Why Firewall are needed for small business as well as large business

To know about why a firewall is needed for small and large business, firstly you have to know what firewall is. Firewall is a network security system which establishes a barrier between an untrusted external network and trusted internal network to controls incoming and outgoing network. A firewall is designed to prevent your network and system from unauthorized access. Every small-large Business access and remotely works on various networks every day, in the meanwhile many unwanted and unauthorized connection or users which may be proved very harmful to your important, confidential business data tries to breach your data. So for your knowledge here we are discussing why Firewall is needed and how does it work.

Why Firewall is needed

Today’s world everyone uses the internet for sending and receiving information. The internet is a potential target to an array of cyber threats, such as hacking, eavesdropping attack, Trojans and many more, Hackers exploit these vulnerabilities and, attack over security holes. Every small and large business relies on the internet for exchanging information, and most of the time this information is confidential as a business purpose and this information could be like a treasure for hackers. A firewall works as a shield, barrier and strong security system between your PC, network, internet, and cyberspace, which protects layer you from illegal access.

Prevent your private network from outsider's attack

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Keeping aside the non-authorized users, It allows you to define a funnel

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Allow monitoring the security and record services of your network and computer

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It will generate an alarm when suspicious activity occurs

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Control the use of the Internet

This service helps to block or un-block inappropriate or appropriate material. That’s why a firewall is needed because after this hacker is blocked by firewall filters and can’t steal information such as bank account numbers and passwords from you.

How does Firewall Work

Now as explained earlier we got a basic idea that the firewall is a secure security network which blocks unauthorized access.

All confidential and important information that we receive and send over internet moves in form of packets (bundles of data). Firewall works according to a pre-defined secure set of rules. Each packet passes through the firewall and checks by the firewall filters if they meet certain standards set then they are allowed to enter and leave otherwise they are blocked by filters. The firewall makes your PC invisible when you are online to protect you from unwanted access.

Now you know all about the firewall very well, and also you know how much Firewall support services are needed for you. If you are using the internet, doesn’t matter your business and organization is either small or large, you must have to install firewall filters on packets for security purpose. So secure your network, PC, Server and buy a great firewall service.

Robert John is a Network Superintendent at Vertex Plus(Usa's top Noc company). He holds 10+Year experience and Adept in Network Operation Center.