Mar 06, 2015

PF (firewall) - Wikipedia PF (Packet Filter, also written pf) is a BSD licensed stateful packet filter, a central piece of software for firewalling.It is comparable to netfilter (), ipfw, and ipfilter.. PF was developed for OpenBSD, but has been ported to many other operating systems pfSense® - World's Most Trusted Open Source Firewall Securely Connect to the Cloud Virtual Appliances. Netgate’s ® virtual appliances with pfSense ® software extend your applications and connectivity to authorized users everywhere, through Amazon AWS and Microsoft Azure cloud services. Network your employees, partners, customers, and other parties to share resources in site-to-cloud, cloud-to-cloud, and virtual private cloud (VPC) connectivity.

see also Firewall rules - some more work. A firewall is a good line of defense against external intruders. It can allow precisely what you want and exclude everything you don't want. I'm using ipfw which [I think] means Internet Packet FireWall. This section will deal mostly with how to configure ipfw.

Flexible web-based firewall log analyzer, supporting netfilter and ipfilter, ipfw, ipchains, cisco routers and Windows XP system logs, and mysql or postgresql database logs using the iptables ULOG or NFLOG target of netfilter others mapped to the ulogd format with a view.Fully supports IPv6 for database logs, and netfilter and ipfilter system file logs. Free Ipfw Downloads Ipfw-classifyd v.1.0 An application layer classifier for FreeBSD's ipfw firewall. PeerSniper v.1.0 PeerSniper allows the complete removal of the PeerGuardian software from your system and resets the ipfw filters to allow acces back to blocked addresses such as apple.com Just run the app, enter your administrator pass, and it will do the rest. Setting Up ipfw on Mac OS X - Scott's Weblog - The weblog

The FreeBSD Diary -- Firewalls / ipfw - protect your subnet

The FreeBSD Diary -- Firewalls, filtering, ipfw, and FTP