Linux

Pass descriptor and SENDMSG/RECVMSG functions through UNIX domain sockets In the front we introduced UNIX domain socket programming, and more importantly UNIX domain sockets can pass file descriptors between processes on the same host. Let's take

Based on the NTP network pair, Java code The code is as follows: #date-R November 18, 2012 Sunday 19:33 23 cstlinux The tool for using network pairs under the system is ntpdate, and if Ntpdate is not installed, ntpdate must be installed: under

Install Jira under Linux 　First step: Install JDK 1. Download the JDK installation package from the website 2. Upload the JDK installation package to the virtual machine or server: SCP filename (jdk-7u17-linux-x64.tar.gz) root@ a virtual machine

Basic concepts of PPTP First, let's understand what PPTP is. PPTP encapsulates a PPP (point-to-point Protocol) frame into an IP datagram, sent over an IP network such as the Internet or another enterprise-specific intranet. PPTP creates, maintains,

If you often need to access a Web server via a terminal in non-interactive mode (for example, downloading files from a network, or testing a RESTful Network Service interface), you might choose a tool that is wget or curl. With a lot of command-line

If you often run multiple network applications on a Linux desktop or have multiple computers sharing bandwidth at home, you might want to better control the use of bandwidth. Otherwise, when you download a large file using the downloader, the

In the Linux system of SSH port forwarding, there are many kinds of forwarding operations, but also a good use of the port using the program, so today we have to know about the SSH port forwarding specific content it! Typically, two different

Introduction to CAT Commands The original meaning of the cat command is a connection (concatenate) that connects multiple file contents and outputs to the standard output stream (the standard output stream defaults to the screen). In practice, we

Algorithm Linux LOADAVG algorithm Published by: Biti_rainy Today read Linux source code on the CPU load calculation method, while Google search everywhere for reference, dizzy for half a day, finally understand the CPU load calculation method,

RedHat 7.1 Installing the ZABBIX Monitoring program in detail (for Linux novice users) 2017-05-02Installation steps:1.zabbix need to install lamp architecture2. Installing the Zabbix Service3. Initializing the Zabbix system1. Installation

The first bit 7 equals 4+2+1,rwx, the owner has read, write, execute permission;The second bit 5 equals 4+1+0,r-x, the same group of users have read, execute permissions but no write permission;Third bit 5, ditto, is also r-x, other users have read,

1. # echo 1 >/proc/sys/kernel/sysrq2. # echo B >/proc/sysrq-trigger1./proc/sys/kernel/sysrq1 is written to the SysRq file in order to turn on the SysRq feature. According to Linux/documentations/sysrq.txt, SYSRQ represents the Magic System Request

Previous article, Linux interprocess communication--using flow sockets to introduce some basic content about sockets (sockets), and to explain the use of the flow sockets, this article will tell you, the use of datagram sockets.a simple review-what

Through the introduction of the previous article, we know that the SPI Universal interface layer is used to connect the specific SPI device protocol driver and SPI Controller driver, the general interface layer in addition to the protocol driver and

Guide On the internet, the mail client sends mail to the mail server and then routes the message to the correct destination (other customers) , which Mail server Use of the a network application is called the message transfer agent (MTA).

Today on Linux installed XAMPP encountered some trouble, fortunately solved, record, installation does not say, Baidu experience is very detailed, address: http://jingyan.baidu.com/article/afd8f4de7976b034e286e90c.html.1. When the XAMPP starts, an

Now that we've entered the actual combat phase, we've learned the complete process of developing and testing a Linux driver using an example of counting the number of words. The first Linux driver is a count of the number of words.Instead of

Python server environment setup (1) -- local server preparation, python local server At the end of last October, the company went to work for a new company. Due to various problems in the company's old system and the inconvenience of expansion, the

Docker-2 learn more about docker, docker-2dockerDockerBasic concepts of images, containers, and warehousesImages A Docker image is a read-only template.For example, an image can contain a complete CentOS operating system environment where only

Google: Add account to other device login notification function The online world is becoming more and more dangerous. Once Google accounts with various types of personal data are stolen, the consequences are even more unimaginable. To promptly let