How to prevent DDOS attacks and keep my website or application safe?
Published on: December 11, 2013 by Marcus
What does DDOS stand for?
DDOS or DOS stands for ‘Distribution denial of service’ or ‘Denial of Service’. If you are wondering what are DDOS attacks then read further. It is a malicious attack on your server which hosts your website or application and cripples it from functioning normally. This incapacitates the abilities of your host server or the Central Processing Unit of your computer and prevents it from being easily accessible to your users. For those of us who are non-technical people; a DDOS attack is simply a hostile attack on the server where a website or application is being run from. This attack prevents access to that particular site or application. It is done by sending a huge surge of traffic to the server of the website or app. Over the past few years there has been a considerable increase in these attacks and people and the servers are finding themselves more and more vulnerable to these attacks.
How do I know am under a DDOS attack?
DDOS attacks come in different forms and it’s hard to define what type of a DDOS attack you are under if at all. But what you should also think about is how to mitigate DDOS attack. In the past couple of years business have spend loads of cash on protecting their servers from these attacks as if they finally do face the wrath then it would cost them millions in revenue earnings. Here are a couple of signs that should tell you that you are probably under a DDOS attack:
- Slow central processing unit speed.
- Slow network processing speed.
- Not being able to access your website or application.
- An influx of unusually high emails [Also known as an email-bomb]. This could potentially harm your email as well.
Complete disconnection from your WiFi or LAN connection.
How to prevent a DDOS attack?
In order to know how to defend against DDOS you must first check if your servers are vulnerable to these attacks or not. DDOS attacks are usually targeted at banks, and government sites. But since 2011 there has been a considerable hike in these attacks on numerous amounts of sites. These attacks are fairly cheap to launch and extremely difficult to stop. So it is better you get as much as information as you can about how to protect server from DDOS. These are a couple of ways you can help prevent a DDOS attack:
Limit your server’s bandwidth and set a limit to prevent it from being hit by a considerable amount of traffic.
Add filters to your router and get it to drop packets from apparent resources of attack.
Set effective and aggressive time-outs for half open connections.
Set a lesser Synchronous, Internet Control Message Protocol and User Datagram Protocol flood drop entry points.
These methods could only be effective if you are constantly vigilant and take your security seriously. If you are under attack it is advised that you call your Internet Service Provider immediately and ask for their assistance.