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Thread: recommended external firewall...
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03-15-2012, 12:52 PM #1Newbie
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recommended external firewall...
hey,
i have 15 dedicated servers connected to a cisco 2960 switch
i want to setup gateway firewall to block DDOS attacks over my network.
i need recommendation for a good firewall that can block attacks up to 100mbps
thanks.
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03-15-2012, 01:03 PM #2Web Hosting Evangelist
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The Mbps really isn't that big of a deal, the issue you will run into is firewalls have a finite number of sessions that they can track in their state table before they just starting dropping all of your packets. The sad part is that a lot of firewall manufacturers actually use the session limit as a licensing metric to get you to upgrade your firewall with a key.
So you can Null route the traffic, or forward it to a scrubber assuming that this solution makes sense financially.
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03-15-2012, 01:05 PM #3Newbie
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so if i want to prevent the attack without using null route?
there is other solution?
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03-15-2012, 01:06 PM #4Web Hosting Guru
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http://www.worldsfastestfirewall.com/
Dont know if its in ur budget or now
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03-15-2012, 01:07 PM #5Web Hosting Evangelist
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Yes, there are solutions, all of them are pretty cost prohibitive except for Cloudflare (which is free) and there is always some point where the volume of traffic is going to overwhelm your willingness to pay for the solution.
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03-15-2012, 01:07 PM #6Disabled
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SYN cookies?
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03-15-2012, 01:08 PM #7Newbie
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not only, UDP too
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03-15-2012, 01:09 PM #8Web Hosting Guru
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It could be Possible that the attacks are Spoofed SYN,UDP
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03-15-2012, 01:09 PM #9Web Hosting Evangelist
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03-15-2012, 01:11 PM #10Web Hosting Guru
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03-15-2012, 01:21 PM #11Disabled
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Installing/improving firewall(s) and adding switches to your dedicated server help.
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