Network security is a kind of policy or practice to monitor or stop unauthorized access into the network. The importance of Network Security involves the authorization of data in the form of network packets that are transmitted to a secure network. The authentication method is provided upon the verification of a user id and password. There may be a private or public network, private means within an organization and public means Cloud services which are open for public utilization on subscription-based methods.
Network Security is the first step a hacker targets to get into an organization. A company or infrastructure has multiple security layers and important pieces of information that could be the company’s account details, employee details, Client details, etc. Once the details are out a companies reputation could be at stake, to prevent that security is an important parameter.
Concept of Network Security
If we discuss the basic concept or the importance of Network Security it is to secure our private network from the outside world. Security is an important parameter to evaluate our pieces of stuff, it could be anything be our organization, money, jewelry, etc. Similarly, a network in our infrastructure needs to be protected from the outside world. Let’s talk about security, we lock our ATM cards through Pin code, our phone with lock and our network with an authentication. Authentication may be of multiple types, two-factor authentication, three-factor authentication.
Two Factor Authentication
This is a very important step to protect our Network, Phone or any authentication platform. Two-factor authentication is a secondary layer of authentication to access the network or the login parameter. This works the same way when we authenticate into our Network using our user id and password, it would prompt us to enter another security pin or code for next stage authentication, same way three-factor authentication requires another additional stage of authentication to log in.
Network Security Practices
Best security practices may be designing the network infrastructure and to determine where to place all the network devices. One best practice is to place a firewall at every junction for security purpose, this is much easier now as all the switches and routers have firewall capabilities which just needs to be turned on and properly configured.
The position of the devices is an important step in Network Security, let’s consider load balancer and in the cluster of web servers and network servers we can also create a DMZ Zone and place the load balancers in DMZ.
Network Address Translation or NAT compensate for the address deficiency of IPv4 networking, it translates a private IP address into public addresses. NAT is a method of connecting multiple computers to the internet using a single IP Address. Working with NAT along with firewalls adds up an extra measure for security in the Network.
A personal firewall is equally important for a single computer in the network. They generally filter out some packets to avoid them from and into your computer. However, we can set up a personal firewall in such a way that our organization’s needs will be fulfilled.
We can also use centralized logging and immediate log analysis to record suspicious logins and event logs from the computer. This practice can help us reconstruct whatever happened during an attack so that we can be prepared for any upcoming attacks on your network in the future.
Network Security Epilogue
Concluding Network Security, we can easily decide the network security parameter as an important step to design the entire Network. The best use to protect the network system is the use of Honeypots and Honeynets. It is a different system that appears to be an attractive target for the external or internal attacker. In this, we have to set up a server for it to appear to be a financial database containing fake records of entries. We may accomplish certain goals, firstly, the hacker will remove your computer from the target list and attack the honeypots as it may contain some important pieces of information. Secondly, since they are not legitimate systems so no users can access it but when the attacker access it, we get enough information regarding our investigation. Thus, we can determine the importance of network security in our organization to ensure the safety and security of our database and employees.