Protecting your laptop against intruders-What are firewalls, how to use them, pros and cons
Protecting laptops from unsolicited intruders is one of the chief concerns
among all users. Whether you use your machine for official work or for personal
usage, various threats of the virtual world can cause irreversible damage to
laptops. The threat of electronic access to your laptop network system without
your knowledge is perhaps the worst possible danger faced by users. The
development of the firewall was to counter this threat to personal as well as
official laptops from unsolicited intrusions.
The chief advantage of using firewall in laptops is the enhanced security that
it offers. This device prevents access to the computer network by unsolicited
users. The laptops are thus safe from outside threats. The installation of
security measures like firewall in laptops helps you to protect them from
intruders. However, certain types of firewall have their share of disadvantages
as well. For example, the packet filter has the risk of IP spoofing while the
application gateway has the chance of degrading the performance of the laptops.
However, it is advisable that you install firewall in laptops to keep data safe
from external threats.
The firewall software is a collection of measures to upgrade the security of the
laptops. The device is configured in such a way as to accept, reject, encrypt,
decrypt or proxy traffic movement between computer networks with varying
security domains. The operation of this security system depends on the rules and
criteria set by the user of the laptops. The private network connecting laptops
is thus protected from unauthorized external access and your data is safe.
The firewall device can be used in either the software or the hardware of
laptops; they can also be implemented in both of these. This security measure
protects private networks of laptops from unauthorized access by Internet users.
The messages to and from your laptop undergo a security scan by firewall. If the
message is incapable of meeting the standards set by the user, the firewall
prevents it from being delivered. This helps to protect laptops from unsolicited
Firewalls are one of the necessary security measures that ensure the protection
of laptops from external threats. Different firewall techniques are used for
keeping computer network safe. These include packet filters, which examines all
packets sent or received by the network. Firewall security measures are also set
at the same time of the UDP or TDP connection in the laptops. The application
gateway of firewall is for specific applications on your laptop. Use of proxy
server is also done by firewall in your laptops.
Installation of firewall in laptops can be done if you are well aware of the
technical aspect of computers. Certain websites offer download of firewall
safety net for laptops. While some are available for a free trial period, you
can also avail them for a particular charge. However, while installing firewall
in laptops you need to configure the whole system. Firewall works according to
the rules set by the user, so you need to decide on what security mechanisms you
are going to apply to the laptops.