Skip to main content

DDoS Attacks - What Can You Do About Them?

A DDoS or Distributed Denial of Service Attack is an illegitimate effort of a person or group to make your computer network or websites unavailable to its user group. In case of a DDoS attack your computer network or website may stop functioning temporarily or permanently. DDoS attacks are biggest threat to network security.
This article is about how to prevent a computer network or website from DDoS attacks.


Identify a DDoS


If you are experiencing any one the following symptoms, this may be a DDoS attack.

1. You are getting millions of zillions of spam email in your email address attached with the network or website.
2. Network performance is pathetic, opening files and loading a website suddenly turned a nightmare.
3. A particular website is not available for very long time, given your hosting server is not under maintenance.
If you experience any one of these symptoms, this is a probable DDoS attack. Don’t panic you can prevent against these.

Preventing Against DDoS attacks


Use Firewalls like Open BSDs pf(4) packet filter; these acts like a connection proxy. For other BSDs its called synproxy. Ordinary firewalls won’t be able to protect in case of attack on port 80 web service.

Use Clean Pipes to prevent against DDoS Attacks. You can buy these from providers like Tata Communications and Verisign etc. When you use Clean Pipes, all traffic request passes through a cleaning center where bad traffic and good traffic differentiated. Central internet connectivity is a must to use these services.

Use Intrusion Prevention System (IPS) to Stop DDoS Attacks. These systems are effective when DDoS attacks bears signature. However, an IPS not works with behavior based DoS attacks where legitimate is used with bad intentions. A rate based IPS i.e. RBIPS perfect choice to let in legitimate traffic and throw out illegitimate request.

Use DoS Defense i.e. DDS from DDoS Protection. A DDS can handle both rate based attacks and protocol attacks. Also a DDS is able to prevent against connection based DDoS attacks and those associated with legitimate content but with bad intentions.

Use Sinkholding against Blackholding DDoS attacks. In case of DNS or IP address DDoS attack al request are sent to a not actually existing web server or black hole. This can be successfully managed by ISP using Sinkholding which is capable in rejecting bad requests.

Use Application Front End Hardware to stop DDoS attacks. These can be used with switches and routers. When a request approaches to server, the application front end hardware distinguishes between good traffic and bad traffic and mark them as priority, regular and dangerous.

Comments

Popular posts from this blog

How paid advertising is important for professionals

Are you looking for leads through content marketing, are you individual who don't have a team? Do you not have budget to hire quality writers? If yes then this article is useful for you. Content marketing is all about educating your consumers, You need to write lots of useful content and share with your potential clients. You need to reach to everyone.
Organic traffic has high value, search engine values it, readers values it. When your blog appears in the top 10 for a search query readers notice it. But in today's world all readers do not go for search instead they ask friends, asking is a habit. Perhaps you have seen people on traffic lights with Google Maps running on mobile and still they ask someone hey, where this address falls. Human answer give driver an assurance that he/she is driving in right direction. Your blog need to be seen by many. If you are a professional, a service provider, a consultant or someone who sales a product and look for consumers online. All you…

How to become a Quora superstar

Quora is the best place to solve people's problems. Everyone has a question, where to find a job,  how to learn a new skill,  how to earn money,  how to find leads for business: questions are innumerable.
Every person  has an skill or expert in something.  Answering questions is a great way to hone your skills: whether is coding,  marketing,  earning more money or something else when you answer a question you not only help others but also brush up your knowledge and make yourself a better person.

5 ways to get quality traffic on your website

Everyone wants quality,  so does you.  There is nothing wrong in seeking something good,  better or extraordinary.  What you sow is what you reap.  Quality traffic comes for quality content. What you publish shall answer a question  solve a problem or clear a doubt. 
Nobody want to read you because you can write it and you are dying to make money from advertising.
People read your content if it's worth and makes life easier. 
Any content that solve a problem makes the way to bookmarks.  It get recommendations without asking for it. 
Quality content is consumable. Here are 5 qualities of quality content
1. Its easy to understand
2. It enhance know how
3. It answers a question.
4. It has accurate facts and figures.
5. It has references to win trust.
If you have all this in your content, quality traffic will come. Quality traffic is when people look in your website,  appreciate its content and press for call to action.  There is no question of quality traffic without action…