/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/ is in doc-linux-ja-html 2006.05.25-1.1.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/faq.html
/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/index.html
/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/intro.html
/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/japanese.html
/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/nocat_auth.jpg
/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/nocat_auth_in.jpg
/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/remarks.html
/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/resource.html
/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/services.html
/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/setup.html
/usr/share/doc/HOWTO/ja-html/Authentication-Gateway-HOWTO/usage.html