I see lots of failed FTP login attempts in my log file. How do I stop FTP bruteforce attack? What should I do to solve this problem under FreeBSD 7.x server operating systems?
Question: I’ve vsftpd ftp server configured under FreeBSD 7.x and PF firewall. Both PF and FTP server running on a dedicated FreeBSD web server. How do I configure PASSIVE FTP PF firewall configuration so that my vsftpd work? How do I configure PF firewall to protect an FTP server and open port 21?