chmod 400

In unix and linux, the chmod command is used to change the permissions of files and directories. This is a must for unix and linux users to be familiar with many In unix and linux, the chmod command is used to change the permissions of files and

The chmod command can change permissions for all subdirectories, there are 2 waysChange permissions for a file: chmod mode File|dirTo change permissions for all subdirectories: chmod mode dir-r Note that a-R parameter is appendedThe parameter is the

NFS serviceNetwork file systems constitute the basis for sharing files in the Unix world. If you want to disable any shared directories, you can add NFS restrictions, such as locking the/etc/exports file and defining the shared directories in

Linux basics, Linux file and folder permissions, do not have 777 permissions. Online tutorials are too complex?? The プ of the horse flies?.. First, view Linux file permissions Ls-l (General)LL (Ubuntu applies, equal to Ls-al) Second, the

Set permissions for directories and files under Linux, including recursive recursion settings for subdirectoriesThe chmod command can change permissions for all subdirectories, there are 2 waysChange permissions for a file: chmod mode File|dirTo

Debian: Load ssl for apache-Debian information for the Linux release. See the following for details. Apache1.3.28 + php4 + mysql have been created in Debian, And now ssl is added Openssl is required. No, debian should be apt. 1. apt-get install

Step 1: first create a CA certificate, first create an RSA private key for the CA, # cd/etc/pki/CA # opensslgenrsa-des3-outca.key1024 (because ssl_module in windows does not support encryption keys, use opensslgenrs Step 1: first create a CA

to the permission. In the previous section on Linux Users and user master management, in fact, their nature (or the user and user groups appear in the original intention) are convenient rights management. The importance of rights management for

It has been popular for a while to build a Web site by nginx+ PHP, which runs in fastcgi mode. But after a period of consideration, it is often found that there are some 502 errors. In fact, the form of nginx+fastcgiphp is generally not very stable

I. New users and user groupsNote: (This step in fact can not be used.) Just use a different user alone better)1. Create a new user groupsudo addgroup Hadoop2. Create a new usersudo adduser-ingroup Hadoop Hadoop3. Join Hadoop User Rightssudo gedit