Network Securities
The Network is an
interconnection of computers to passing information. Networks are including
many problems to trap your life. So the networking administrators are to
provides a high level of security. Network security consists
provisional or policies are adopted by network administrator to improper
access, misuse, modification and accessible resources. The network security
mainly involves the authorization access to the data in a network. The network
are classified into mainly two types are private and public. The public network
is included in the communication in business important role in networks
.another is the government agencies to interact with public the network media
increasing power in day to day. The private networks are private companies use
the intranet facility.
Networks administrator provides a lots of networks securities concept are authentication, firewall, Trojan,
Antivirus software, honey pots etc. Authentication means one type
identification. Authentication is better example is username and password. The
authentication is mainly three types are one factor authentication, two factor
authentication and three factor authentication. One factor authentication
suitable example is password settings. Two factor authentications are mainly
deals with security tokens, mobile phone, ATM card etc. Three factor
authentications concentrating on the finger print and retinal scan etc are
important.
The Firewall implementation services is the
one of the security mechanisms. Firewall is controls incoming and outgoing
network traffic by analyses the data package. Firewall is the bridge between
user and system. Firewalls are generating internal and external system .The
some operating system contain firewalls and internet includes the firewalls
services .The firewalls inform the problem into users. The Trojan is an
security mechanism it is contact with the controller. The hacker use and
purpose of Trojans are E-money Theft, Data theft, payment card information,
downloading and uploading files, installing software including the third party
tools, keystroke logging, encrypting files, modification of registry, crashing
the computer and formatting disks etc. antivirus to inform security
problems like Norton Antivirus And McAfee antivirus.
Network securities mainly deals in malicious
attacks .two types of attacks are active and passive attacks. Passive intruders
are travelling information through network. Active intruders are entered
in any time of network operations. Passive networks attacks are wiretapping,
port scanner and idle scan etc. Active networks attacks are denial of service,
spoofing, buffer flow and Heap overflow
