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PF Firewall

BSD PF Firewall Block FTP Bruteforce Attacks

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?
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I would like to tell my BSD based PF firewall to flush out the current configuration every 2 minutes. This will help me, when I'm testing a new rules and configuration options.
Tutorial details
DifficultyEasy (rss)
Root privilegesYes
Requirements*BSD+pf
Estimated completion time1m
Some time I find myself locked out of my own remote server. How do I reset PF firewall automatically without issuing hard reboot?
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I'm not able to ping from FreeBSD prison (jail). I'm able to resolve the names or use ftp / http for ports but ping and traceroute access is disabled. How do I allow virtualized jail application / users to perform traceroute and ping commands?
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Q. I've FreeBSD based Apache webserver. I need to allow outgoing ftp client requests so that BSD ports collection can download from various ftp sites. How do I allow outgoing FTP connection via PF network firewall software under FreeBSD or OpenBSD operating system?
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Q. How do I filter larger number of subnets and IPs using OpenBSD's pf firewall under FreeBSD 7.x server? How do I log all dropped packets from such ips? How do I block upto 10000 IPs or subnet without any performance penalty?
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