Be it a personal PC or a public server, our devices are filled with data that can
be used by cybercriminals to extort or even make our lives quite unpleasant, and
in an age where most of our lives are usually spent in front of a device, it is
essential that we take all the necessary steps to ensure its safety. That’s where a
firewall comes in handy. If you use Windows, Mac OS, Linux, Android, or any
other OS of your choice, most of them come with a firewall built in, but these
can only offer minimal security, which is enough for most use cases. But if your
work is of a confidential nature or if it is a server that if compromised could
cause widespread disruption of operations then you will have to invest in a
reliable and strong one from an authorised Firewall Supplier in Dubai.
A PC firewall is a software program or a hardware device that helps to protect a
computer system from unauthorized access and malicious activities over the
internet. Simply put, it is a barrier that only allows authorised traffic to enter
and exit a network, blocking all other types of communication. And a firewall
from certified companies like FortiGate & SonicWall firewall can give the user
a substantial sphere of protection from attackers.
In this post, we’ll go through a PC firewall & functionality and the important
things to know about it.
1. Packet Filtering
The most basic and common approach for firewalls to manage traffic is
packet filtering. Data packets that are sent and received through a
network are analysed, and depending on a set of predetermined
parameters, it is decided whether to allow or restrict them. These rules,
which may be customised to allow or prevent access to particular IP
addresses, ports, protocols, or applications, are normally defined by the
user or the system administrator. For instance, a firewall can be set up to
only let certain types of communication, like HTTP or FTP, or to prohibit
all incoming data from a certain IP address. Thereby blocking your
systems from a foreign party from accessing and compromising your
data. And for that reason, you should always choose one from an
experienced company like DataWave, the best Firewall provider &
Installation company in Dubai.
2. Stateful Inspection
On top of setting protocols to restrict unauthorized access, firewalls
usually have a function called Stateful Inspection to monitor if any
foreign user had slipped through the barrier and is a standard feature
provided by almost all IT Infrastructure Services Providers in Dubai. It
includes analysing both the data packets & contents and the environment
from which they are being sent from. This enables the firewall to base
decisions about whether to let or deny traffic on the actions of the
application or protocol with more information. For instance, the firewall
will determine whether there is an existing connection and whether the
request is valid before allowing a data packet containing a request to
create a new connection to travel across the network.
3. NAT
NAT or Network Address Translation is a technique used by firewalls to
allow multiple devices on a local network to share a single public IP
address. Data packets' source and destination addresses are changed by
NAT so that they seem to be coming from or going to the firewall's public
IP address. This increases security by shielding the internal network from
outside threats and enables several devices on the same network to access
the internet using a single public IP address. This is a basic but quite
useful function and you should make sure that your Firewall Supplier in
Dubai provides that.
4. VPNs
Virtual Private Networks (VPNs) are another feature commonly found in
firewall software that provides an additional layer of security by
encrypting all traffic between the client and server. It works by creating a
secure tunnel between the client and the server, which also encrypts all
the traffic passing through it. This can help safeguard sensitive
information like passwords, credit card numbers, and other personal data
by making it more difficult for attackers to collect or eavesdrop on the
communication. If you are looking for a reliable VPN, you can rest
assured with DataWave, the best provider of Firewall & VPN solutions in
Dubai.
A firewall operates by monitoring and controlling the network traffic based on
the predefined protocols set by you and your Firewall Supplier in Dubai. It can
use various techniques such as packet filtering, stateful inspection, network
address translation, and virtual private networks to protect the PC or server from
unauthorized access or cyber-attacks over the internet. By implementing a
firewall, users can significantly improve the security of their devices and data.