• Network Security

    Botnets – What are botnets, what can they do & how to protect against them

    Botnets are automated computer programs that install themselves on many unsuspecting victim machines and launch coordinated attacks against target systems. Spam bot is a type of botnet, but there are other (more vicious) botnets that are deployed for various purposes. In this article, let us look at - What are botnets, how botnets spread, what can botnets do and how to protect against botnets.

  • Network Security

    What is a Trojan Horse in Computer Networks and how to protect yourself from it?

    A Trojan Horse is a computer program that is attached to a genuine program / gets disguised as a genuine program to install a back-door to the user computer (enabling the attacker to take control of it) when the user runs this program. They can be found in updates, free softwares and even pirated MP3/Videos that you download from the Internet. In this article, let us look a little deeper into a Trojan Horse, how it works and what steps one can take to prevent them.

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  • Network Security

    Why is an SSL Certificate required?

    An SSL Certificate might be required mainly for two reasons - 1. To validate the identity of a website / portal using digital certificates; 2. Encrypt communications between server and browser (or) between two systems. SSL refers to Secure Socket Layer. Read on to find out the applications of SSL Certificates, Encryption methods used in SSL, How to identify if a website has implemented an SSL certificate & Purchasing an SSL Certificate.

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  • Network Security

    What do you think of accessing blocked sites & hiding IP address using personal VPN services?

    If you are a network admin, you might be aware of the various techniques used by students/ employees to gain access to blocked sites. Right from typing IP address instead of URL, using URL shortener's, using various proxy servers available on the Internet - various methods might be used. A paid personal VPN service is also being employed these days to access blocked sites and hide IP address. Let us read more about personal VPN Service, in this article.

  • Network Security

    What are Database Firewalls, why are they required & how do they protect databases?

    Most of the front end applications rely on a back-end database (like MySQL, PostGRE SQL, etc) to fetch the required data while performing their tasks. Databases are no longer restricted to internal applications in a Local Area Network, as many web based applications rely on them. In this article, let us see what Database firewalls do, where they are deployed,  how they protect database specific attacks and some best practices for securing Database servers. What are Database Firewalls? Database Firewalls are a type of Web Application Firewalls that monitor databases to identify and protect against database specific attacks that mostly seek to access sensitive information stored in the databases.  Database…

  • Network Security

    What is a Web Application Firewall?

    Web Application Firewalls are quite different from normal packet inspection firewalls because they primarily operate in the application layer identifying and protecting web based applications/ servers from specific application based vulnerabilities, over the Internet. Let us find out more about these web application firewalls, in this article.

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  • Network Security

    DLP – Data Loss Prevention : What & How Data Loss is Prevented?

    With so many ways/ devices to transfer data, it is becoming difficult for companies to track and prevent confidential documents/ files from being copied and sent to unwanted sources. But there are Comprehensive DLP solutions in the market which analyze endpoint, network and storage systems continuously to monitor for confidential data from being leaked out. What more, they can even prevent the transfer of confidential information. Is it even possible for monitoring all the various enterprise systems (including the Internet communications, USB drives, NAS boxes, etc) and identify that certain confidential information is being sent/ stored in them? The answer, is surprisingly ‘yes’. There are comprehensive DLP (Data Loss Prevention)…

  • Network Security

    An Introduction to DDoS – Distributed Denial of Service attack

    As you might have heard, the famous blogging service WordPress.com was recently unavailable for around an hour due to a huge Distributed Denial of Service attack carried out by many infected computers on the Internet. In this article, let us look at what a Distributed Denial of Service attack is, why it is hard to detect and mitigate, few types of DDoS attacks & some measures one can take to prevent/ mitigate them. What is DDoS – Distributed Denial of Service Attack? DDoS stands for Distributed Denial of Service attack. It is a form of attack where a lot of zombie computers (infected computers that are under the control of…

  • Network Security

    You can use OTP – One Time Password for stronger authentication

    If your finance department personnel do quite a number of bank transfers/ financial transactions over the Internet (web portal) everyday, there is a chance that their user-names/passwords can be stolen and misused. So authenticating users with just their user-names and passwords are not secure enough, at least for such critical functions. With a One Time Password (OTP) system, you can authenticate users using passwords that keep changing (say every 90 seconds).

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  • Network Security

    An illustration of DMZ : De-Militarized Zone in Computer Networking through Infographics

    Well, this is not exactly Infographics! It is just an attempt to explain the basic concepts of DMZ – Demilitarized Zone (Computer Networking) through an image. These days, the web-servers and mail servers (which form the common components of DMZ) are mostly hosted in a cloud/ Data-Center environment. But a DMZ can be even used to host specific web-facing applications of an organization (Like web-based CRM, etc). Anyways, please refer to the below picture for a basic understanding of DMZ. excITingIP.com In case you want to add any additional points or have any questions, you could use the comment form below or contact us using the contact form. You could…

  • Network Security

    Subdivide your Physical Firewall into multiple Virtual Firewall instances

    In bigger organizations and service providers, multiple Firewalls are routinely utilized for each department or class of subscribers as some of them require individual Firewall policies. And more importantly, they want to administer, monitor and manage their own Firewall in order to have a full control over the types of traffic traversing over their networks. Fortunately, some of today's Firewalls (Or UTMs - Unified Threat Management devices) allow subdividing a single high capacity Firewall in to multiple (Virtual) Firewall Instances.

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