On Sun, May 22, 2016 at 11:02 PM, Rob Kampen <rkampen at kampensonline.com> wrote: By default CentOS 7 uses firewalld and not iptables - check what is > enabled and running with > >systemctl status firewalld.service > systemctl reports: systemctl status firewalld.service ● firewalld.service Loaded: masked (/dev/null) Active: inactive (dead) I disabled/removed firewalld and installed/enabled iptables.