I wrote a crawler crawl a site a bunch of data, automatically change UA, feel great
But I'm afraid to be blocked by the target website,
The gods give you some better strategies.
Reply content:Crawler automatic User-agent in code implementation only
First, the registered malicious User Agent1, "mozilla/4.0" (compatible; MSIE 7.0; Windows NT 5.1; EMBEDDEDWB 14.52 FROM:HTTP://WWW.BSALSA.COM/EMBEDDEDWB 14.52;. NET CLR 2.0.50727) "
The following is the two records in the Web site log, the User
BlackBerry Java program Development, User Agent is required to manually set, so more flexible.
First Use System.getproperty ("Browser.useragent") to obtain the user agent data as follows:
For example: "mozilla/5.0" (BlackBerry; U BlackBerry 9800;
In the beginning there was NCSA Mosaic, and mosaic called itselfNcsa_mosaic/2.0 (Windows 3.1), And mosaic displayed pictures along with text, and there was much rejoicing.
And behold, then came a new Web browser known as "Mozilla", being short for
The following is a brief introduction to the get_meta_tags (), CURL, and user-agent information comparison in php. if you are interested in this article, please refer. The get_meta_tags () function is used to capture the web page... the following is
' Header ' = ' content-type:application/x-www-form-urlencoded '. "". ' User-agent:post test '. '. ' Content-length: '. strlen ($post _string) +8,
Please explain the meaning of the above remark.
What I know is that when the form is submitted, the
Python uses the Custom user-agent to capture web pages.
This example describes how python uses a Custom user-agent to capture web pages. Share it with you for your reference. The details are as follows:
The following python code uses urllib2 to
Upgrade from Apache2.2 to Apache2.4, found that the original used to restrict some IP and garbage crawler access control rules do not work, the query only found that Apache2.4 began to use Mod_authz_ Host this new module for access control and other
ReproducedBy default, Scrapy acquisition can only use a user-agent, which is easily blocked by the site, the following code can be randomly selected from a pre-defined list of user-agent to collect different pagesAdd the following code in the
Http://doc.scrapy.org/en/1.0/topics/practices.html#bans
1. User Agent Rotation
2. Forbidden Cookies
3. Set the Download_delay greater than 2s
4. Using Google Cache (not understood)
5. Using a rotated IP (not yet)
6. Using the Distributed downloader (
This is a useragent pool inside python, very useful! How to use it specifically?First, install Fake-useragentPip Install Fake-useragentThen, use the methodFrom fake_useragent Import Useragentua = useragent () headers = {' User-agent ':
The user agent string userAgent can implement four identification functions: String useragent
Definition
User proxy string: navigator. userAgent
The HTTP specification clearly stipulates that the browser should send a brief user proxy string,
User-agent: The user agent user will be passed on the Internet as part of the HTTP request header to the server, to identify the user's current environment (such as browser type and version number, as well as operating system information)
A storage-type XSS of Sina SAE can be targeted at applications (Browser User-Agent)
Reference wooyun-2010-066189, not strict repair
Sina sae log center real-time log function storage XSSIn the wooyun-2010-066189, xss is placed on the link to the
See someone posting to consult this question http://zone.wooyun.org/content/17658I'm just going to take the case that refer was executed and I had a lot of casesUsually on the internet we can also modify the browser user-agent and visit any website
Original address: http://blog.csdn.net/andybbc/article/details/50587359HTTP header file User-agent detailedWhat is User-agentUser-agent Chinese name is the user agent, called UA, it is a special string header, so that the server can identify the
A new identityThe first news about IE11 is that it has a new user agent (UA) string:
mozilla/5.0 (IE 11.0; Windows NT 6.3; trident/7.0;. net4.0e;. net4.0c; rv:11.0) Like Gecko
IE11 Remove "MSIE", resulting in the previous JS detection "MSIE" code
Win8 How to resolve Web page compatibility issues with custom user agent strings
The method is as follows:
1, Win +r key combination of "Run" dialog box, input "gpedit.msc", OK;
2, open the Local Group Policy Editor. In the list on the left,
In the past, when blogging, the server downtime, the Web page is not all out, but ping the server when it can ping. Login ssh looked down at top, stunned, average load 13 12 8. Do you think I'm being DDoS for a moment? Look at the next process is
In the micro-credit development of the public account, which is a large number of micro-site development, we need to know that the current browser is a micro-mail built-in browser, then how to judge?
User Agent for micro-trust built-in browsers
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.