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Tag Archives: next-generation firewalls
List of TOP Firewall Companies in India
List of Top Firewall Companies in India
List of Top Firewall Companies in India
The best enterprise level firewall Providers Companies in India
So many firewalls and, of course, each one is ‘the best’ one, so how do you choose? Please see below Gartner report with features reviews from hundreds of network security pros who have actually used the products in real-world situations.
Firewall Overview
Firewalls are filters that stand between a computer or computer network and the Internet. Each firewall can be programmed to keep specific traffic in or out. All messages passing through the firewall are examined and those not meeting pre-defined security criteria are blocked.
For example, on the outbound side, firewalls can be configured to prevent employees from transmitting sensitive data outside the network, while on the inbound side, firewalls can be configured to prevent access to certain kinds of websites like social media sites.
Firewall Features & Capabilities
- Application visibility and control
- Identify and control evasive app threats
- Intrusion Prevention integration
- Physical and virtual environment support
- Integration with LDAP and Active Directory
- “Sandbox,” or isolated, cloud-based threat emulation
Firewall methods
Firewalls use several methods to control traffic flowing in and out of a network:
- Packet filtering: This method analyzes small pieces of data against a set of filters. Those that meet the filter criteria are allowed to pass through, while others are discarded.
- Proxy service: In this method, computers make a connection to the proxy which then initiates a new network connection based on the content of the request. In this way, there is no direct connection or packet transfer on either side of the firewall. Network addresses are effectively hidden.
- Stateful inspection: Stateful inspection is the new standard firewall security method that monitors communications packets over a period of time. Outgoing packets that request specific types of incoming packets are tracked. Only incoming packets that are an appropriate response are allowed to pass. Firewalls using this method are often referred to as next-generation firewalls (NGFW).
Pricing Information
The cost of firewalls can vary from free (for personal use) to significant sums of money for enterprise firewalls. Firewalls are often on-premise appliances, but can also be purchased as software which must be installed on a server, or as a cloud service. The range of pricing models is broad making it difficult to compare across vendors. However, an enterprise firewall may cost upwards of $30,000, depending on capability and type.
List of TOP Enterprise Network Firewall ( UTM ) Companies in India
Firewall Firm, a Top Firewall Provider Companies in India, Some firewall solutions are provided as software solutions that run on general purpose operating systems. The following table lists different firewall software that can be installed / configured in different general purpose operating systems.
Firewall Vendors |
Reviews |
Overall Rating |
|
 Fortinet Fortinet |
|||
 Cisco Cisco |
|||
 Palo Alto Networks Palo Alto Networks |
|||
 Check Point Software Technologies Check Point Software Technologies |
|||
 Sophos Sophos |
|||
 SonicWall SonicWall |
4.4 | ||
 Juniper Networks Juniper Networks |
|||
 WatchGuard WatchGuard |
4.3 | ||
 Barracuda Barracuda |
4.6 | ||
 Forcepoint Forcepoint |
4.6 | ||
 Huawei Huawei |
4.5 | ||
 Hillstone Networks Hillstone Networks |
4.6 | ||
 Sangfor Sangfor |
4.7 | ||
 Stormshield Stormshield |
4.6 | ||
 AhnLab AhnLab |
12 | 4.7 | |
 F5 F5 |
4.6 | ||
 Microsoft Azure Firewall Microsoft Azure Firewall |
4.6 | ||
New H3C Group |
4.7 | ||
 VMware Firewall VMware Firewall |
4.8 | ||
GreyHeller |
3 | 5.0 | |
 Venustech Venustech |
2 | 4.5 |
List of TOP Web Application Firewall (WAF) Companies in India
Firewall Firm, a Top WAF Firewall Provider Companies in India, The web application firewall (WAF) market is being driven by customers’ needs to protect public and internal web applications. WAFs protect web applications and APIs against a variety of attacks, including automated attacks (bots), injection attacks and application-layer denial of service (DoS). They should provide signature-based protection, and should also support positive security models (automated whitelisting) and/or anomaly detection. WAFs are deployed in front of web servers to protect web applications against external and internal attacks, to monitor and control access to web applications, and to collect access logs for compliance/auditing and analytics. WAFs exist in the form of physical or virtual appliances, and, increasingly, are delivered from the cloud, as a service (cloud WAF service). Firewall Firm, a TOP Firewall Provider Companies in India, Provides All type of Firewall Security and Support Services in India,
WAF Firewall Vender
|
Reviews |
Overall Rating |
|
| Sucuri Sucuri Website Firewall (WAF) |
4.6 | ||
| Imperva
Imperva Incapsula WAF |
4.5 | ||
| F5 | 4.5 | ||
| Fortinet FortiWeb Web Application Firewall |
4.4 | ||
| Signal Sciences | |||
| Citrix | |||
| Cloudflare | |||
| Akamai | 4.5 | ||
| Amazon Web Services (AWS) | |||
| Barracuda | |||
| Rohde & Schwarz Cybersecurity (DenyAll) | |||
| Radware | 4.6 | ||
| Ergon Informatik | 4.6 | ||
| United Security Providers | |||
| Positive Technologies | 11 | ||
| Instart | |||
| Venustech | 10 | 4.5 | |
| Chaitin Tech | 9 | 4.8 | |
| Oracle | 9 | 4.4 | |
| NSFOCUS | 6 | 4.5 | |
| Microsoft | 6 | 3.7 | |
| Trustwave | 6 | 3.5 | |
| Penta Security |
5 | 5.0 | |
| Symantec | 5 | 4.4 | |
| Alert Logic |
5 | 3.6 | |
| DBAPPSecurity |
4 | 4.5 | |
| NGINX | 4 | 4.3 | |
| Qualys |
4 | 4.0 | |
| Grey Wizard |
3 | 5.0 | |
| A10 Networks |
3 | 4.7 | |
| Google |
3 | 4.7 | |
| Kemp |
3 | 4.3 | |
| SiteLock |
3 | 4.3 | |
| Qihoo 360 |
3 | 4.0 | |
| Piolink |
2 | 4.5 | |
| Wallarm |
2 | 4.5 | |
| Alibaba Cloud |
2 | 4.0 | |
| Templarbit |
1 | 5.0 | |
| Threat X |
1 | 5.0 | |
| AdNovum |
1 | 4.0 | |
| Verizon |
1 | 4.0 | |
| Bluedon Information Security Technologies |
1 | 3.0 |
Firewall Firm, a TOP Firewall Provider Companies in India, Provides All type of Firewall Security and Support Services in India,
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Firewall
Firewall
Firewall
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.
