Clear it in 3 steps
Start the environment
Investigate the target
Submit the flag
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Linux-Log Explorer. Digging the Flag Out of Multiple Logs
Mission
Multiple application and system log files are provided. The flag is embedded in a single DEBUG-level line — narrow it down with grep or similar tools.
Not started
Hints
Hint 1Show
Check through the log files under /var/log/app
Hint 2Show
Filtering by log level (DEBUG) makes it easier to find
Hint 3Show
grep -i flag directly searches for flag-like strings