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Fortinet – FortiGate Firewall

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Hardware plus 1 year 8×5 Forticare and FortiGuard UTM Bundle
1 to 15 users
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Hardware plus 1 year 8×5 Forticare and FortiGuard UTM Bundle
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Sophos XG 85 with Full Guard 1 year license
( For 20 User )
Rs. 28,078
Sophos XG 105 with Full Guard 1 year license
( For 30 User )
Rs. 42,237.65
Sophos XG 115 with Full Guard 1 year license
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WatchGuard Firewall Firebox T15 with 1-Year Total Security Suite
( For 10 User )
Rs. 43,520/-
WatchGuard Firewall Firebox T35 with 1-Year Total Security Suite
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WatchGuard Firewall Firebox T70 with 1-Year Total Security Suite
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Firewall

Firewall

Firewall,What is a Firewall?,Defined,Explained,Explored What is Firewall?,Fire Wall,How Firewall Technology Works?,Firewall - Computer Network Security System

Firewall,What is a Firewall?,Defined,Explained,Explored What is Firewall?,Fire Wall,How Firewall Technology Works?,Firewall – Computer Network Security System

What is Firewall?

A firewall is a network security device located between your internal network and the wider Internet. A firewall monitors incoming and outgoing network traffic – blocking or allowing it based on a set of configurable rules.

Firewalls are a fundamental piece of security and typically form the first line of defence on a network. Acting as a filter against bad connections from the outside world.

A firewall works by comparing the data sent into or out of the network against a list of rules. Based on the results of the rule checking, the firewall will then either block or allow the connection.

How does a firewall work?

Firewalls work by inspecting data packets (small chunks of data) against an internal list of rules. Here are some of the more common ones:

  • IP addresses – filter out traffic from suspicious IPs
  • Domain names – block traffic from known malicious domains
  • Ports – deny traffic trying to enter through a certain port
  • Contents – block data packets containing certain keywords

A firewall scans the contents of the packet and then determines whether to let it through based on the rules in place. On a typical network setup, all connections to the Internet flow through the firewall. Meaning it inspects all inbound or outgoing packets.

How does firewall inspection work?

The process of inspection involves comparing a packet’s contents against the firewall’s set of rules. Depending on if the rule is setup as a blacklist or whitelist, it will react differently to a match.

  • A blacklist rule will block any packets which match the criteria.
  • A whitelist rule will block any packets which don’t match the criteria.

A firewall’s rules are highly configurable. Meaning you can make the packet inspection process unique to your security setup. Here are some examples of how you could use custom firewall rules:

  • Creating a whitelist for your own company IP. Preventing any outsiders from accessing what’s behind the firewall.
  • Making a blacklist for the IP of a known malicious file server. Stopping it from distributing malware onto your network.
  • Creating a whitelist for certain domain extensions (.com, .co.uk .edu e.t.c.) on outgoing traffic. Blocking staff from accessing potentially dangerous sites.

Why are firewalls important?

Firewalls are often compared to a lock on the door to your network. But it might be more accurate to say that a firewall is the door.

Without a firewall in place, any connection can flow freely in or out of your network. Including connections from known malicious sources. This means you could experience unauthorised access to networked files. Leading to a data breach, malware infection or worse.

You need a firewall to filter out the bulk of malicious connections. And there’s a lot of malicious connections. One study found that within 52 seconds of being online, servers were being probed by hackers. With an average rate of 757 connection attempts per hour.

Are firewalls hardware or software?

Firewalls can be either a hardware appliance or a piece of software which runs on a machine. So, the answer is both.

Not helpful, I know.

But the main difference between the two is this:

  • Software firewalls tend to protect the individual machine it’s installed upon, typically a laptop or PC
  • Hardware firewalls usually protect many machines or an entire network.

What types of firewall are there?

Circuit-level

Circuit level firewalls are a type of firewall that monitors transmission control protocol (TCP) handshaking. It ensures that the communication between packets is legitimate and not malicious.

Stateful inspection

A firewall with stateful inspection considers the state of current connections when filtering packets. This means that the firewall can block the packet in one case but allowed in another. Depending on the current state of the connection.

Unified threat management (UTM)

Whilst technically not a type of firewall, UTM is instead an advanced security appliance which combines the security functions of many different security appliances. One of these being a firewall. We have an article explaining everything you need to know about UTM if you wish to learn more.

What is a next-generation firewall?

A next-generation firewall (NGFW) contains all the normal defences that a traditional firewall has and more. The most common additions are intrusion prevention software and application control. But certain vendors have other bonus security features. NGFWs are also capable of deep packet inspection which enables more robust filters.

Intrusion prevention software monitors network activity to detect and stop vulnerability exploits from occurring. This is usually done by monitoring for breaches against the network policies in place.

Application control software sets up a hard filter for programs that can send or receive data over the Internet. This can either be done by blacklist (blocks any programs in the filter) or by whitelist (blocks any programs not in the filter).

What is deep packet inspection?

Deep Packet Inspection (DPI) is a type of packet inspection which analyses the full contents of a data packet. Instead of only information in a packet’s header (where it is coming from and going to).

This enables DPI to filter out malicious packets, such as viruses and trojans, with better accuracy. As rather than only looking at the sender and destination, the packet’s contents can be used in filters as well.

This allows DPI to uncover a broader range of security threats because it will discover packets with a malicious payload but an innocuous header.

Where did the name firewall come from?

A final piece of trivia: the name firewall originated from the real-world application of fire partitions used in buildings. These would be walls that were implemented into a building to act as a barrier to stop fire spreading from one room to another.

The similarity between a fire spreading through a building and a computer virus spreading through a network prompted the same name to be adopted for the network device.

FAQ

Top Best Firewall Companies in India : Check Point. FortiGate. Palo Alto Networks. WatchGuard. Seqrite Firewall. Cisco Asa Firepower. Cisco PIX. Mcafee Firewall.
Firewalls provide protection against outside cyber attackers by shielding your computer or network from malicious or unnecessary network traffic. Firewalls can also prevent malicious software from accessing a computer or network via the internet.
There are three basic types of firewalls that are used by companies to protect their data & devices to keep destructive elements out of network, viz. Packet Filters, Stateful Inspection and Proxy Server Firewalls. Let us give you a brief introduction about each of these.
A firewall is a security device — computer hardware or software — that can help protect your network by filtering traffic and blocking outsiders from gaining unauthorized access to the private data on your computer.
Firewalls provide protection against outside cyber attackers by shielding your computer or network from malicious or unnecessary network traffic. Firewalls can also prevent malicious software from accessing a computer or network via the internet.
A firewall is a protective measure that safeguards an individual's or company's computer network. It provides two basic security functions, including packet filtering, which inspects traffic at the packet level, and acting as an application proxy, providing security measures at the application level.

Firewall

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Web Application Firewall

Web Application Firewall

Web Application Firewall for protect your website from hacking

A web application firewall (WAF) is an application firewall for HTTP applications. It applies a set of rules to an HTTP conversation. Generally, these rules cover common attacks such as cross-site scripting (XSS) and SQL injection. A Web application firewall (WAF) is a firewall that monitors, filters or blocks the HTTP traffic to and from a Web application. A WAF protects a Web application by controlling its input and output and the access to and from the application

Comprehensive, High-Performance Web Application Security

FortiWeb Web Application Firewall (WAF)

  • PCI DSS compliant
  • Top security—NSS Labs “Recommended”
  • Groundbreaking throughput up to 20 Gbps
  • Available in hardware and virtual form factors

Industry-leading WAF Security and Performance

Unprotected web applications are the easiest point of entry for hackers and vulnerable to a number of attack types. Our multi-layered and correlated approach protects your web apps from the OWASP Top 10 and more. Our Web Application Security Service from FortiGuard Labs uses information based on the latest application vulnerabilities, bots, suspicious URL and data patterns, and specialized heuristic detection engines to keep your applications safe from:

  • Malicious sources
  • DoS attacks
  • Sophisticated threats such as SQL injection, cross-site scripting, buffer overflows, cookie poisoning
  • More!

It also includes layer 7 load balancing and accelerated SSL offloading for more efficient application delivery.

The FortiWeb WAF provides near 100% protection from even the most sophisticated attacks with:

Vulnerability scanning

IP reputation, attack signatures, and antivirus powered by FortiGuard

Behavioral attack detection, threat scanning; protection against botnets, DoS, automated attacks, and more

Integration with FortiSandbox for ATP detection

Tools to give you valuable insights on attacks

Available in the AWS and Azure Marketplaces

Our web application firewall – Website Firewall is designed to filter traffic before it reaches your WordPress or Joomla website. The majority of malicious website attacks are therefore blocked which increases website security dramatically.

Website Firewall

Website Firewall

Traditional Firewalls or Web Application Firewalls?

Traditional firewalls protect IT environments against external attacks, by allowing and blocking connections to certain areas.

These firewalls control incoming and outgoing network traffic, based on a set of rules.

Here is a basic example:
Let’s suppose your company has a web server inside its infrastructure. In order for the web server to be reachable from outside your company, some rules will have to be established to authorize web traffic to and from that server.
Some “ports” will be open, on a given IP address (the one of your server).
Your company can choose to allow web traffic only, or allow other traffic according to its needs.

Traditional Firewall – web traffic enabled

Traditional Firewall – web traffic enabled

In our example, allowing web traffic only does not guarantee that this traffic is safe.
The web has enabled many possibilities and allowed easy access to resources and data. Unfortunately, web technologies are not completely safe by nature and threats are as numerous as opportunities. Traditional firewalls cannot analyze in details what is reaching the server.

By opening communication channels to web servers, the door is also open to new threats: application attacks.

Traditional Firewall – dangerous traffic coming in

Traditional Firewall – dangerous traffic coming in

The web traffic can embed many types of attacks: SQL injections, Cross Site Scripting, Cross Site Request Forgery, session hijacking attacks… hundreds of possible attacks.

This is where web application firewalls (WAF) have their role to play.
By analyzing web traffic, and with a smart detection engine, web application firewalls are able to distinguish dangerous from legitimate traffic and block attacks.

Web Application Firewall blocking dangerous traffic

Web Application Firewall blocking dangerous traffic

From a technical standpoint and referring to the OSI model (conceptual model describing communication system layers), traditional firewalls act on the three first layers (physical to network layers), and web application firewalls act on the seventh layer (application layer).

Protect and Speed Up Your Website

Features and Benefits

Get website protection and performance with a professional team to help.

Protection

The Website Firewall is a cloud-based WAF that stops website hacks and attacks. Our constant research improves our detection and mitigation of evolving threats, and you can add your own custom rules.

  • Instantly Block Hackers
  • DDoS Mitigation and Prevention
  • Virtual Patching and Hardening
  • Protect Brand Reputation
  • Prevent Zero-Day Exploits

Performance

Our CDN makes your site faster and highly available across the world. Built on our global network of secure data centers, your visitors, customers, and search engines will notice a dramatic improvement.

  • Smart Caching Options
  • Fast HTTP/2 Support
  • Resource Optimization via GZIP Compression
  • Reduced Server Load
  • Works with Other CDNs

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