
When a web page suddenly turns 502, it may be a server jerk.
Those of you who regularly swipe through web pages will have seen this image before - a white screen suddenly pops up with"502 Bad Gateway". Don't be in a hurry to smash your keyboard at this point, to put it bluntly, the web server you're trying to accesslit. drop the chain at the last minute (idiom); fig. to drop out of practiceThe web server is just like a courier relay station. Imagine a web server is like a courier relay station, when one of the relay station burst paralyzed, your request package is stuck halfway.
The traditional operation is to repeatedly refresh the page, but this is easy to trigger the server protection mechanism. Last year, an e-commerce friend encountered this, their company's background system frequently reported 502, the results were found to be a regional server room network fluctuations. This time if you use theProxy IP switching methodIt's like having an alternate channel for network requests, perfectly bypassing the server node that's in trouble.
Three Tips to Bypass 502 with Proxy IPs
The first trick: manually switching IP addresses
Find the Proxy Server option in your browser settings and fill in the FromipipgoFor example, if you are using Firefox, in Settings - General - Network Settings, put in the IP:Port provided by ipipgo. This trick is good for temporary emergencies, similar to changing a tire manually.
Linux system terminal example (remember to replace with real IP)
export http_proxy="http://112.85.123.67:8080"
curl -v https://你的目标网站
Tip #2: Automatically rotate the IP pool
Recommended for ipipgoDynamic API InterfaceIf you are looking for an IP pool with millions of available IPs, you can write a simple script to automatically change the IP every 5 minutes, which is much more reliable than doing it manually. Here's a Python example:
import requests
def get_new_proxy(): return requests.get("").json()['proxy'].
return requests.get("https://api.ipipgo.com/getproxy").json()['proxy']
while True.
Try: proxy = {"http": get_new_proxy()
proxy = {"http": get_new_proxy(), "https": get_new_proxy()}
resp = requests.get('destination URL', proxies=proxy, timeout=10)
print(resp.text)
print(resp.text)
except Exception as e.
print(f "Error {e} encountered, switching IPs...")
Tip #3: Distributed Request Strategy
When doing data collection, it is possible to initiate requests with multiple ipipgo IPs at the same time. Here's a great trick: save the IP list as a file, use the xargs command to process it in parallel, and use whichever IP gets through.
Save the list of IPs obtained by ipipgo as ip.txt
cat ip.txt | xargs -P 10 -I {} curl -x {} -m 5 Destination URL
Guidelines on demining of common problems
| problematic phenomenon | Screening methods | Recommended Programs |
|---|---|---|
| Still 502 even after changing IP. | Check if the proxy IP is blocked by the target website | Using ipipgo'sHigh Stash IPservice |
| Connection slows down | Testing IP nodes in different geographic locations | Open ipipgo'sIntelligent Routingfunctionality |
| https website error | Confirm that the proxy supports SSL encrypted transmission | Go with ipipgo'sEnterprise Encryption Agent |
Choosing the right service provider is the hard part
Many of the proxy IP services on the market are like street food, and they often make a mess when you use them. ipipgo's IP pool has two killer features:24-hour survival testrespond in singingCarrier-grade bandwidth. Their tech guy told me that every IP has to pass three hurdles before going live - connectivity test, speed test, anonymity test, which is stricter than security check.
Last time there was a team doing live data monitoring, it turned out that they had to manually deal with over 20 502 errors per hour. Switch to ipipgoAutomatic package switchingAfter that, the system itself can cut to the normal node within 0.5 seconds, and the operation and maintenance guy can finally get off work on time.
Hands-on Q&A that even a novice can understand
Q: Will the proxy IP be expensive? Can students afford it?
A: ipipgo has for individual developersIdle Time Traffic Pack, half off traffic from 8pm to 8am. You can also whore out a 3-day trial with student authentication, which is enough for final assignments.
Q: How do I set up a proxy on my cell phone?
A: Take Android as an example: Settings - WLAN - Long press the current WiFi - Modify Network - Advanced Options - Proxy Selector, then fill in the IP and port provided by ipipgo. Note that public WiFi may not allow you to change this setting.
Q: Will Internet Banking be insecure if I use a proxy IP?
A: Important Account RecommendationsDon't go by proxy.Client support for ipipgo!sub-application agentYou can set up a proxy that only allows browsers to go through the proxy and other applications to connect directly to it. It's like arranging special lanes for different vehicles, each going its own way without interfering with the other.
At the end of the day, dealing with 502 errors is like treating water; you can't just block it without removing it. Using a reliable proxy IP service such as ipipgo is equivalent to equipping network requests with theIntelligent Navigation SystemThe next time you see a 502 error, don't panic, change your IP address and you'll be back in business. Next time you see a 502 error, don't panic, change your IP and you'll be fine again!

