DOS batch operation telnet to implement automatic Telnet operation

Just took part in the work soon, the project manager released the task to me, the beginning of a few days still a little new sense, but play for a long time, on those few orders, really don't mean, but still have to do, all bored dead. I am lazy, tri

Bind 9 Installation Configuration master slave. It's not difficult, but there are some problems. Took a little time to solve

You intend to install a DNS to use within your company. Because the company's internal development server is also quite a lot. Now all are using IP. But I want to have a domain name to keep in mind. Planning to do master and slave on a gateway and a

Introduction to Jodatime Basics

Joda-time makes time and date values easier to manage, manipulate, and understand. In fact, easy to use is the main design goal of Joda. Other goals include scalability, a complete set of features, and support for multiple calendar systems. And Joda

Using Ldap/ssl for Requisitepro user authentication and management

According to the license agreement, this article is originally published by IBM DeveloperWorks China website, its web site is HTTP://WWW.IBM.COM/DEVELOPERWORKS/CN using Ldap/ssl for Requisitepro user authentication and management

The timeout misunderstanding about Apache

Recently, the number of threads that often Apache on the Web server runs to MaxClients (500), which affects the normal service. Normally, the number of Apache threads does not exceed 100, but it runs to 500, so it must be because some requests to exe

Lucene Introduction

Lucene is a set of open source libraries for Full-text search and search, supported and provided by the Apache Software Foundation. Lucene provides a simple yet powerful application interface for Full-text indexing and searching, and Lucene is a matu

Distributed database Concurrent Query System __ Database

First, the prefaceIn the process of designing an information inquiry system covering the whole province, we have encountered the existing business database in various regions, using Oracle, but the data tables and fields in each region are completely

The difference between indicator "include", "-include" and "Sinclude" in Makefile

Indicator "include", "-include" and "Sinclude" If the file specified by the indicator "include" does not start with a slash (absolute path, such as/usr/src/makefile ...). , and the file is not present in the current directory; make will try to find

JS Dynamic Change Select Select to change the index value of option

document.getElementById ("louyuming"). Options[0].selected=true; function Jsselectisexititem (Objselect, Objitemvalue) {var isexit = false;for (var i = 0; i < objSelect.options.length; i++) {if (Objselect.options[i].value = = Objitemvalue) {Isexit

Node.js and network: Node.js to TCP, UDP, Socket, HTTP and other protocols to achieve and support __JS

The OSI seven-layer model is a standard system and framework for interconnection between different computers or communication systems, including a range of standards and protocols in OSI, such as TCP/IP, UDP, HTTP, and so on, which provide implementa

SSH Agent and Agent forwarding

Take out the ssh-agent, because as the company's springboard program is implemented, Ssh-agent will be used on a large scale or covertly. Understanding how it works helps me understand the deployment and operations involved, and how to safely drop ap

Freemaker code Generator

The author is now graduating six months, began to do projects in the company when the bottom code a series of additions and deletions to check, let me very headache. At first it was a little bit, then I felt really trouble to find code generators on

Socket SELECT

As a TCP service program, and there may be a large number of clients connected, I hope to remember each socket separately Who has the data come in, read it out, put it in a request queue--these things are done with one thread. Another result queue, i

Use zxing to encode and decode barcodes, two-dimensional codes and __

First, add the jar pack <dependency> <groupId>com.google.zxing</groupId> <artifactid>core</ artifactid> <version>3.0.0</version> </dependency> <dependency> <gro

Time format in the United States--complex format date conversion uses the Date.parse ("complex format") method.

Use this method Long time = Date.parse ("Sun Feb 10:31:58 +0800)"; SimpleDateFormat sdf=new SimpleDateFormat ("Yyyy-mm-dd"); Date d = new date (time); System.out.println (Sdf.format (d)); Time format in the United States G Era

Soap Introduction (Webservice Common protocol)

Introduction to Soap The exchange of information between systems within the enterprise system has always been a difficult problem, in the past, DCOM, CORBA and other solutions, but are not perfect, not too complex or flawed. Now, it's more popular s

Bootstrap Validator form submission initial experience based on html__html

Bootstrap Validator is the front-end framework for Twitter's form verification. various addresses Download Address https://github.com/nghuuphuoc/bootstrapvalidator official API http://bv.doc.javake.cn/ Import SSS <link rel= "stylesheet" href

#QNAN, 1 #IND和1. #INF等 "Invalid" floating-point number description and its judgment

In the GIS view found that some of the community can not be normal, through the tracking of abnormal cells to find its base station latitude and longitude of the coordinates are -1. #QNAN00000000000无效值, resulting in plot failure, these communities ar

Potentially dangerous request.querystring values were detected from the client (textarea= "<p>wewqe</p>").

People who have used rich text editors should have encountered this kind of problem, that is, when I save the text on the rich text, there are 2 ways, a Kind of is plain text information, such as: "I wrote a blog today," and the other is pure HTML fo

SSH Jump no password login or execute command

We are using Linux development process, often need to jump between different servers, through SSH, each need to enter the password, more cumbersome, today from the Internet to find the relevant methods, but the experimental process found that there a

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