Forum OpenACS Q&A: Pros and Cons (and costs) of a "professional firewall"

Posted by Jerry Asher on
Can anyone recommend appropriate firewalls for "typical" ACS installations, that is, an ACS website on one "standard" Linux box serving up a million or so hits per day (plus or minus half a million?)

What are the pros and cons of installing a firewall in front of your server (in addition to say, using tripwire, and snort on your server)?  What are the expected costs of a firewall?