May 2017
Beginner
552 pages
28h 47m
English
Content preview from Linux Shell Scripting Cookbook - Third Edition
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A shell script can scan the log files and gather the required information. Login details are recorded in /var/log/auth.log or /var/log/secure. The script scans the log file for failed login attempts and analyzes the data. It uses the host command to map the host from the IP address.