CODEWITHSUNDEEP
firewallcentos7
MahuLovzYou
MahuLovzYou

Reputation: 73

How to enable firewall on Centos 7?

My firewall is currently inactive. 

# systemctl status firewalld
firewalld.service
    Loaded: masked (/dev/null)
    Active: inactive (dead)

I used the following command to enable the firewall

$systemctl unmask firewalld

but I got this error

# systemctl unmask firewalld
Failed to issue method call: Access denied

Please advise.

Thanks in advance!

Upvotes: 7

Views: 28153

Answers (2)

Santos L. Victor
Santos L. Victor

Reputation: 658

Try this:

systemctl unmask firewalld

return: Removed symlink /etc/systemd/system/firewalld.service.

After that, you can:

systemctl restart firewalld

Upvotes: 19

gomons
gomons

Reputation: 1976

Try this:

sudo systemctl restart firewalld
sudo systemctl enable firewalld

But before you should install firewalld. You can use yum for that: 

sudo yum install firewalld

Upvotes: 2

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