Learn how firewalls have progressed from simple packet filtering to more sophisticated application-level filtering.

2] Stateless Firewall or Packet-filtering Firewall A stateless firewall is also known as a packet-filtering firewall. What we have here is the oldest and most basic type of firewall currently ...

A packet-filtering firewall is typically stateless, a Web Application Firewall (WAF) is typically stateful, a Firewall as a Service (FWAAS) could be either stateful or stateless.

If you configure the packet filter to discard all incoming packets in which the ACK flag is set to 0, you can be assured that any connections to your internal severs originated from within your ...

Many broadband routers have basic firewall functionality built in, but these tend to be simple packet filtering firewalls.

Packet-filtering firewalls will check each data packet to make sure it has permission to pass through your network. While this remains the most common type of firewall, it was developed in the ...

Packet-filtering firewalls like ipfw classify network traffic two ways: by type, using port numbers, and by origin and destination, using IP addresses.

Smoothwall is fine and dandy, except NAT is making it more trouble than it is worth.I think my Red Hat install is kernal 2.4.IP chains or IP tables.What is the best way get a bare-bones firewall ...

For those new to packet filtering, ignore the ipchains translations and use the iptables examples. While not all ipchains commands and options will be translated to iptables, this text should provide ...

I'm a real newbie to firewalls but need to learn about them. When comparing products I keep seeing these two terms used, but I don't understand what they mean--what is the firewall actually doing ...