Curl tool description: Curl using proxy IP tutorials

Hands-on teaching you to play with proxy IP with Curl

Engaged in data collection of old drivers know, Curl this tool is like a Swiss army knife, do what all smooth. But direct bare access to the site is easy to be blocked, this time you have to rely on proxy IP to play cover. Today we will nag how to Curl on the proxy vest, and incidentally a reliable proxy service provider.

It's not that hard to install Curl.

Windows old iron go to the official website to download an exe installation package, remember to check the boxAdd to system pathThis option (don't slip and cancel!) . After installing, open cmd and typecurl --versionMac users can see the version number, so they don't have to worry about it, it comes with the system.

 Check if the installation was successful
curl --help | grep proxy

Proxy IP configuration triple axe

The core is just these three parameters:

As a chestnut, use ipipgo's dynamic residential IP:

curl -x http://username:password@gateway.ipipgo.net:9024 https://target.com

Practical cases to go a wave

E-commerce price monitoring scenario:

 Setting a 5-second timeout to prevent jamming
curl -x socks5://user:pass@proxy.ipipgo.com:31028
--max-time 5
-A "Mozilla/5.0"
https://shop.com/product/123

Be careful to addUser-Agent MasqueradeThe client of ipipgo can automatically switch IP pools, and it is convenient to engage in polling and collection.

Guidelines for resuscitation at common rollover scenes

Q: What should I do if I can't connect to the agent?
A: First check the IP whitelisting settings, ipipgo background can be bound to the local IP. then try the test node without authentication:curl -x http://test.ipipgo.net:8080

Q: Speed like a snail's crawl?
A: Change static residential IPs, 35 bucks/month for that package is good for long term tasks. Or use theirTK LineThe cross-country visit can be as fast as 30%.

Q: Always encounter 403 error?
A: Eighty percent of the IP was pulled by the site, dynamic residential packages automatically change IP every hour, the enterprise version supports the IP change by the number of requests.

The Doorway to Choosing a Package

ipipgo the difference between these packages is boss:

• Dynamic standard version: suitable for personal small-scale collection, more than 7 yuan 1G flow rate
• Dynamic Enterprise Edition: with API automatic IP replacement, a must for crawlers!
• Static residence: hang up the number of dedicated, IP three months unchanged

Newbies are advised to take5 Dollar Trial PackPractice (there is an entrance on the official website activity bar), test it well and then go on the official package. Their technical customer service is online 24 hours a day, and when you encounter strange problems, you can directly dump screenshots over and reply faster than a delivery boy.

Lastly, remember to follow the rules of the website when using proxy IPs, so that you don't crash their servers. ipipgo has a smart traffic control function, so set a--limit-rate 500kSpeed limit parameters, hello, hello, hello, hello.