Distributed denial-of-service (DDoS) attacks are always in top headlines
worldwide, as they are plaguing websites in banks, and virtually of
almost every organization having a prominent online presence. The main
cause behind the proliferation of DDoS attacks is that there is a very
low-cost that the attacker has to incur to put such attack in motion.
Fortunately, today various prevention methods have been developed to
tackle such attacks. Before delving further into understanding about the
ways to prevent DDoS attack, let’s first understand what exactly a DDoS
attack is!
Understanding DDOS Attack
A DDoS (distributed denial-of-service) attack is an attempt made by
attackers to make computers’ resources inaccessible to its anticipated
user. In order to carry out a DDOS attack the attackers never uses their
own system; rather they create a network of zombie computers often
called as a “Botnet” – that is a hive of computers, to incapacitate a
website or a web server.
Let’s understand the basic idea! Now, the attacker notifies all the
computers present on the botnet to keep in touch with a particular site
or a web server, time and again. This increases traffic on the network
that causes in slowing down the speed of a site for the intended users.
Unfortunately, at times the traffic can be really high that could even
lead to shutting a site completely.
There are several ways to prevent the DDOS attack; however, here in this guest post I’ll be covering three basic tips that will help you to protect your website from the DDoS attack.
1. Buy More Bandwidth.
One of the easiest methods is to ensure that you have sufficient
bandwidth on your web. You’ll be able to tackle lots of low-scale DDOS
attacks simply by buying more bandwidth so as to service the requests.
How does it help? Well, distributed denial of service is a nothing more
than a game of capacity. Let’s suppose you have 10,000 computer systems
each distributing 1 Mbps directed towards your way. This means you’re
getting 10 GB of data that is hitting your web server every second. Now,
that’s causes a lot of traffic!
So to avoid such issue, you need to apply the same rule intended for
normal redundancy. According to this technique, if you wish to have more
web servers just multiply around diverse datacenters and next make use
of load balancing. By spreading your traffic to various servers will
help you balance the load and will most likely create large space
adequate to handle the incessant increase in traffic.
However, there’s a problem with this method that is buying more
bandwidth can be a costly affair. And as you’ll know that the current
DDoS attacks are getting large, and can be a lot bigger exceeding your
budget limit.
2. Opt for DDoS Mitigation Services.
A lot of network or Internet-service providers render DDoS mitigation
capabilities. Look for an internet service provider having the largest
DDoS protection and mitigation network, automated tools, and a pool of
talented anti-DDoS technicians with the wherewithal to take action in
real-time as per the varying DDoS attack characteristics. A viable
alternative is to utilize a DDoS prevention appliance, which is
specifically intended to discover and prevent distributed
denial-of-service attacks.
3. Restricted Connectivity.
In case you have computer systems that are connected to the web
directly, a better idea is to properly install/configure your routers
and firewall so as to limit the connectivity. For an instance, while
receiving some data from a client machine you can only allow traffic to
pass from the machine only on a few chosen ports (like HTTP, POP, SMTP
etc.) via the firewall.
Websites are largely getting attacked by hackers every second.
Denial-of-service attack is insanely getting huge and is creating a lot
of problems for business organizations having strong online vicinity. In
this guest post you’ll not only understand what a DDoS attack actually
means, but will also come to know about a few type of methods to prevent
DDoS attacks. Aforementioned are three tips that I’ll recommend you to
run through to at least understand where to get started towards building
a resilient web network with chances of surviving a DDoS attack.
Logon to http://onlinehackingtutorials.blogspot.in/ @ Copyright 2014 Pradeep Lodhi (Software Developer)
