safe_mode = On or Off

hello,
for some reason I want to run on a server safe_mode = On but then some scripts dont work, And last night I had a conversation with a hacker who haked one of my clients web site which has been rurnning on phpBB, well, after that I try to become a friends with a hacker to find out how to protect a box. And he tell me the following

php.ini
expose_php = Off
safe_mode = On
display_errors = Off
log_errors = On
report_memleaks = On
track_errors = Off
register_globals = Off
register_argc_argv = Off
Well I did this and now a lot of sites does not work.
What should I do?

 

 

 

 

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