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Source:
- Script URL: https://hackertips.today/cmd/linked.sh
- Shortlink: https://lnkd.in/enSh-e5i
This script generates potential LinkedIn shortlinks and checks their validity using curl.
You Should Know:
1. Script Usage & Commands
Install required tools:
sudo apt update && sudo apt install parallel curl -y
Download and make the script executable:
wget https://hackertips.today/cmd/linked.sh chmod +x linked.sh
2. Running the Script
Basic Usage (Single Thread):
./linked.sh 10
Generates 10 random LinkedIn shortlinks and checks responses.
Multi-threaded (Faster Scanning):
./linked.sh 100 -t 10
– Generates 100 links with 10 concurrent threads.
Save Results to File:
./linked.sh 1000 -t 15 -o linked_results.txt
– Stores output in linked_results.txt.
3. Analyzing Responses
- HTTP 200/301/302: Likely a valid link.
- HTTP 404/403: Invalid or restricted.
4. Advanced Automation
To scan continuously and log only valid links:
while true; do ./linked.sh 500 -t 20 -o valid_links.log; sleep 60; done
5. Ethical Considerations
- Do not abuse this for scraping private data.
- Report vulnerabilities responsibly (e.g., LinkedIn Bug Bounty).
What Undercode Say
This script demonstrates how predictable shortlinks can be exploited. For cybersecurity professionals, understanding pattern recognition in URLs helps in penetration testing and vulnerability assessment.
Expected Output:
https://lnkd.in/abc123 → 200 OK https://lnkd.in/xyz456 → 404 Not Found
Prediction
LinkedIn may implement rate-limiting or CAPTCHA systems to prevent automated scanning. Future scripts may need proxy rotation or AI-based pattern evasion.
Related Commands:
– `curl -s -o /dev/null -w “%{http_code}” [bash]` (Check HTTP status)
– `parallel -j 10 curl -s ::: URL1 URL2` (Parallel requests)
– `grep “200” linked_results.txt` (Filter valid links)
For ethical hackers, always test within legal boundaries. 🚀
References:
Reported By: Activity 7328718474183122944 – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
