A while ago I deactivated the centos 7 firewall and when trying to enable I had the following message failed unit not found. I re-installed the firewall and now, when I check for the status of the firewall, I get the following message. Is it a problem should I solve something? From already thank you very much
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[root@localhost nagios]# systemctl status firewalld
● firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: enabled)
Active: active (running) since mar 2018-06-19 16:53:57 -04; 5s ago
Docs: man:firewalld(1)
Main PID: 21726 (firewalld)
CGroup: /system.slice/firewalld.service
└─21726 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid
jun 19 16:53:59 localhost.localdomain firewalld[21726]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -w --table filter --delete FORWARD --dest...chain?).
jun 19 16:53:59 localhost.localdomain firewalld[21726]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -w --table filter --delete FORWARD --sour...chain?).
jun 19 16:53:59 localhost.localdomain firewalld[21726]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -w --table filter --delete FORWARD --in-i...chain?).
jun 19 16:53:59 localhost.localdomain firewalld[21726]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -w --table filter --delete FORWARD --out-...at name.
jun 19 16:53:59 localhost.localdomain firewalld[21726]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -w --table filter --delete FORWARD --in-i...at name.
jun 19 16:53:59 localhost.localdomain firewalld[21726]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -w --table filter --delete INPUT --in-int...chain?).
jun 19 16:53:59 localhost.localdomain firewalld[21726]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -w --table filter --delete INPUT --in-int...chain?).
jun 19 16:53:59 localhost.localdomain firewalld[21726]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -w --table filter --delete OUTPUT --out-i...chain?).
jun 19 16:53:59 localhost.localdomain firewalld[21726]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -w --table filter --delete INPUT --in-int...chain?).
jun 19 16:53:59 localhost.localdomain firewalld[21726]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w2 -w --table filter --delete INPUT --in-int...chain?).