What is meant by network security?
8 minute(s) read
Published on: Nov 15, 2021
Updated on: Nov 25, 2021
What is network security?
Network security generally refers to all the measures that were taken to prevent system security problems . To prevent problems in computer networks, we take some measures called network security. Or have hardware. It should be noted, however, that some of these network security features can also be provided by Roles.
What are the solutions in network security?
Below are some network security solutions that can be used to prevent any dangerous data from being compromised and entering the system.
- Access control
- Antivirus and antimalware software
- Application security - Behavioral analytics
- Data loss prevention
- Email security
- Mobile device security
- Network segmentation
- Security information and event management
- VPN stands for Virtual private network
- Web security - Wireless security
- Access control:
It should be noted that in general, it is better that in all large and small networks or private and public networks, it is better to control and manage all accesses. If we do this, we can get some infection Prevent your network and in other words we can say that managing and restricting access to the network is one way to take care of the network and increase its security. If we do this, not all people will be able to access the network, and that is why we can increase network security to some extent. By restricting access to the network and the system, not everyone can access important data and resources, they will have access to the data and resources that are allowed to them, and it is in this way that network and system administrators can Have access to all resources. Therefore, it can be said that one of the ways to protect the network and increase its reputation is to limit the access of all people and then manage.
- Security software to combat malware and viruses:
The use of some security software such as antivirus and anti-malware is essential, and we must use them to take care of the system and its data to some extent. It is worth noting that there are some roles within this type of security software that are being updated and become stronger by updating, and then they can take care of their systems and data. The function of this type of security software is to prevent the entry of some viruses and malware to prevent the occurrence of some security problems for the data and system, such as theft of important data. Some malware and viruses may act cleverly trying to sneak into the system, in which case antiviruses, which are software designed and developed to increase network security ( in Slovak: softvér navrhnutý a vyvinutý na zvýšenie bezpečnosti siete ) and detect and counteract viruses, Prevent them from logging in.
- Software Security:
As you know, there are many different types of software that each of these softwares should be designed and developed based on some security principles . There is web-based software, computer system software, mobile software, etc., each of which is designed and developed to meet the needs of the user, and it is better for developers to observe security principles when designing and developing them. . Most security issues with software can be seen as bugs. And after identifying it, it is better that the appropriate solutions take the necessary measures to deal with them.
- Performance analysis and criteria determination:
After normal and permissible behaviors at the network level are identified, based on them, some appropriate criteria can be developed to control normal and suspicious functions. Once we have established some criteria for controlling the performance of the network, monitoring and review of the network should be done continuously. DLP, which stands for Data Loss Prevention , is important for preventing data and information from being leaked out of the network, and the network support team should be able to use some solutions to prevent this from happening and cause the information to leak. And important network data is not transferred outside the network.
- Email Security:
Emails are one of the ways that users can communicate. Of course, it should be noted that emails, in addition to being a means of communication, can also be a way of hackers to infiltrate the system and network. It should be noted that some hacks and attacks such as phishing attacks and social engineering can also be done through emails, so it is better to ensure the security of emails.
- Use of firewalls:
One of the best tools for checking and analyzing data packets in the network is to use firewalls that examine all the data packets that want to enter the system and if the data is contaminated from entering them. The system prevents, Otherwise, they are allowed to enter. Firewalls can be software or hardware or even a combination of the two that you should check the type of firewalls and recognize them before you can choose the appropriate type according to the needs of the network and system.
- Phone security:
Since with the advancement of technology, many platforms are done on phones and the phone is also a personal smart device, we must be serious in providing security so that we can protect the data and information in our phone . It is easier for hackers to infiltrate phones, and for this reason we must provide security.
- Web Security:
There are some websites that are malicious and by entering them, our system may have a problem and the data in it may be stolen by hackers. For this reason, it is better to spam them in the face of these types of websites to prevent intrusion into the system and the destruction and theft of its data.
What are the seven layers of OSI?
To better understand the concept of network security, it is better to get acquainted with the basic concepts in the network beforehand. OSI is one of the standards used to describe network structure .
Seventh layer Application Layer:
This layer has the task of giving the user request that is given to the network to the system. For example, we can say that if we enter the site address in the browser, this request will be processed by this seventh layer.
Layer 6 Presentation Layer:
The task of this layer is to interpret the requests made in the upper layer, the seventh layer, to the other lower layers. In other words, we can say that this layer can prepare requests for processing and execution on the network. Interpretation of requests, encryption, compression, etc. is done in this network layer.
Fifth layer Session Layer:
The task of this layer is to combine requests and announce them to the service. For example, we can say that this layer is responsible for requesting connection to http or https services.
Fourth layer Transport Layer:
The task of this layer is to transfer the strings at the network level. In other words, we can say that requests in the network context to different services can be in the form of a set of requests in the form of strings.
Third layer Network Layer:
This layer also has the duty and responsibility to deliver the data to the desired service and then get confirmation from them. In other words, it can be said that this layer is like the post office that manages the shipments.
Second layer Data link Layer:
All the identity information of the devices that are connected to each other is stored in this layer to communicate between them.
First layer Physical Layer:
The type of connection and communication methods are specified in this layer. The type of hardware and software connection of the systems is specified in this layer.
In this article, I talked about the concept of network security to protect the network and its data , we take some measures called network security. To prevent system theft or problems when connecting systems to each other and communicating between them to transfer data, we must take the necessary measures to ensure network security.Website SEO analysis services