Linux analytics Apache logs get the top 10 IP access

Apache Log analysis can get a lot of useful information, now to try the most basic, get the most access to the top 10 IP address and number of visits.Since it is statistical, awk is essential, useful and efficient.The command is as follows:awk ' {a[$

httpd2.4.27rpm Bag Making

http2.4.27 RPM Package Production1. Installing Rpm-buildYum-y Install Rpm-build2. Create a spec rule file with a normal userSu-lxhVim Httpd.specName:httpdversion:2.4.27Release:1%{?dist}Summary:compiled from 2.4.27 by LxhGroup:system

9th Application Layer (4) _ Hypertext Transfer Protocol HTTP

5. Hypertext Transfer Protocol HTTP5.1 Uniform Resource Locator URL(1) General form of the URL:://:/① agreement must be written on the following "://", can not be omitted;② host refers to the host's domain name or IP address on the Internet;③ ports

Target Runtime Apache Tomcat v6.0 is not defined. Error resolution

When we were importing a new project with eclipse, assuming that we were using JDK1.7 and TOMCAT7, the imported project would prompt the target runtime Apache Tomcat v6.0 was not in eclipse marker. Defined. The error. The solution is to find the Org.

HTM5 new feature additions and deprecated elements

Today, we talk about one of the questions that will be asked in the front end interview, which is the new feature of HTML5. This is the basic knowledge that must be mastered at the end of learning.New elementsHTML5 has added some more semantic and

How to find prime numbers in PHP

Header ("Content-type:text/html;charset=utf-8");//Set encoding formatThe prime number is a positive integer divisible only by itself and 1, especially when we specify that 1 is not a prime number./* Method One:Define a function to calculate the

PROC GROOVY Parsing JSON

Reference: http://saslist.com/blog/category/json/Download JDK and Groovy1. Install JDK default installation2 Decompression Groovy: to C:\Program Files (x86) \With reference to the http://saslist.com/blog/category/json/about groovy, configure groovy

JS operator and If,switch condition judgment

The operators in JS can be broadly divided into 4 classes: 1 arithmetic operators. 21-dollar operator. 3 comparison operator. 4 logical operators .Arithmetic operators generally refer to the five operators of subtraction: +,-,*,/,%. The variables in

Install PHP extension php-memcached under CentOS

Say bumpy, in order to install this PHP extension php-memcached, even the operating system has changed, from centos5.5 to the centos6.8!!centos5.5 in the installation of PHP extension php-memcached dependent library libmemcached (download source,

Counter-crawler strategy to counter the "cat's Eye Movie" website

0x01 PrefaceTwo days ago in the hundred saw an article called "Counterattack Crawler, front-end engineer brain hole can be how big?" Article, the article from a number of aspects combined with the actual situation, including Cat's Eye movies,

Webpack building a multi-page project (MPA) from scratch

It took about one weeks to build the Webpack project from scratch by referring to Webpack official website and so on. This blog is also the front of the Webpack project to build a supplement.In this wepack project, I realized the following functions.

. NET garbage collection mechanism (ii)

First, the need for GC1, the application of resource operations, usually simply divided into the following steps: Allocate memory for the corresponding resources → initialize memory → use resources → clean up resources → free memory.2, the

Abandoned fish--how long does PHP take to get from getting started to giving up? 15

Today's Lesson: PHP 3-Day Foundation Consolidation video Tutorial "Yan 18"1. Recursive conceptfunction sum ($n) {if ($n = = 1) {return 1;} return $n + sum ($n-1);} echo sum (+); echo "";2. Recursion SkillsRecursive techniques/assumptions-assuming

JQuery UI AutoComplete (1)

1, the main properties of AutoComplete:Source: Three types are supported for specifying the data source in the smart hint drop-down box. Array , which is mainly used for localization data supply, supports two formats: string array ["Choice1",

Center CSS Picture (center horizontally and vertically)

Http://www.51xuediannao.com/html+css/htmlcssjq/css_img_center.htmlCSS Picture Center CSS Image Horizontal center and vertical center two cases, and sometimes need the picture at the same time horizontal vertical center, the following several centers

Summary of HTTP status code summarization and problem experience

rfc

We often encounter 404, 500, 302 and other hints, what exactly do they mean? In addition to these common status codes, what are some of the possible status codes that we have not encountered yet? Here I made a summary, share with you.Common HTTP

Real understanding of referencing & in PHP-variable reference, function reference, object reference

PHP references (that is, the variables or functions, objects, etc. with the & symbol)//The most important is to delete the referenced variable, but the reference variable can not access, but the content is not destroyed in PHP refers to the meaning

Generic encapsulation based on JSON serialization and deserialization

1. Recently, the project has been on the line, spare a few days to the JSON serialization and deserialization to re-encapsulate the I defined as JSONHELP, although Microsoft has done very well. But I want to encapsulate a set of projects that I've

Nginx Reverse proxy (Request forwarding-url matching rule)

Reverse proxies are used in many situations, and load balancing is the most common usage.Nginx , as one of the most popular Web servers, can easily implement reverse proxy.nginx Reverse Proxy Official document: Nginx REVERSE ProxyWhen multiple

Deep understanding of Ajax in jquery

jquery provides some of the quick things you need to do in your daily development, such as load, Ajax, get, and post, and developing Ajax with jquery will be extremely straightforward. This allows developers to focus on the business and user

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