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Home » Kerio User Forums » Kerio Control » [Request] Add to limit connections to port per IP-addresses. (Add to limit connections to port per IP-addresses.)  () 1 Vote
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MuForum

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I ask the developers of the program to add the settings FireWall new opportunity:
Limit the number of connections to a local port with a single IP-address.

Encountered a problem when there is DDoS attack on HTTP-server (Apache).
- Create approximately 1000 connections per IP-Addresses ...
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Memnon

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Sounds like a good feature request to me. You can obviously already set up an connection limit per host but this wouldn't help in a true DDoS situation. Did you have the IDS/IPS setting on drop by the way ? This could also help as the nodes might have been in networks already classified as dubious.

Question for Kerio, what is the correct way to file Control feature requests ? (as there is no user voice system at the moment) Is it still via support.kerio.com as is indicated here in 2006 http://forums.kerio.com/index.php?t=msg&th=8468

- https://shop.kerio.nl the Netherlands
- https://shop.kerio.be Belgium
- https://shop.kerio.lu Luxembourg
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MuForum

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In addition to DDos-attack, there are other methods of plugging the port.
You can create every 100 ms for example and emulate connection to send requests to the HTTP-server (Apache), which will heavily load it as a Dos-attacks will not be determined!
It is therefore necessary function ogranichivaniya number of connections on a port with an IP-address.
In FireWall WIPFW is a function for example.
- Ipfw add allow tcp from any to me setup limit src-addr 4
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Goran

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This sound good.
Download/Upload speed per IP?

Question cannot be stupid, but some of the answers can.
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