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2.2.1.5 Telnet
Telnet is a terminal emulation protocol, part of the TCP/IP suite of protocols and
common
in the UNIX world, which provides remote terminal-connection services [6].
2.2.1.6 DNS
DNS stands for Domain Name Service, sometimes referred to as Domain Naming
System. DNS is a distributed addressing system that resolves the domain name into the
numeric IP address.
DNS
lets
you
use
the Internet without
having
to remember
long
lists
of cryptic
numbers. The
most common
high- level domains on the Internet
include:
.com,
.org, .edu, .mil, .gov, .int, .net, etc [6].
2.2.1.7 OSPF
OSPF stands for Open Shortest Path First. OSPF is a routing protocol used on TCP/IP
networks
that
takes
into
account
network
loading
and
bandwidth
when
routing
information
over
the
network.
Routers
maintain
a
map
of
the
network
and
swap
information on the current status of each network link. OSPF incorporates least-cost
routing, equal-cost routing, and load balancing [6].
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