What is Firewall? I saw in one website Firewall is software
and hardware and combination of software and hardware.It is
used to protect user information or avoiding crackers.how
it is?Whether it is hardware?If not then why the images are
like that?(a wall ).Please help me by answering this
question.Advance thanks.
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Answer / natraj
A firewall is a set of related programs, located at a
network gateway server, that protects the resources of a
private network from users from other networks. (The term
also implies the security policy that is used with the
programs.) An enterprise with an intranet that allows its
workers access to the wider Internet installs a firewall to
prevent outsiders from accessing its own private data
resources and for controlling what outside resources its own
users have access to.
| Is This Answer Correct ? | 5 Yes | 1 No |
Answer / sanjai
Firewalls as first line of defense
The main function of a firewall is to act as the first line
of defense into your network, protecting it from external
attacks. You can also use a firewall to open up ports for
specific incoming and/or outgoing traffic. Firewalls also
have logging facilities that will inform you about any
failed attacks on your network.
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| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / umar
Firewall could be a Software application or an Hardware
Device. Software Firewall is installed on OS and Hardware
Firewall installed on the network connection. The main
purpose of Firewall is to block the traffic. It allows the
incoming and outgoing traffic based on the rules we create.
Firewall examines each and every packets and decide to allow
or block based on the rules. There are different types of
Firewall. Statefull, stateless and Deep Packet Filtering
which is called IDS(Intrusion Detection System).
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / s.m.feroz ahmed
Hi,
Firewall is defined as a device which allows Interesting
Traffic inside Network.Firewall is placed in between
outside and inside Network.And it allows interesting
traffic to allow inside network.
| Is This Answer Correct ? | 0 Yes | 0 No |
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What is Firewall? I saw in one website Firewall is software and hardware and combination of software and hardware.It is used to protect user information or avoiding crackers.how it is?Whether it is hardware?If not then why the images are like that?(a wall ).Please help me by answering this question.Advance thanks.
Networking Protocols 
