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firewalld

edited Nov 1, 2018 5:05AM in Linux Operating System (MOSC) 2 commentsAnswered

I ran "yum update" on my main dev machine this morning which pulled in 49 packages, among them firewalld.

Shortly afterwards, a user of the 12.1 database on this system contacted me with performance complaints.

I rebooted this system, which resolved the compaints, then found the following in /var/log/messages:

Sep 26 10:21:10 myhost firewalld[31613]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -w --table nat --delete POSTROUTING --source 192.168.122.0/24 --destination 224.0.0.0/24 --jump RETURN' failed: iptables: Bad rule (does a matching rule exist in that chain?).

There were a total 16 of these firewalld "command failed" messages in the log at this time with slightly different details. These IP addresses are not on my network, and this machine does not have any assigned NAT functions.

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