Cloud Applications

This article mainly introduces the differences between PHP5.5 and the empty function of earlier versions. during development, note that if your local PHP development version is PHP5.5 or later, and the server is lower than PHP5.5, pay more attention

Due to hardware, the root standard time of the machine is not equal to or greater, and the error of one month ranges from several seconds to several minutes. The time is not accurate for the server, which may cause a lot of trouble. For example, you

Timeout is a wonderful Linux command that can control the running time of the program, which is very useful for controlling the running time of the program. Timeout on the CentOS6 platform, from the software package coreutils #

Recently, we are going to build an image server with nginx, which looks at nginx's powerful static file processing capabilities. Because the image volume is relatively large, it runs separately from the web server (which is also nginx). although it

The importance of the Linux system should not be explained, and more IT practitioners and students are now fighting for Linux. But for new Linux users, it is always a confusion about what knowledge Linux has learned and how far it has reached. Today,

Create a swap file mkdir/var/swap # if the sub-swap partition of the installer is not too large. create a folder to store swap partition files, decide on your own chmod700/var/swap # Modify the switch partition folder permission to introduce some

Add sudo to a command to execute the command with the permissions of the Super User. But not any user can use sudo. this command can be used only when the user belongs to the sudo group. If you want to add a user to the sudo group, you can log on to

Linux users, especially Ubuntu or CentOS users, are basically used to clearing terminal screens by using the clear command or Ctrl + L combination shortcut keys. However, this operation does not actually clear the screen. it just gives people the

Linux practice engineer study Note 2: common system management commands redhat-config-network-tui is a unique configuration tool for redhat. After configuring network parameters with this command, writes to

We can modify the/etc/bash. bashrc file (other users are in their respective directories) so that we can automatically load our custom commands when logging on to shell. In the process of using linux, it is inevitable that a long string of commands

There are many terminologies related to Linux. these terms are generally difficult to translate directly into Chinese. if they do not know their pronunciation, they should not read their letters during communication, or they should be said without

CentOS-6.4 wireless internet command line configuration introduction, need a friend can look at CentOS WIFI to be connected to the ssid for "thm", the password is 12345678, authentication method for WPA2-PSK 1. check whether the Wireless NIC driver

One of the most powerful features of Linux is that it has a large number of small command tools, which can be called the most interesting part of it. Among these many useful commands and scripts, you will find that a small number of command tools

The following describes the commands for the basic content of the linux language. because there are many commands for linux, if you want to learn more about the instructions, take a closer look at the following features: compare the differences

This article mainly introduces how to use ubuntu to modify the time, display the hardware time, and synchronize the system clock (how to use the date command). If you need a friend, refer to the following label: Ubuntu 1. the date command is mainly

This article mainly introduces common commands and notes for Liunx system management, including common commands, iptables shielding IP segments, and quick file clearing techniques, for more information about hardware devices and system information,

Sometimes, when updating the system, you do not need to upgrade some software packages. you need to lock the package to a specific version. For example, for mysql-server, to avoid unexpected update errors, the RedhatCentOS label cannot be

This article describes how to install chrome dependency in ubuntu13.04. For more information, see Ubuntu. Ubuntu 13.04 users may encounter dependencies when installing chrome. Note that I download Chrome from the Google official website, rather

For users who want an easy-to-use interface, Ubuntu is a good Linux release, and it can be said to be the best Linux release for a new Linux user. However, this produces some side effects, that is, for the interface and appearance, Canonical company

This article mainly introduces the most secure restart method for Linux server downtime. I can see that this method has shocked the small Editor. I need to press 9 keys at the same time, which is a bit dizzy. read this article ~ Although the Linux