🐍 ByteDrop #003: Python Log Sniffer

Scenario: You’re investigating a log file for repeated IP addresses. The goal is to identify any IPs that show up more than once — a common sign of scanning or brute-force attempts.

Challenge: Complete the Python script below to print all IPs that appear more than once.


log_data = [
  "192.168.1.10 - login attempt",
  "10.0.0.5 - login attempt",
  "192.168.1.10 - login attempt",
  "172.16.0.2 - login attempt",
  "10.0.0.5 - login attempt"
]

ip_counts = {}

for entry in log_data:
    ip = entry.split(" ")[0]
    # TODO: Count each IP address

# TODO: Print IPs that appear more than once

What should go in the two TODO sections?





🔽 Need help? Click to reveal tips
  • Use a dictionary to count how many times each IP appears.
  • Use `.get()` to safely increment values.
  • Loop through the dictionary to find values greater than 1.