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Basics of Computer Network Security

Networked systems are a major target for cyber-attacks. This is particularly the case because attacking computers in a network can be easier as opposed to attacking standalone computers. Owing to this, therefore, care should always be taken to ensure that networked systems are secure and are not prone to threats posed by cyber attackers. There are various things that can be done to warrant the security of a computer system as we shall discuss shortly.

The basic most network security feature that any company can adopt is what is called the user identification policy. The policy basically lays down the procedures that users should follow in login into the systems and what times they should do so. The policy further should define the hierarchy of network users and assign different roles on each user. The top of the tier should comprise of the admins who are responsible for adding new users or modifying existing users. There can also be a higher tier for super users who are responsible for auditing the system.

Passwords policy is another element of the access policy. This policy defines the nature of login credentials users can use to access the systems. Since not all network users may be knowledgeable on security matters, it is crucial to help such users be aligned with the organizations expectations. Execution of the policy should be done by putting into place systems that are able to restrict access to compliant users only.
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Authentication software can be installed to enforce password policies. these systems can be purchased from security agencies whose main concern is network security. Based on the needs of an organization, the right software may be sought. The software should be able to cater for as many password matrixes as possible to allow the users create passwords that are unique and hard for unauthorized users to guess.
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The password policies should also dictate the level within which information sharing is to take place. Users should never be allowed, for instance, to share system configurations to outsiders. The policy should also inhibit the introduction of unvetted information in the form of removable storages such as flash disks since these can be the main entry point for attackers. Other important details that should be in the policy should also be guidelines on password validity, expiry and consequences that can be faced in case there are violations of the policy.