How to prevent DDoS attacks on Apache servers?

How to prevent DDoS attacks on Apache servers?

Another best way to prevent Apache DDoS problems is by using load balancers such as HAProxy. At Bobcares, our Server Administration Team help server owners setup load balancers on their servers. In addition to that, we limit the number of connections per user, limit the HTTP request rate, etc. to mitigate DDoS attacks on web servers.

Can a web server be a victim of DDoS?

Since Apache is a widely used web server, it can fall as the prime victim of DDoS. Quite a terrible situation, right? So, what’s the smart decision here? Even though, there is no perfect solution to prevent Apache DDoS attacks, we can defend it to a great extent.

What is distributed denial of service ( DDoS ) attack?

A distributed denial-of-service (DDoS) is where the attack source is more than one–and often thousands of-unique IP addresses. What is mod_evasive? mod_evasive is an evasive maneuvers module for Apache to provide evasive action in the event of an HTTP DoS or DDoS attack or brute force attack.

How can I protect my Apache web server?

There are a couple of solutions for Apache Web servers that can limit the harm done by excess traffic and application attacks. Some of these, such as ModSecurity, will filter malicious traffic, whereas other solutions will block traffic on a network level (Fail2ban) or application level (mod_evasive).

How is Node.js used for DDoS attacks?

The rate-limiter-flexible Node.js package can be used against DDoS attacks. Any event will be blocked, if it happens more than 5 times per second. There is also the option for distributed applications using Redis. And some flexible settings like insurance and block strategy makes rate-limiter-flexible highly available and fast.

Why does Apache server crash in DoS attack?

Since this allocation is doled out according to a default minimum, a cascade of header-only requests will cause a non-linear consumption of available memory, eventually resulting in a crash. This style of attack is actually a standard, and has been around awhile.