Glad to hear it. On Thu, Apr 2, 2020, 12:18 PM David Mathog <mat...@caltech.edu> wrote:
> Solved it. > > The problem was that firewalld was running on CentOS 8. It sets up a > firewall but those changes are NOT visible in "iptables --list", so > I didn't know it was there until an nmap from another machine showed port > 9090 on the CentOS 8 machine. lsof had nothing attached to 9090. This was > super confusing. It turned out that firewalld for some reason had > opened that port for "cockpit" even though that package is not only not > running, but is not installed. (And never was.) Good thing that it did > so, it turns out, or I would never have started looking for _another_ > firewall. > > So the solution is to stop firewalld and then disable it. Otherwise, add > rules to firewalld allowing gmond/gmetad connections. The RPMs that were > rebuilt from the Fedora src.rpm did not contain commands to set these > rules, apparently. > > Regards, > > David Mathog > mat...@caltech.edu > >
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