Hey, it worked!! Thanks
i used that and it told me to install daq....
i went to the snort website and installed daq. tryed to install tha package again ainda it worked.
$yum provides libsfbpf.so.0
Loaded plugins: langpacks, presto, refresh-packagekit
daq-0.6.2-1.i386 : Data Acquisition Library
Repo : @/daq-0.6.2-1.i386
Provides : libsfbpf.so.0