SharePoint Publishing sites became a very important trend in the SharePoint world , but thinking that your site will face the public users through the internet and your system pages will be vulnerable for users – even those users are authenticated against any provider FBA or third party – that is a big issue, This issue is a “Heart attack” for your public site.
Surfing for the solution, I found a lot trends for avoiding this problem , but I think that the following solution is very easy and strait forward one. So I wanted to share the solution – may be helpful for someone-
Kindly find this link: http://blog.mastykarz.nl/preventing-authenticated-visitors-browsing-system-pages/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+WaldekMastykarz+%28Waldek+Mastykarz%29&utm_content=Google+Reader
Hope this link is helpful.