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2
votes
2answers
573 views

Stopping DDOS TCP SYN and UDP flood attacks

I would like to know if it's possible to stop a TCP SYN OR ICMP Flood attacks if these attacks are detected at time. What is the most accurate process to filter these addresses if the only way is to ...
3
votes
1answer
137 views

COMMUNITY SIP TCP/IP message flooding directed to SIP proxy

I have installed Snort IDS and most alarm is: "COMMUNITY SIP TCP/IP message flooding directed to SIP proxy" And i use home DSL Internet connection , should i be worried about this alarm ? I have ...
3
votes
1answer
111 views

how does a sip flood attack work?

I understand that SIP is an application-level protocol that is used to setup/modify/end communication sessions for things like VOIP and instant messenger. I also understand that users can send request ...
1
vote
3answers
126 views

Is there such a thing as MySQL connection flooding?

I'm a developer for a small website. There are 3 webservers (for load balancing) and a MySQL server. Today the webservers seem to be down, and, unfortunately, I cannot get hold of the admin (he's in ...
1
vote
2answers
215 views

Secure against HTTP FLOOD ATTACK

What is the best way to defend your web site against HTTP FLOOD POST/GET ATTACK ?
2
votes
3answers
570 views

Tools for performing HTTP FLOOD attack?

I'a looking for tools which can perform HTTP FLOOD ATTACK . I seached a lot and this is the only tool I've found DoSHTTP. Does anyone know another tool ? I want to test them on my localhost to ...
1
vote
3answers
392 views

Disadvantages of HTTP GET/POST Flooding Attack?

I asked about What is HTTP GET/POST Flooding Attack? recently and I got a few detailed answers about what they are and how they work. Now I want to find out what are the disadvantages of them.
1
vote
3answers
1k views

What is HTTP GET/POST Flooding Attack?

I want to know what is HTTP GET/POST flood attack and what are their major differences and mitigation strategies ? I searched a lot but I really can't find some good articles nor examples about this ...
4
votes
1answer
323 views

Creating a DDoS attack using DirectConnect

I have been trying to hack around with Apex DirectConnect. What I wish to do is to utilize the querying nature of P2P apps like DC to generate a DDoS attack (see links for reference here, here and ...
0
votes
3answers
277 views

Is it possible to “close” a port by dos'ing it?

If I see port 25 is open, but I dont have access to the program running the smtp server, could It be flooded with enough information to make it unusable (but not affect any other services)?
0
votes
1answer
643 views

Monitor incoming TCP/UDP flood attack and graph it

I'm preparing a presentation on a security issue and want to include a demonstration. It won't be in real time, I just need to show some pictures of the results. I have some VPSes that will perform a ...
4
votes
5answers
813 views

SYN Flooding issue

I recently purchased a server with "DDoS protection" and a 1gbps uplink. What I can't figure out, is that I'm suffering from SYN floods. Isn't the large amount of bandwidth available to me supposed ...
9
votes
5answers
1k views

Risks with Amazon S3 and costs

I have little security knowledge and looking at image hosting for a startup: Considering S3 doesn't allow you to set a cap on costs, how likely is it that someone could flood S3 with requests for my ...
7
votes
4answers
670 views

How can I detect and block bots?

For example, if I am on stackoverflow and I refresh my page several times in a row, it starts to think I am a bot and blocks me. How can I build something like this into my own site?