bwg strategy

0. First of all you have to have a can carry the reptile to calculate the black and white list of the database, of course we choose Redis, single QPS to 20000 +, the leverage, and then you have to not affect the business situation down to verify the crawler, We can through asynchronous read Nginx Access.log to check, the front desk only need to judge the key function points whether the IP in the blacklist can 1. The same IP in a function point two times a second request to calculate the reptile

This article introduces the Web site of the anti-crawler strategy, here I have to write the crawler encountered in the various strategies and countermeasures to summarize the methods. Functionally speaking, reptiles are generally divided into data acquisition, processing, storage three parts. Here we only discuss the Data acquisition section. General website from three aspects of the anti-crawler: User requested headers, user behavior, site director

Ajax| Strategy | Technology platform here I will try to look at the present. NET platform under the AJAX framework, I also try to summarize a method that allows you to be based on many. NET platform, find the right one for you in the AJAX Framework and toolkit, and also hope that you will be rational and purposeful in examining, researching and using these popular ajax-net frameworks. I think the article's approach will help the. NET users who are cu

google| Strategy | ranking | webmaster Google is close to updating every day and will update the results of the rankings every day. Create more links than to Google to submit URLs more vulnerable to Google's inclusion, more links to your site is more important than by submitting the URL of the way included. The update period of PR is not exact for 3 months. In fact, Google spiders each index your URL once, the PR weight is updated once more frequently

, participle of the way will participate in, positive, reverse, statistics, understanding, synonyms, as well as new words and ambiguous words. This time the search engine understanding will be more difficult, thus affecting the ranking of the page; Speaking of which, before I mention in a clean Taobao guest contest Exchange QQ Group 189321234 sent some Taobao hot search keywords out, in the last Dream Jiang and I an interview in a clean Taobao guest said these words in Taobao search a lot, but

it's outside the chain strategy, I briefly drew an external chain graphic case: 　　 The above has shown the approximate path, the site's external chain resources are basically through a series of can bring the actual flow of the open platform to obtain. Compared to the forum signature outside the chain, webmaster tools outside the chain and so for the outside chain of resources more targeted. 1, blog outside the chain Basically are thei

vulnerability, What can a firewall do without patching and hand-handling? I believe you will not do anything except to filter out packets that access the server's TCP80 port (which provides a normal HTTP service), which, of course, will make your HTTP service not open properly (equal to no service provided ...). Here's a loophole for "arguments Themes", talk about your own solution. 1 Implement "Separate open port" access control policy for the host you wish to protect The so-called "separat

The recovery of a missing database file depends to a large extent on the backup strategy used. Based on the flexibility of recovery, this paper discusses the backup and recovery strategy of Oracle8 database, and gives the project development example of the script file which automates the backup process under Windows 2000 environment. Keywords Oracle database backup recovery Introduction With the increasi

Backup strategy for customer deployment, replacing important information related to customers Database backup Scenario Deployment process: Considering that the system is a high-availability system (7x24), it uses Rman to warm up the DB, and the specific backup steps are deployed as follows: 1. Change DB to archive mode, with 2-node archive logs in their respective/orabak/archlog directories 2. Put the DB backup files in the respective/orabak/dbbak

SEM is a marketing activity based on keyword search. As a promoter, what we do is to take care of thousands of key words, pay attention to their quality, conversion rate, CTR, CPC, eat and drink Lazarus, etc. Usually, according to the attributes of different keywords, they will be divided into several groups: brand words, competition words, common words, industry words. Today to talk about Baidu to promote the strategy of bidding words. What is a com

When it comes to the word hot traffic, I think we will soon think of using hot topics or hot events to obtain short-term high flow, in the SEO this way is generally called interception of traffic, that is, the use of SEO methods to get popular keywords in the short term, so as to obtain short-term hot traffic. For example, there are often some hype topics on the Internet, this will lead to a lot of people on the topic of the relevant keyword search, and for some of these topics more sensitive to

overridevoid Seed (schooldbcontext context) { base. Seed (context); } } As can see in the above code, we have created a new class Schooldbinitializer, which are derived from Dropcreatedatabas Ealways initializer.Set db initializer in the configuration file:You can also set DB initializer in the configuration file. For example, to set the default initializer in app. config: XML version= "1.0" encoding= "Utf-8"?> Configuration> appSettings> AddKey= "Databaseinitializerf

actual situation, choose from small to large different types. Iv. Enumerations and collection types Enum (enum) type, you can define up to 65535 different strings to choose from, only and must select one, occupy storage space is one or two bytes, determined by the number of enumeration values; set type, up to 64 members. You can select more than 0 of these to be unqualified, and occupy storage space is one to eight bytes, determined by the number of possible members of the collection. For examp