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Discussion in 'Systems Administration' started by Martijnie, Oct 13, 2014.
Why not just put up a captcha? It seems to have worked based on this.
It's fine for me.
The web server is up, but the forums somehow isn't working.
Good thing you have a filter though
Yep still working on a filter for the forum because it requires a different approach. Have put it offline for now.
And the forum is back online too! http://forum.woa.pw
Will keep a close look on the logs to see how my filter is behaving.
Not well, trust me.
That would be a layer 7 attack, as it's attacking vulnerabilities in the actual application. Cloudflare fixes this by checking browsers before computing their request. OVH does not protect this, instead you must set up things within the application in order to handle high volumes of traffic.
Facebook for example needs to load balance their system in a way in order to withstand the millions of requests they get per second.
Layer 4 on the other hand are volumetric in size, and try to saturate the end host's port with packets.
Just tweaked the filters again so I did a restart of iptables which cleared everything previously stored. In the next hour or so it should pretty much catch all ddos attempts and then stabilize automatically
EDIT: Previous filter banned around 830 IP's. Is that a lot for a DDoS attack?
Throwing error 500, internal server error.
I know. It's still stabilizing.
This is a very difficult ddos attack to defend. You should get more layers of protection and improve your filter.
Just get budget host IP's and you'll pretty much filter everyone who does shady stuff out.