0
votes
0answers
258 views

How to protect Nginx from HULK DoS tool

There is a tool called HULK (Http Unbearable Load King). It's a web server denial of service tool. It is designed to generate volumes of unique and obfuscated traffic at a webserver, bypassing caching ...
0
votes
1answer
458 views

Anti-DDos Apache2 Fail2ban regex rule [duplicate]

I have fail2ban up and running, but my Failregex doesnt match anything, something is wrong. Request which i like to ban look like this: 186.6.65.199 - - [06/May/2013:18:46:21 +0400] "GET / HTTP/1.1" ...
-1
votes
1answer
450 views

Fail2ban memory usage

Since my server is under a sustain DNS amplification attack (DDOS), I configured fail2ban and initially my outgoing traffic dropped markedly. Anyway, after a few hours (mostly +10), fail2ban uses ...
4
votes
1answer
1k views

measures to take against a dns amplification attack

I recently discovered that my server was being used as part of a DNS DDOS. Basically, my BIND setup allowed recursion, and it was used to attack a certain IP address using IP spoofing. I took the ...
1
vote
2answers
499 views

Software vs. Hardware Appliance DDOS & Firewalls [duplicate]

I run several Ubuntu Servers (virtualized) and have fail2ban installed for DDOS mitigation. For a firewall, each server has iptables. I'm evaluating my security options and was wondering how well ...