diff --git a/RECOVERY.md b/RECOVERY.md
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-## RECOVERY maintenance update - 2026-07-09
-
-Created a targeted review lesson pair based on missed Linux+ firewall
-book questions:
-
-- `linuxplus-lesson-120.el`
-- `linuxplus-quiz-120.el`
-
-Lesson 120 covers firewall ACLs, packet inspection, persistent
-configuration files, stateful firewall review points, firewalld runtime
-to permanent configuration, numbered UFW rules, simple UFW SSH blocking,
-DenyHosts, and Fail2Ban.
-
-Quiz 120 uses only true/false, yes/no, and single-choice questions.
-The lesson keeps text above an `ansi-term` buffer and includes GNU
-Emacs on GNU/Linux audio practice with `espeak-ng` and `espeak`.
-
-Include the book's expected wording, but preserve the real-world note
-that DenyHosts is strongly associated with `/etc/hosts.deny`, while
-Fail2Ban commonly blocks through firewall actions.
diff --git a/STUDY.md b/STUDY.md
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-## Lesson 120
-
-- `linuxplus-lesson-120.el`
-- `linuxplus-quiz-120.el`
-- Topic: Firewall ACLs, packet inspection, persistent configuration,
-  stateful firewall behavior, `firewall-cmd --runtime-to-permanent`,
-  numbered UFW rules, simple UFW SSH blocking, DenyHosts, and Fail2Ban.
-- Practice: `sudo firewall-cmd --runtime-to-permanent`,
-  `sudo ufw status numbered`, and `sudo ufw deny 22/tcp`.
-  
\ No newline at end of file