Preventing DoS attack on our Apache Web server is the most difficult and challenging problems we have ever faced. I looked at different solutions on the website, they are all recommending to use IPTable to block such attack. But I have come to a conclusion that IPTables has nothing to do with that. I have done a lot of configuration on IPTables and listened to many advanced but with no concrete result.
There must be another way to prevent DoS attack. I don't know if Apache configuration can prevent such attach.
Basically, I am getting hundreds of connection from a specific IP address, which drained out the server memory and kills it. The current situation we are doing is to block that IP range. which is not a solution.
If you believe this issue can be resolved from Apache, please let me know how to tweak the setting.
We are a university, the web server we have is mainly for displaying information.
I would really appreciate any advice.
Thanks in advance