“-bash: firewall: command not found” – How to resolve in CentOS/RHEL 7

The Problem

Why is the below error observed when the firewall-cmd –state command is executed:

-bash: firewall: command not found

The Solution

If there is a syntax error while executing the command, one may get the error of the following sorts :-

# firewall-cmd -state
usage: see firewall-cmd man page
firewall-cmd: error: unrecognized arguments: -state

# firewall -cmd --state
-bash: firewall: command not found

stop firewalld in CentOS/RHEL 7

The below command may be executed to stop firewall:

# systemctl stop firewalld

For Example:

# systemctl status firewalld

firewalld.service - firewalld - dynamic firewall daemon
   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled)
   Active: active (running) since Thu 2015-03-12 09:31:07 IST; 5h 33min ago
 Main PID: 814 (firewalld)
   CGroup: /system.slice/firewalld.service
           └─814 /usr/bin/python -Es /usr/sbin/firewalld --nofork --nopid

Mar 12 09:31:06 rhel7-server systemd[1]: Starting firewalld - dynamic firewall daemon...
Mar 12 09:31:07 rhel7-server systemd[1]: Started firewalld - dynamic firewall daemon.

# firewall-cmd --state
running
# systemctl stop firewalld
# firewall-cmd --state
not running

disable firewalld in CentOS/RHEL 7

Below command may be execute to disable service (Turn the service off for the next reboot, or any other trigger.)

# systemctl disable firewalld.service

For example:

# systemctl disable firewalld.service
rm '/etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service'
rm '/etc/systemd/system/basic.target.wants/firewalld.service'

enable firewalld in CentOS/RHEL 7

To re enable the firewalld service again, use the below command:

# systemctl enable firewalld.service