What kind of firewall are we talking about?
To prevent bots? To prevent website attacks such as SQL injection and such? To prevent (D)DoS attacks?
I don't use any because I have made my own very basic filtering function in PHP for vBulletin that should prevent any 0day attacks. (D)DoS attacks can not be prevented with a WAF. But besides that there's always some way to bypass a WAF because it simply checks the request sent to the server for certain patterns or strings.
Cloudflare and Incapsula are good examples of DNS providers who also provide WAF and DDoS protection.
Incapsula is good, I've been stopped dead in my tracks by it and I wasn't even trying anything dirty, I swear!
Always a good idea to check with your host, some offer very solid advice on matters such as this including what they can offer/do as I bet its not their first ddos rodeo .
Specifically sql injection, xss, and 0day attacks. Im currently using the free version of cloudflare
The free version does not provide any WAF though, you'll have to buy one of the packages of which the cheapest one is $20/month. I recommend either Cloudflare or Incapsula.
09-03-2015, 12:06 PM
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