The computer network security comprises all the policies and procedures that are adopted by the network administrators for monitoring and preventing any kind of unauthorized access, up-gradation or misuse of the accessible resources. It involves the authorization of accessing data in a network, which is controlled by network administrator.
The administrator provides ID and password to the users so that they can access the programs as well as information. It encompasses different modes like the public and private networks. It can be a private network that can be accessed by a particular organization or it might be a public network that is opened to all.
The computer network security must embrace all the aspects of the network, starting from desktops till other peripherals. The multi-layered and multi-faceted approach to a network security for organizations or enterprises provides excellent security against external as well as internal threats.
If it is about a small network or single computer system, it will be sufficient to have a router along with an integrated firewall. On the other hand, when it comes to the large network, it will be the most efficient option to get a dedicated firewall within the network perimeter. There are plenty of good dedicated firewall applications that allow secure VPN connectivity. The primary functions of dedicated firewall are blocking, inspection and reporting of malicious network.
Content filtering device is one of the best complements for the dedicated firewall. Such sort of devices is basically helpful for the filtering, monitoring, reporting and regulating the entire web related traffic. The content filters are installed in the center of internal switch and router or firewall. The inbound as well as outbound traffic of internet have to transit such filters that are often referred as bridged mode.
Effective monitoring is of paramount importance for the computer network security. It helps in the adequate management of the networks so that the activity log of the routers and servers can be closely viewed and reported.
Moreover, the desktops and servers must be protected against spyware and virus threats. Now-a-days, you can find a range of threat protection software in the market. An ideal threat protection that is perfectly suitable should be cost-effective and must provide daily updates about viruses. In addition to this, it should comprise the centralized system for management and reporting as well as a dynamic protection for the run-time security.
Another facet of computer network security is granting access to various users in the network. For instance, top management might want to access the systems of their teams or subordinates. They will get the limited admin rights for handling their group. It can be a case that they might not get access to the admin rights for the entire networks. You also have the right to restrict the users from installing software over their workstations. Same way, you can prevent the access to the systems through portable storage devices. Basically, it is very important to map the entire network infrastructure clearly.
Lastly, the physical security measures should not be forgotten while considering overall security aspects of computer network. For achieving this, the servers are required to be kept with regulated access. It is always better to check the security of the backup media, whether it is off-site or on-site. Not to forget, the critical information of your company should not get into wrong hands, and therefore, you should have secured networks so that you can sail safely towards your business aims.
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