Network Security

                                        Network Security

     Network Security:  

               Network security is a one privacy  policy  which tries to keep a secure the whatever data,files,directories in your computer network.It gives security hardware as well as software.

                Authorization of access to data in network which is controlled by the network admin.Users are assigned only using their username and password.

Various way which gives security to the network: 

1. Encryption
2. Firewall
3. Antivirus software
4. IDS(Intrusion Detection System)
5. IPS
6. UTM    

1. Encryption:

        Encrypting communication  between two hosts its also gives a privacy that's security.

2. Firewall:

        Its one types physical barrier. It filter network traffic and reduce the risk that malicious packets travelling over the network.

3.Antivirus software:

         Its one virus protection software. Which prevent to viruses,worms and Trojan horses.

Its contains bundles of anti-spyware,anti-malware,firewall,PC-Optimization, file-protection.

4.IDS (Intrusion Detection System):

       An IDS is a device or software application that monitors a network or system malicious activity.

Its sending up alerts when it finds such items.

5. IPS(Intrusion Prevention System):

       Main work of an IPS is to identify suspicious activity, log information attempt to block the activity . Most of uses for the prevent the D-DOS activity.

     It includes:

            i. sending a alarm to an administrator 

           ii. Dropping the malicious packet

          iii. Blocking traffic from the source address

           iv. Resetting the connection

6. UTM (Undefined Threat Management):

         Its one security related term. It includes anti-spyware, anti-spam, network fire walling,intrusion detection and prevention,content filtering and leak prevention.It also provide facilities of  Network Address Translation(NAT),Virtual Private Network(VAN).