Doug Wolfgram asked:
I am trying to get firewalld running on a centos 7 machine. I know the service is installed from yum:
yum install firewalld Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirror.linuxfix.com * epel: mirrors.develooper.com * extras: mirror.sjc02.svwh.net * remi: repo1.sea.innoscale.net * remi-php56: repo1.sea.innoscale.net * remi-safe: repo1.sea.innoscale.net * updates: repos.lax.quadranet.com Package firewalld-0.4.4.4-14.el7.noarch already installed and latest version Nothing to do
But when I try to start it I get
Failed to start firewalld.service: Unit is masked.
Which usually means it is not installed. So I run this command:
systemctl list-units --type=service
And it is not listed (it should be right after fail2ban)
avahi-daemon.service loaded active running Avahi mDNS/DNS-SD Stack chronyd.service loaded active running NTP client/server crond.service loaded active running Command Scheduler dbus.service loaded active running D-Bus System Message Bus fail2ban.service loaded active running Fail2Ban Service [email protected] loaded active running Getty on tty1 httpd.service loaded active running The Apache HTTP Server iptables.service loaded active exited IPv4 firewall with iptables irqbalance.service loaded active running irqbalance daemon
I have uninstalled and re-installed several times, rebooted and same result. What could possibly be causing firewalld to not be recognized? I am running 13 VMs and this is the only one with this problem. I also turned of selinux but that didn’t help. Any diagnostic suggestions are welcome.
Did you try to
systemctl unmask firewalld? That’s the first step to getting a masked service going.
If you still have trouble, check for the existence of an empty override directory
/etc/systemd/system/firewalld.service.d. If an override directory exists but has no override files in it, the service cannot start. Delete the directory in this case.
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