Basic Steps Behind Network Security

Posted by Blog Tipster

Aug 7, 2013 8:22:00 AM


Physical Security-  Where you set up your network and how you physically protect it is one of the first areas to think about. 

  • Set up your system on a sturdy and stable surface as close to the ground as possible.
  • Be sure your system is safe from excessive sunlight, dust, water, and fluctuating temperatures.
  • Set up system in a room with a lock and possibly an alarm system.
  • Protect or disable the power and reset switches.

Network Security-  The overall security of your network and setting up restrictions is another very important step to take.

  • Set up regular security updates about vulnerabilities to the software on your network.
  • Test all services that interact with the network to ensure that they do not provide useful security information to unauthorized users.
  • Limit users access to sensitive information on the system.
  • Keep logs of all approved network activity.
  • Encrypt Data
  • Check for unauthorized attempts to connect to your system.
  • Set up a monitoring service to check for unauthorized network activity.

User Security-  Setting up specific standards and rules for each user is critical to avoid one user from messing up the system. 

  • Create a standard for creating and maintaining user accounts and share this with users.
  • Limit ways in which a user can connect to the system.
  • Keep accurate logs of each individual users activity, specifically connection duration, time and location.
  • Check for irregular user activity such as failed attempts to gain access to files they shouldn’t be accessing.

Data Storage and Security-  Protecting your important data, and ensuring that backups are performing properly are important in network security.

  • Only make data that pertains to an employees specific role available to them.
  • If you have file systems available with a network sharing tool, examine the security of this tool.
  • Maintain a standard backup of your system and protect this data.  The most common way to backup is tape, however there are safer solutions available.
  • If you use a database, make sure the database is accessible only to authorized users.

Passwords-  Setting up a complex password is one of the easiest security measures, however it is also one of the most overlooked steps.

  • Require unique passwords that contain at least 6 characters as well as a combination of numbers and letters, both uppercase and lowercase.
  • Setup a password rotation and expiration.  You should never keep a password longer than a few months, especially your system password.
  • Do not write down passwords, store them, or send via email, keep them in memory alone.  Communicate this to everyone. 

System Administration-  Setting up your system properly is important, but you cannot leave it at that.   You have to regularly update and monitor your system to ensure everything is okay. 

  • Regularly browse your system, looking for vulnerabilities.
  • From time to time try to break into your own network.
  • Think of groups that may have a reason to break into  your network, and protect your company against them.
  • Keep all users up to date on techniques and security expectations of them.

Topics: Network Security, IT security

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