Natalie Timms

Upcoming Events

Where the Cloud Touches Down: Simplifying Data Center Infrastructure Management

Thursday, July 25, 2013
10:00 AM PT/1:00 PM ET

In most data centers, DCIM rests on a shaky foundation of manual record keeping and scattered documentation. OpManager replaces data center documentation with a single repository for data, QRCodes for asset tracking, accurate 3D mapping of asset locations, and a configuration management database (CMDB). In this webcast, sponsored by ManageEngine, you will see how a real-world datacenter mapping stored in racktables gets imported into OpManager, which then provides a 3D visualization of where assets actually are. You'll also see how the QR Code generator helps you make the link between real assets and the monitoring world, and how the layered CMDB provides a single point of view for all your configuration data.

Register Now!

A Network Computing Webinar:
SDN First Steps

Thursday, August 8, 2013
11:00 AM PT / 2:00 PM ET

This webinar will help attendees understand the overall concept of SDN and its benefits, describe the different conceptual approaches to SDN, and examine the various technologies, both proprietary and open source, that are emerging. It will also help users decide whether SDN makes sense in their environment, and outline the first steps IT can take for testing SDN technologies.

Register Now!

More Events »

Subscribe to Newsletter

  • Keep up with all of the latest news and analysis on the fast-moving IT industry with Network Computing newsletters.
Sign Up

See more from this blogger

Secure Networks: How To Develop An Information Security Policy

Security is often referred to as an overlay to a network topology. While security methods provide protection for access and infrastructure, these methods should be the result of a carefully defined security policy. An effective security policy integrates well-known protection methods into a network in a way that meets both security standards and the goals of the entity being secured.

An information security policy builds the foundation for a secure network, but it must be seen as valuable to an entity. The selling point for a security policy is showing how it maps to key business drivers such as:

• Improved efficiency through streamlined security processes that reduce operational expenses in terms of time, money and personnel.

• Increased productivity through well-defined and applied policies that correctly balance the level of access with perceived risk.

• Better agility, allowing for efficiency with respect to the implementation of compliance and regulatory objectives, migration strategies and risk mitigation techniques.

The deployment of network security features is the result of the approved security policy. Here are some important considerations that should be taken into account in security policy development:

• Remember that each entity will have its own objectives. To win support, a security policy's benefits must be apparent to each specific entity.

• It's critical to understand what you are trying to secure and why; if you don’t understand the underlying network, how can you secure it? Network addressing schemes, choice of routing protocol, and correct mapping of physical connections, such as switch ports to logical configurations, are basic components that must be understood.

• Clearly define network objectives in terms of business requirements and goals, for example: Performance and availability, including SLA requirements, capacity and potential growth, and efficient bandwidth usage; audit and logging requirements; monitoring/troubleshooting, including cost of downtime and acquisition of management tools; and provisioning model (for example, consider the need for multiple levels of control and change management processes.)

• Identify the type and levels of security required. Consider regulatory compliance requirements such as SOX and HIPAA.

[Read why information security pros should take the time to teach their friends and neighbors about security best practices in Be The Security Good Samaritan."]

• Identify applicable network best practices, both general and industry specific, such as IETF RFCs (1918, 3330, 2827, 3704), ISO frameworks (27001, 27002), and COBIT IT security standards.

• Integrate tools and technologies that can be mapped to a business objective. Areas to consider include authentication and encryption requirements for confidentiality, bandwidth management, application-level security, and multi-vendor versus single-vendor designs.

While security policy may be seen as the blueprint for applying protection over the network topology, in actuality it facilitates a layered view, allowing security to be integrated into the network by identifying key areas of a network design such as:

• Network devices, their placement, roles and capabilities.

• Software and hardware requirements for feature support, capacity, maintainability and migration strategies.

• Logical views mapped to physical plans.

• Addressing and identifiers used for identification of policy elements.

• Routing and forwarding methods for efficiency and applicability.

I plan to drill down into these areas in terms of secure design in upcoming blog posts.

Related Reading

More Insights

Network Computing encourages readers to engage in spirited, healthy debate, including taking us to task. However, Network Computing moderates all comments posted to our site, and reserves the right to modify or remove any content that it determines to be derogatory, offensive, inflammatory, vulgar, irrelevant/off-topic, racist or obvious marketing/SPAM. Network Computing further reserves the right to disable the profile of any commenter participating in said activities.

Disqus Tips To upload an avatar photo, first complete your Disqus profile. | Please read our commenting policy.
Vendor Comparisons
Network Computing’s Vendor Comparisons provide extensive details on products and services, including downloadable feature matrices. Our categories include:

Research and Reports

Network Computing: April 2013

TechWeb Careers