Which rpm package does a file belong to?
run "rpm -qf file"
Here is an example on how to find out what rpm (redhat package) a file belongs to:
# rpm -qf /bin/ls
coreutils-8.4-37.0.2.el6.x86_64
# rpm -qf /etc/passwd
setup-2.8.14-20.el6_4.1.noarch