Shulou(Shulou.com)06/03 Report--

This article introduces the knowledge of "what to do if the IP display is insufficient when using proxy IP". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. Slow down the crawling speed and reduce the pressure on the target site.

But this can reduce the number of fetches per unit of time. Secondly, by setting proxy IP and other means, we can break through the anti-crawler mechanism and continue to crawl with high frequency, but we need a stable number of proxy IP.

2. According to the common solution provided by ADSL

Generally speaking, when you encounter an inaccessible situation in the crawling process, you can dial the ADSL again to get a new IP, so as to continue the crawling. But in this way, in multi-site and multi-thread crawling, if the crawling of one site is prohibited, it will also affect the crawling of other sites, which will reduce the crawling speed as a whole.

3. Dialing based on ADSL

The difference is that performing ADSL dialing requires two servers, and both servers are used as proxies during the crawl.

Suppose there are two servers An and B that can be used for ADSL dialing. The crawler runs on the C server and uses An as a proxy to access the external network. if it encounters a situation that is not allowed during the crawling process, the crawler immediately converts the agent to B, and then redials A. When access is prohibited again, switch to An as the proxy, dial B, and do so again.

In fact, in the process of grabbing, there are many problems that we need to solve from reality. For most people, crawling is a very troublesome and difficult task. So a lot of software has been developed to solve all kinds of problems in crawlers. It can not only help users solve the crawler crawling problem, but also simplify the operation, and strive to use simple operations to meet the crawling needs of users. It can provide users with a wealth of intellectual property information to meet the needs of users for the use of intellectual property.

This is the end of the content of "what to do if the IP display is insufficient when using the proxy IP". Thank you for reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.