Linux

Introduction to Windows SSH client PuttyIntroduction of PuttyPutty is a free and compact Win32 platform for Telnet,rlogin and SSH clients. Its main program is only 364k, but the functional wire is not inferior to the commercial Telnet tool.Official

first, the kernel timer 1. Basic ConceptsIn some scenarios, we need to do some action after a certain time, but do not want to wait and waste the CPU, this time the timer is a very appropriate mechanism. The timer is used to perform a function at a

What is the difference between the foreground process and the background process in the operating system? What is the characteristic. The background program basically does not interact with the user, the priority level is slightly lowerThe

Each file and directory in a Linux system has access permission to determine who can access and manipulate files and directories in any way. File or directory access is divided into read-only, write-only and executable three kinds. In the case of a

In the process of doing the server program I think the most useful debugging means should be the log system, good log can be intuitive fast positioning program problems, such as system crashes, deadlocks, errors thrown, and so on. How to choose a

In many network applications, FTP (File Transfer Protocol) has a very important position. A very important resource in the Internet is software resources, and most of the various software resources are placed in the FTP server. Like most Internet

Recently read the Linux heap management article, this blog post is to refine and summarize the article.Getting started binary is hard!Linux Heap management strategy1. General statementWhen malloc is called in the main thread, it is discovered that

1, SET-E"Exit immediately if a simple command exits with a Non-zero status."In the code that appears after "Set-e", once the return value is nonzero, the entire script exits immediately.2, Set-o Pipefail"If set, the return value of a pipeline is the

On the creation of a process, Unix takes an interesting and uncommon approach: it separates the creation of the process and the loading of a new binary image. UNIX provides two system calls, fork and exec.To create a process:By default, the kernel

SceneWhen executing the nohup command, there are often the following errors that do not have write permissions.nohup:ignoring input and appending output to ' nohup.out 'nohup:failed to Run command '/etc/nginx_check.sh ': Permission deniedLinux

1 Introduction to Analog delay transferNetem and Tc:netem are a network emulation function module provided by Linux 2.6 and above kernel versions. The function module can be used to simulate complex Internet transmission performance in a

Guide Suppose you want to configure a Linux application to send mail messages from your server or desktop client. mail messages may be email newsletters, status updates (such as cachet), monitoring alerts (such as Monit), disk time (such as

This article mainly draws on and references the following 2 address content, then carries on the test and the execution on own machine, and has made the following

XAMPP directory StructureImportant Files and directoriesFile/directory Usage /opt/lampp/bin/ XAMPP Command Library. For example,/opt/lampp/bin/mysql executable MySQL monitor. /opt/lampp/htdocs/ The Apache

when the webmaster has a lot of site site, not through the Control Panel management of various sites will be very difficult. But in order to meet different needs, we need a personalized solution. The Web site console is a full web interface that

1. Download command wgetWget-c Http://the.url.of/incomplete/fileC support for the continuation of the breakpoint-S,--server-response print server response.--hlep View additional Help2. Load and unload Query Package commandRpm-qa | grep tomcat4 to

Date of the Linux command I used-Display, modify system date TimeThis article link: http://codingstandards.iteye.com/blog/1157513 (reproduced please specify the source)Description of UseThe ATE command can be used to display and modify the system

With a new computer, i7 2600 integrated graphics card, Dell brand machine, the configuration is as follows: Computer Model Dell poweredge 990 mini TowerWindows 7 Professional Edition 64-bit SP1 (DirectX 11) is configured on the hardware

Why is the server so slow? CPU, RAM, and disk I/O resources are exhausted, and ram is used up Machine running is slow because it consumes too many system-specific resources. The main resources of the system include CPU, RAM, disk I/O, and network.

Microsoft Office development tool Visual Studio 2015 Microsoft launched Visual Studio 2015 for Office development tools. It supports Clang compiler and LLVM framework, and can develop applications for Android and iOS. Visual Studio 2015 supports