docs: nginx 設定例を rewrite 不使用の proxy_pass 形式に変更 - #72
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nginx 1.24.0-2ubuntu7.16 (CVE-2026-42533 対策) の回帰バグで rewrite ^/shift2/(.*)$ /$1 break; の結果 URI が壊れ本番 API が 404 になったため、 本番の /etc/nginx/shift2.conf と同じく proxy_pass 末尾 / で prefix を除去する形式に同期。 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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概要
2026-08-20 の unattended-upgrade で nginx が 1.24.0-2ubuntu7.16 に更新された際、CVE-2026-42533 対策パッチの回帰バグ（USN-8563-4）により
rewrite ^/shift2/(.*)$ /$1 break;の結果 URI が壊れ、本番の/shift2/api/*等がすべて 404 になっていました。本番サーバーでは nginx を 7.17 に更新し、
/etc/nginx/shift2.confをproxy_pass http://localhost:4050/;（末尾/で prefix 除去、rewrite 不使用）に変更して復旧済みです。この PR はその設定例をドキュメント (docs/VPS_SETUP.md) に同期するものです。変更内容
docs/VPS_SETUP.mdの nginx 設定例からrewriteを削除し、proxy_pass http://localhost:4050/;形式へテスト
/shift2/,/shift2/api/config,/shift2/help.html,/shift2/js/...,/shift2/api/ical/allが 200 になることを確認済み🤖 Generated with Claude Code