Firewall is a gateway
between the Organization and the outside Network. You can compare it as a
Watchman at your gate. Your Watchman is the first level of the security of your
Premises. Hence He must be equipped with Latest security gadget and same is applicable
to the firewall. You should know everything about your firewall.
Types of Firewall
There are different Types of
firewall as listed below
1. Proxy
Firewall
It
filter the messages at Apllication Layer. It works as an Intermediary between
the Internal Client and the server hosted outside. It Filters the incoming
traffic such as HTTP and FTP. In addition to determine which traffic to be
allowed, a proxy firewall uses stateful
inspection technology and deep packet inspection to analyze incoming traffic
for signs of attack.
2. Stateful
Inspection Firewall
It
works on Session Level Protection. When any Internal device Establish a connection
to the Device hosted at outside, a session Established between both . SI Firewalls
track the state of sessions and dropping packets that are
not part of a session allowed by a pre-defined security policy.
3. Unified Threat Management (UTM) Firewall
It have the feature of traditional Firewall with other Security
feature such as gateway level antivirus,
intrusion detection and prevention, Malware Protection, Web filtering etc. It manage manage a wide
range of security
functions with a single management console Such firewall are Ideal for small
to
medium Sized Enterprises
4. Next-Generation Firewall (NGFW)
The Next generation
Firewall as the name suggest is more Advanced Version of Traditional Firewall. In
this era , having a Next Generation Firewall is most important.
As threats to personal devices and larger
networks are changing every day. With the flexibility of a Next-Generation
Firewall, it protects devices
and companies from a much broader spectrum of intrusions. Although these
firewalls are not the right solution for every business, security professionals
should carefully consider the benefits that NGFWs can provide, as it has a very
large upside.
5. Threat-Focused NGFW
This is the
advanced version of Next Generation Firewall. It focused the advanced threat detection and remediation.
It also knows which assets are more prone to risk with a complete context
awareness report. It can respond to attacks using intelligent security
automation and is capable of handling various other security-related issues.
Why We need the firewall?
This question should not arise here in today's scenario as all of us are aware about the need of it but again I am answering it as follows:
1.
To Prevent unauthorized outside Access
2.
Blocking unwanted Website
3.
Safe Banking Experience
4.
Filter out immoral content
5.
Provide VPN connectivity at remote location
Hence it is necessary to know the feature of the Firewall and
how many users it can handle. There are so many Company which provide the
Firewall. Some of them are Listed below:
1. Check Point
2. Fortinet
3. Cisco
4. WatchGuard
5. Sophos
6. Juniper
7. SonicWALL
The above is the list of Some of Big Players but today there are
so many small Companies which offer the Firewall. Hence before going to any
firewall one have to go through the feature being provided.
Is it necessary to Update Licenses of firewall Every Year?
It has been found that some of the organization do not take the
updated Licenses of the Firewall, due to the cost. But it is recommended to get the Updated License
when it expire otherwise Some of the Function being used for Protection will
stop the Work and your network can be
compromised.
Note: In case if you want to consult anything regarding your
Network/Firewall. You can mail me at singhalyogesh@gmail.com
with the Details.
In my Next Blog: I am going to discuss about the Advantages of
Having Original Software.
Keep Reading
-Thanks
