chmod

Experimental Purpose: To understand the Linux file format with permission settings Experiment steps: 1. Log in as root into Linux 2. Create a new account using the following command Anyuser/usr/sbin/useradd Anyuser 3. Set password for Anyuser

1. May be the/var/run/mysqld/mysql.pid file does not write permission Workaround: Give permission, execute "chown-r mysql:mysql/database" "Chmod-r 755/var/run/mysqld" and restart mysqld! 2. There may already be a MySQL process in progress

Oracle FreeBSD-5.2 Installation Oracle9i Notebooks Source: Freebsdchina Responsible Editor: Leelee [04-7-28 16:30] Author: jxngzhl Admittedly FreeBSD is one of the finest operating systems, but the lack of support for large business databases has

When you use the-EXEC option of the Find command to process matching files, the Find command passes all matching files to exec execution. However, some systems have limits on the length of commands that can be passed to exec, so that an overflow

The failed to open Stream:permission denied in is the Apache run user does not have permission to access the specified file, causing the directory file to open. Prompt when you open the browser Warning:include (/global.php) [function.include]:

At work, it is sometimes necessary to migrate some of the Solaris packages that have already been installed, or to modify the packages that have been installed, but cannot find the original installation package. When the system is upgraded,

the installation of the. Run file is simple, and you can perform the installation simply by adding an executable property to the file Take the VirtualBox installation file Virtualbox-3.1.6-59338-linux_x86.run as an example, just enter the command:

mysql| server as a MySQL administrator, a common goal is to ensure that the server is as running as possible, so that the client can access it at any time. However, it is sometimes best to shut down the server (for example, if you are relocating a

The original ping can be banned, Method One, Make Ubuntu not respond to ping Echo 1 >/proc/sys/net/ipv4/icmp_echo_ignore_all Make Ubuntu respond Ping echo 0 >/proc/sys/net/ipv4/icmp_echo_ignore_all Method Two, This can be accomplished by

Oracle automatically backs up data It is believed that a large number of system administrators are doing the same job every day-backing up the data. Once a day of negligence, and this day the system is precisely the fault, the need for data recovery,

This article is the author installs the PHP Dynamic Web server on the Linux server, the MySQL database Installation configuration Handbook. Through the server installed Apache, Mysql, PHP and other functions to achieve a dynamic PHP to create a full

first, the RPM package installation method steps: 1, find the appropriate software packages, such as soft.version.rpm, download to a directory of this machine; 2, open a terminal, Su-as root user; 3, CD soft.version.rpm in the directory; 4,

Description: This guide will show you how to use Qmail/vpopmail/courier-imap/qmail-scanner/igenus to build a messaging system. 1. Foreword This part of the text is translated from Gentoo forums. You can access the above address to view the

In the study of C before the time of PHP, when the need to use PHP to run the root command, has been fruitless, until one day to search the super this plug-in. With the study of c more days. Found that you can use the C language to wrap the external

Oracle claims to install the Oracle9i database under Linux at least 512MB of memory and at least 1GB or twice times the memory size of the swap space, for the system memory is greater than 2GB of servers, swap space can be between 2gb-4gb. If you

  This article mainly introduces the use of filesystem file system functions in PHP example, the need for friends can refer to the following basename-returns the filename part of the path dirname-the directory part of the return path code is as

Experimental environment: AS4 Minimal Installation Experiment goal: Set up VSFTP server This time we'll learn about the configuration of the VSFTP servers in the Linux system. Here we go! First we install the VSFTP server-side software. The

Because FreeBSD is a multiuser system, processes must be controlled and protected by permissions. For security reasons, it is not possible for a user to kill a process initiated by another user, nor can a process illegally access other users ' file

Several ways the shell script reads data:1. keyboard input, default2. read from the file3. Pass through Pipeline command Functions of Echo:C: No Line changeF: Paper FeedT: Jump latticeN: Line WrapRepresents an escape, for example: "/dev/rmt0"

UNIX® has its own dialect, and its command vocabulary is very large. But you don't need to master all the content at once. This article describes a number of command line combinations that promote your mastery of UNIX languages. When you travel to