反向代理服务器：Nginx负载均衡与缓存代理ip设置

When reverse proxy meets ipipgo, how much traffic can your server carry?

Engaged in the website operation and maintenance know, the server can not carry large amounts of traffic is like a kiosk was suddenly Netflix card burst. Last week, I saw an e-commerce station to do activities, nginx did not match the load balancing, directly to the dry down. This time the reverse proxy + ipipgo combo punch, more reliable than the temporary addition of servers.

The Secret Weapon of Traffic Distribution

Nginx's load balancing is like a traffic cop at an intersection who has to learn three command gestures: round-robin, weight, and IP hash. There is a pitfall to be aware of - if you use ordinary data center IP as a proxy, it is easy to be identified by the target site. This timeipipgo's Residential IP ResourcesOn the show, especially when doing e-commerce data collection, with their dynamic residential IP rotation, the success rate is directly doubled.

Configuration example:

upstream backend {
    server proxy1 ipipgo_residential_proxy1; server proxy2 ipipgo_residential_proxy2 weight=3; server
    server proxy2 ipipgo_residential_proxy2 weight=3; server backup server backup; ipgo_residential_proxy2 weight=3; ipgo_residential_proxy2
    server backup server backup.
}

缓存代理ip的野路子

I have seen people set the cache time to 30 days, the result is that the price of the product has changed the user to see the same old data. The correct posture should be dynamic and static processing separately, this timeFull protocol support for ipipgoIt comes in handy. For example, to deal with static resources such as images, directly on the cache; and dynamic requests go socks5 proxy, the speed of whoosh.

A Guide to Avoiding Pitfalls (Blood Lessons Edition)

Last year to a video platform to do optimization, cache configuration write a wrong parameter, resulting in the user to see the front-end page is all garbled. Three must check items: ① proxy_cache_key must contain $scheme ② static and dynamic separation do not miss the location matching rules ③ ipipgo proxy remember to turn on the protocol auto-adaptation, especially when dealing with websocket requests.

Practical QA

Q: Why does it slow down after using load balancing?
A：八成是用了劣质代理IP导致链路，换成ipipgo的高质量住宅IP，记得检查health_check配置。

Q: How do I cache dynamic content to make it safe?
A: Set up a short time cache + version number verification, while using ipipgo's IP rotation function to reduce the risk of banning, you can do this:

location /api {
    proxy_pass http://backend;
    proxy_cache_valid 200 10s; proxy_set_header X-Real-IP $ipipgo_rotating_ip;
    proxy_set_header X-Real-IP $ipipgo_rotating_ip;
}

Q: What should I do if I can't carry the sudden traffic?
A: Configure the max_fails and fail_timeout parameters in upstream, with ipipgo's 90 million + IP pool for elastic expansion, saving more money than temporarily adding servers.

Frankly speaking, engage in reverse proxy is like stir-fry, ingredients (server) and seasoning (configuration) is certainly important, but the most critical or fire (proxy IP quality). I've used more than ten proxy service providers, and finally found that ipipgo's residential IP is the most stable, especially when doing business that requires a high degree of anonymity, it feels like wearing a cloak to the server.