CentOS 7 – firewalld[8509]: ERROR: COMMAND_FAILED

centoscentos7firewallfirewalld

[root@localhost ~]# systemctl status firewalld -l
● firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
   Active: active (running) since Sun 2018-09-23 00:27:10 EDT; 2h 51min ago
     Docs: man:firewalld(1)
 Main PID: 8509 (firewalld)
   CGroup: /system.slice/firewalld.service
           └─8509 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid

Sep 23 00:27:09 localhost.localdomain systemd[1]: Starting firewalld - dynamic firewall daemon...
Sep 23 00:27:10 localhost.localdomain systemd[1]: Started firewalld - dynamic firewall daemon.
Sep 23 03:01:26 localhost.localdomain firewalld[8509]: WARNING: '/usr/sbin/iptables-restore --wait=2 -n' failed: iptables-restore: line 2 failed
Sep 23 03:01:26 localhost.localdomain firewalld[8509]: ERROR: COMMAND_FAILED
Sep 23 03:01:32 localhost.localdomain firewalld[8509]: WARNING: '/usr/sbin/iptables-restore --wait=2 -n' failed: iptables-restore: line 2 failed
Sep 23 03:01:32 localhost.localdomain firewalld[8509]: ERROR: COMMAND_FAILED

I am getting the above error message. I tried Googling for solutions, but couldn't find a solution. Any idea why this is happening?

Best Answer

I found this simple trick to do the job, though I still do not know what caused this issue.

These three lines of cmd will solve the issue:

systemctl stop firewalld
pkill -f firewalld
systemctl start firewalld

Credit: firewalld errors when adding http

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