What is a Firewall?
The word firewall illustrates the wall which is used to protect fire. The wall which was built to protect fire. In computer world the firewall protection refers to protect the network or computer from to block certain kinds of network traffic. It creates a barrier between trusted and untrusted network. It protects confidential information and protects the company from un-ethical use. Security of network from unauthorized access is the major role of firewall security.
In computing firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. A firewall typically establishes a barrier between a trusted internal network and untrusted external network, such as the Internet
Firewalls been around for three decades, but they’ve evolved drastically to include features that used to be sold as separate appliances and to pull in externally gathered data to make smarter decisions about what network traffic to allow and what traffic to block. Now just one indespensible element in an ecosystem of network defenses, the latest versions are known as enterprise firewalls or next-generation firewalls (NGFW) to indicate who should use them and that they are continually adding functionality.
Types of Firewalls
Packet filtering firewallThis kind of firewall has a rundown of firewall security rules which can protect traffic based on IP protocol, IP location and/or port number. Under this firewall administration program, all web activity will be permitted, including electronic assaults. In this circumstance, you need interruption aversion, notwithstanding firewall security, with a specific end goal to separate between great web activity and terrible web movement.
Web Application FirewallsWeb Application Firewalls sit logically between servers that support Web applications and the internet, protecting them from specific HTML attacks such as cross-site scripting, SQL injection and others. They can be hardware- or cloud-based or they can be baked into applications themselves to determine whether each client trying to reach the server should be allowed access.
Stateful FirewallsA performance improvement over proxy-based firewalls came in the form of stateful firewalls, which keep track of a realm of information about connections and make it unnecessary for the firewall to inspect every packet. This greatly reduces delay introduced by the firewall.
Next-generation firewallsPackets can be filtered using more than the state of connections and source and destination addresses. This is where NGFWs come into play. They incorporate rules for what individual applications and users are allowed to do, and blend in data gathered from other technologies in order to make better informed decisions about what traffic to allow and what traffic to drop.
How Nano Informatics helps your company meet its Network & Cyber Security Requirements?
We all live in a world which is networked together, from internet banking to government infrastructure, and thus, network protection is no longer an optional extra. Cyber-attack is now an international concern, as high-profile breaches have given many concerns that hacks and other security attacks could endanger the global economy.
2017 Cyber Attack Statistics
A cyber-attack is a deliberate exploitation of computer systems, technology-dependant enterprises and networks. Cyber-attackers use malicious code and software to alter computer code, logic, or data, resulting in disruptive consequences that can compromise data and lead to cyber-crimes such as information and identity theft or system infiltration. A lack of focus on cyber security can be greatly damaging to a business. There is the direct economic cost of such attacks to the business. Nano Informatics is a certified IT company with a reputation for excellence and customer satisfaction providing comprehensive IT solutions since 2008. Nano Informatics offers a wide range of cyber security products and services from the well known companies like :
- Check Point.
- Palo Alto Networks.
- Cisco, etc
We have a very extensive amount of work experience in this field and can help your company meet its Security requirements.