PF Firewall

I can use iptables -L -n command with Linux operating system to list the current firewall rules. How do I list all the current firewall rules under OpenBSD / FreeBSD / NetBSD operating systems? How can I see all pf firewall rules using command line tool?

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I have MySQL database system running on FreeBSD. The server has multiple ip address. The mysqld used by many websites hosted on two other CentOS based servers. I would like to bind MySQL sever running on Unix / Linux server to more than one IP address such as,, and How can I bind mysqld to multiple ips?


How do I configure Apache IPv6 networking under UNIX / Linux / BSD operating systems? How do I configure httpd IPv6 and IPv4 under RHEL / CentOS / Fedora / Debian / Ubuntu Linux?


How do I install OpenNTPD ( a Unix system daemon implementing the Network Time Protocol) to synchronize the local clock of a FreeBSD computer system with remote NTP servers called


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. Some time I find myself locked out of my own remote server. How do I reset PF firewall automatically without issuing hard reboot?


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?