Install CSF Firewall

For non cpanel server, install perl modules

On Ubuntu

Once we have requirments installed, install csf with

See csf […]

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Enable UI in CSF Firewall on CentOS

CSF Firewall UI

CSF Firewall come with standalone UI. This is disabled by default. On CentOS, install following requirments

Edit CSF configuration file


Replace with

Change following settins as needed.

By Default, only whitelisted IP can access the UI, to white list your IP, run

If you want to allow CSF […]

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Unban an IP from CSF Firewall

To unban an IP from CSF firewall, run

Here i have an IP blocked in firewall.

To see if CSF is blocking the IP, run

Example This command also give reason for why the IP is blocked. Lets unban the IP address with command

Now IP should not be listed in […]

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Install CSF Firewall Allow Passive FTP in Cpanel Server with CSF Unban an IP from CSF Firewall Enable UI in CSF Firewall on CentOS Disable IP Block Alerts in CSF Firewall Block Country in CSF firewall Csf Requirments On CentOS/RHEL

On Debian/Ubuntu

Install CSF firewall

Configure some basic settings for CSF


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