Chrony, NTP, and Firewalld -

Ed Greshko ed.greshko at greshko.com
Tue Jan 6 14:07:25 UTC 2015


On 01/06/15 21:58, Bob Goodwin wrote:
> I have two Fedora-21 computers set as time servers for chrony, this one [box10] Which began as a new install and box7 which evolved from the alpha version. In both the firewalld GUI Service > Workstation > NTP show "checked." However I have to disable the firewall in box7 to allow it to serve chrony and display in chronyc sources.
>
> So it appears that the GUI is not telling the whole story, stuff is happening that it doesn't cope with. I considered yum remove and re-install firewalld but rejected that idea as probably causing more problems. I guess that means fixing iptables from the command line, a scary prospect!
>
> Can anyone offer some very basic help doing that?
>

I would check to make sure that the network interface being used is in the correct "Firewall Zone".

It may be the case that you've checked NTP in the public zone in the GUI, but for some reason the interface is not in that zone.


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