mcp/app/Commands/Fail2banCommand.php

<?php

namespace App\Commands;

use Illuminate\Console\Scheduling\Schedule;
use LaravelZero\Framework\Commands\Command;
use Illuminate\Support\Facades\File;

use App\Facades\Install;

use Log;

class InstallUfwCommand extends Command
{
    /**
     * The signature of the command.
     *
     * @var string
     */
    protected $signature = 'install:nginx';

    /**
     * The description of the command.
     *
     * @var string
     */
    protected $description = 'Install mariadb and set configuration';

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        $this->line('Install ufw...');

        exec('apt update 2>&1');
        exec('apt install -y ufw 2>&1');

        exec('ufw allow ssh');

        // starting
        exec('service ufw start');
        exec('echo "y" | ufw enable');

        if (Install::isReady('ufw')) {
            $status = "Install ufw...success";

            $this->info($status);
            Log::info($status);
        } else {
            $this->error('Install ufw...failed');
        }
    }
}