What is network security?
In simple terms, network security is known as a set of measures to protect computer networks against internal and external attacks. In fact, network security involves the process of preventing hardware and software precautions to protect network resources against unauthorized access by unauthorized persons who are attempting to steal or destroy information. These actions originate from the outer layers of the network to the layers The interior continues. Each security layer has specific control policies to manage the permissions of authorized users and prevent hackers from penetrating network information.
The accredited SANS system completes the definition of network security:
Network security is the process of preventative physical and software prevention to prevent unauthorized access, abuse, malfunction, modification, destruction or disclosure of network infrastructure, thus creating a secure platform for computers, users and applications in an environment. Secure on network security.
Today, with the expansion of the use of information technology business, one of the main concerns of network security is the fact that the existence of a security flaw in the network can cause serious and irreparable damage to companies and organizations.
Security of information from past to now As the computer systems entered the departments and organizations, and the need to use computer networks, attacks on security organizations also began. Old systems of security and technology New attacks are the challenges faced by organizations and organizations. Today, information (data) is one of the most important assets of an organization. In the past, the protection of information and data was much easier. All information and data were physically and collectively handwritten and written in boxes, and individuals as guardians were physically protecting this information. In this way, the security of data and information was provided in the past. It can be said that from the same time it has been theft of data. Now that the world of data and data has been changed from analog to digital, the way of theft and in general have changed the types of threats.
Principles of Network Security The above are the definitions of network security. But how can you plan to run network security? The general strategy in this case consists of three steps. In fact, network security includes:
Protection: We need to properly configure our systems and network. Detection: We must monitor the network completely and identify the changes and use of network resources that are signs of infiltration. Response: After identifying problems, you should quickly respond to them and quickly provide a secure environment on your network.
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