之前先备份VI/ETC/PASSWD #编辑用户, add # comment off

The common methods of server security setting for Linux system and the security optimization of server are introduced in detail to the security settings of Novice Linux system, security is no trivial matter, as a full-time system administrator, to

This section mainly discusses the mathematical related shell script programming. Addition operations Create a new file "addition.sh", enter the following and give it executable permissions. Copy Code code as follows: #!/bin/bash

#!/bin/bash## Install Hadoop 2 using PDSH/PDCP where possible.## Command can be interactive or file-based. This script sets up# a Hadoop 2 cluster with basic configuration. Modify data, log, and PID# directories as desired. Further configure your

OpenCart is an open source storefront designed to provide you with flexible and granular online storefront management. Before you begin, you should have set up a lamp stack on your linode. You should also set the host name.PHP SetIn order to use

Introduction:We must understand: minimal privileges + minimal service = maximum securityTherefore, regardless of the configuration of any server, we must shut down the unused services, set the system permissions to the minimum, so as to ensure

Introduction:We must understand: Minimum privilege + minimum service = maximum securityTherefore, regardless of the configuration of any server, we must shut down the unused services, set the system permissions to the minimum, so as to ensure

Transferred from: http://www.osyunwei.com/archives/754.htmlIntroduction:We must understand: minimal privileges + minimal service = maximum securityTherefore, regardless of the configuration of any server, we must shut down the unused services, set

1. Physical protectionBIOS setup PasswordBoot grub.conf Add password2. System installation is minimized and only base services are installed3. Application data partitioning and system isolation4. Disable boot-up services that do not need to start5.

We must understand: Minimal permissions + minimum service = maximum security Therefore, regardless of the configuration of any server, we must turn off the unused services, set the system permissions to the minimum, so as to ensure the maximum