AlgoBuzz Blog

Everything you ever wanted to know about security policy management, and much more.

Generic filters
Exact matches only
Search in title
Search in content
Search in excerpt
Filter by Custom Post Type

Network Security Tip of the Week [8]


This week’s network security tip focuses on the importance of documenting firewall rules. Ramani, an IT Manager in India, says that a best practice is to “document all firewall rules with well-defined comments for each rule. Though it may look insignificant in day-to-day operations, it is a real lifesaver in times of crisis.”

Others agree on the importance of documenting firewall rules and provide specific use cases as to why it is a best practice:

  • Luis, a security architect from Columbia, suggests that “When you create temporary rules, make sure to add a comment with the expiration date, and regularly review expired rules.”
  • Reinhard, a Support Director from Austria says “Group rules that belong together. Use the same naming on your firewall as you have on your clients/servers. Try to create groups of hosts, networks or services when possible and use the groups instead of adding single objects.”
  •  Markus, a consultant from Germany says “Use the comment field in rules and objects for enhanced functionality. For example, you can place a validity date for each object to make an easy review of the object base or make a connection to your CMDB by defining a CI reference in the object or rule.”

Thank you to all those who continue to provide us with these excellent network security tips. Have a tip? Share them with us at [email protected], DM us at @AlgoSec or comment directly on our blog.

Subscribe to Blog

Receive notifications of new posts by email.