همین طور ارور میده که :
rpm -U mod-pagespeed-stable_current_x86_64.rpm
warning: mod-pagespeed-stable_current_x86_64.rpm: Header V4 DSA signature: NOKEY, key ID 7fac5991
error: Failed dependencies:
httpd >= 2.2 is needed by mod-pagespeed-stable-1.0.22.7-2005.x86_64