Cybersecurity Devices and Technologies.pptx

There is no single security appliance or
piece of technology that will solve all the
network security needs in an organization.
We must consider what tools will be most
effective as part of our security system.
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 Security appliances can be stand alone
devices like a router or software tools that are
run on network device.
 They fall into six general categories.

 While routers are primarily used to
interconnect various network segments
together, they usually also provide basic
traffic filtering capabilities.
 This information can help define which
computers from a given network segments
can communicate with which network
segments.

 Firewalls can look deeper into the network
traffic itself and identify malicious behavior
that has to be blocked.
 Firewalls can have sophisticated security
policies applied to the traffic that is passing
through them.

 IPS systems use a set of traffic signatures that
match and block malicious traffic and attacks

 VPN systems let remote employees use a
secure encrypted tunnel from their mobile
computer and securely connect back to
organization’s network.
 VPN systems can also securely interconnect
branch offices with the central office network.

 These systems use signatures or behavioral
analysis of applications to identify and block
malicious code from being executed

 Other security devices include web and email
security appliance, decryption devices, client
access control servers and security
management systems.

 In computer networking, a firewalls is designed
to control or filter which communication are
allowed out of device or network. A firewalls can
be installed on a single computer (host-based
firewall) or it can be standalone network device
that protects an entire network of computers and
all of the host devices on that network(network-
based firewall)
 A computer and network attacks have become
more sophisticated, new types of firewalls have
developed, which serve different purpose

1. Network layer firewall
2. Transport layer firewall
3. Application layer firewall
4. Context aware layer firewall
5. Proxy server
6. Reverse proxy server
7. Network address translation(NAT) firewall
8. Host-based firewall

1.Network layer firewall
This filters communications based on
source and destination IP addresses
2.Transport layer firewall
Filters communications based on
source and destination data ports as well as
connection states
3.Application layer firewall
Filters communications based on an
application, program or service.

4.Context aware layer firewall
Filter communications based on the
user, device, role, application type and
threat profile.
5. Proxy serer
Filters web content request like
URL’s, domain names and media types.
6.Reverse proxy server
Placed in front of web servers
reveres proxy servers protect, hide, offload
and distribute access to web server.

 7.Network address translation (NAT) firewall
This firewall hides or masquerades the
private address of network hosts.
8.Host-based firewall
Filters port and system services calls
on single computer operating system.

Cybersecurity Devices and Technologies.pptx

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Cybersecurity Devices and Technologies.pptx