*WARNING* URLGET set to use LWP but perl module is not installed by dowmedia02 | Mar 7, 2015 | Linux Help | When you install CSF firewall you my have this error. *WARNING* URLGET set to use LWP but perl module is not installed csf and lfd are not disabled! To fix this install perl-libwww using: yum install -y perl-libwww