ルートに許可IPアドレス
.htaccess
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RewriteEngine on
RewriteCond %{REMOTE_ADDR} !203.xxx.xxx.xxx
RewriteCond %{REMOTE_ADDR} !222.xxx.xxx.xxx
RewriteRule ^(.*)$ /mentegamen/ [R,L]
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で、メンテフォルダに/mentegamen/
.htaccess
----------------------------
RewriteEngine off
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