Options All -Indexes
DirectoryIndex index.php index.htm index.html

# -------------------------------------------
# Start of NukeSentinel(tm) admin.php Auth
# -------------------------------------------
<Files .ftaccess>
  deny from all
</Files>

<Files .staccess>
  deny from all
</Files>

<Files admin.php>
   <Limit GET POST PUT>
      require valid-user
   </Limit>
   AuthName "Restricted"
   AuthType Basic
   AuthUserFile /path/to/your/.staccess
</Files>

# -------------------------------------------
# Start of NukeSentinel(tm) DENY FROM area
# -------------------------------------------