Linux

Introduction:When you use the ls-l filename command in Linux to view the properties of the filename, 9 Properties of the file are listed, for example: Ls-l/etc/fstab-rw-r--r--1 root root 1102 2013-10-12 02:33/etc/fstabfrom left to right are the

The grep command can search for precise or ambiguous matching information either from text or from a stream of characters sent through a pipe or from a "-" symbol, and the grep family has three commands: Grep,egrep,fgrep.GREP supports regular

Socket connectionsSocket is a communication machine, with this mechanism, the client/server system development work can be carried out on the local stand-alone, can also boast network. The creation and use of sockets differs from the pipeline

1. Revise the control system of the RC (RevisionControlSystem ). Features: 1), simple 2) use the Lock mechanism to prevent multiple developers from simultaneously modifying the same file. 2,Concurrent Version System of CVS

As the company's application demand increases, the number of servers is also increasing. As the number of servers increases, we will find that a puppetmaster is under great pressure and resolution is slow, in addition, there may be errors such as

Operating System: CentOS6.3 Linux can be controlled by using SSH remote connection, or the following command can be executed on the host for projection. [root@localhost ~]# export DISPLAY=ipaddress:0[root@localhost ~]# xhost + This command requires

More and more people are getting started with Linux operating systems, from VPS to flash machine systems for wireless routing (such as OpenWRT and Tomato ), at the same time, the words "Average system Load" or "Load Average" will also be seen on a

I believe many people are tired of reading the color of Linux Command Prompt which has become unchanged. Most people either use the default green or set it to green when using PUTTY, I don't know if someone thinks that the prompt can be set to

How to change Linux folder Permissions To learn more about file attributes, In the shell environment, enter ls-l to view the current directory file. For example: Drwxr-xr-x 2 nsf users 1024 12-10 download file backup They correspond: File Attribute

Web Server stress (load) Testing Tool SiegeAn open-source stress testing tool that allows you to perform concurrent access to multiple users on a WEB Site Based on configurations, recording the corresponding time of all request processes of each

How to view computer hardware device properties in linux# Uname-a # view kernel/OS/CPU information # head-n 1/etc/issue # view OS version # cat/proc/cpuinfo # view CPU information # hostname # view computer name # lspci-TV # list all PCI devices #

Dump backup Restore Dd Data Backup Create a mkisofs Image File Dump backup Dump is mainly used to back up a real file system backup. Although it can also back up a single directory, it does not provide sufficient support for the directory. We

Node. js has an installation file in windows, which can be directly followed by the next step. However, we all know that node. js will always encounter some problems in windows, so we will use linux. We can see that node. js is compiled and

Everything is based on the principle of simplicity, yum/rpm, and never compiled manually :)The deployment environment is based on the CentOS 6.3 x86_64 system.0. Preparations # Update yum [root @ imysql ~] # Yum-y update [root @ imysql ~] # Yum

System Environment: This system is based on the Centos 6.2 32-bit system. Tools: dkms-2.0.17.5-1.noarch.rpm Kernel_ppp_mppe-1.0.2-3dkms.noarch.rpm Pptpd-1.3.4-2.el6.i686.rpm Ppp-2.4.5-17.0.rhel6.i686.rpm First, download the above tool

Recently, HAproxy + keepalived + mysql was used to test the high-availability Linux system cluster.HAProxy is a free proxy software that provides high availability, load balancing, and TCP (Layer 4) and HTTP (Layer 7) applications, with HAProxy, you

Because our company's servers use dell (our company is a mobile game, and all servers are dell), the server models include r410, r420, r710, and r720, the system includes centos 5.x, centos 6.x, redhat 5.x, redhat 6.x, ubuntu 12.04, and ubuntu 12.04.

LLsMP is short for Linux + Litespeed + MySQL + PHP, which means to configure one-click installation packages for Litespeed web server, MySQL Data Server, and PHP on Linux. You only need to execute a few simple commands. The one-click installation

In Linux, dual-nic binding is achieved by virtualizing two NICs into one Nic. In other words, two NICs have the same IP address, and parallel links are aggregated into one logical link. In fact, this technology already exists in Sun and Cisco, known

The Zabbix API can obtain historical data through the json rpc protocol.You can use a script or any tool that supports json rpc to use APIs. Basic request formatThe simplified JSON request of Zabbix API is as follows:{"Jsonrpc": "2.0 ","Method":