PF Firewall

OpenBSD / FreeBSD / NetBSD: PF Firewall List Rules

by on December 6, 2012 · 0 comments

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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MySQL Server: Bind To Multiple IP Address

by on December 6, 2012 · 3 comments

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 202.54.1.2, 202.54.1.10, and 202.54.1.15. How can I bind mysqld to multiple ips?

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Apache IPv6 Configuration: Dual Stacked IPv4 & IPv6 Virtual Hosts

by on August 28, 2009 · 5 comments

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?

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FreeBSD Install OpenNTPD NTP Server / Client To Synchronize The Local Clock

by on June 4, 2009 · 0 comments

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 ntp.myisp.com?

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Reset PF Firewall Automatically While Testing Configuration With Remote Server Over SSH Session

by on May 13, 2009 · 3 comments

I‘d like to tell my BSD PF firewall to flush out the current configuration every 2 minutes. This will help 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?

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FreeBSD Jail Allow Ping / tracerouter Commands

by on May 9, 2009 · 0 comments

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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