Click here to close now.

Welcome!

Linux Authors: Carmen Gonzalez, Jason Bloomberg, AppDynamics Blog, Liz McMillan, Yeshim Deniz

Related Topics: Open Source, Linux

Open Source: Article

How To Design and Implement an Enterprise Open Source Security Architecture

Ensure Your IT Assets Are Available, Reliable, and Safe

Information security is a top priority for many companies. Protecting information from external threats such as hackers, viruses, and spam, as well as governmental regulation requirements (SOX, HIPAA, NISPOM, etc.), are driving IT purchases beyond ROI as C-level executives seek to assure shareholders (and themselves) that assets are secure within the company complex. Viewed as today's growth market, many software/hardware/service companies are creating offerings to mitigate perceived risk or actual liability.

The security environment within some organizations may be somewhat lax - "safe" behind the routers, IDS, and firewalls. In this article, I'll discuss how to create a security architecture, including analysis, planning and prioritizing security needs, and I'll examine the following topics:

  • Understanding security architecture
  • Balancing threats, costs, and the value of secured assets
  • Creating an architecture that fits the business framework
  • A layered examination of security, including network access, application access, external access, and physical access
In addition, references are provided at the end of the article with links to useful information.

Understanding Security
Security architecture differs from other kinds of security in that it addresses requirements from a high-level perspective as opposed to a tactical perspective. When possible, you should understand your company's security requirements before specific security issues are implemented. It's as important to know your own assets, where they are deployed, and what they're worth to your company, as it is to know what threats they are facing.

Security architecture can become very complex. By looking at security from multiple perspectives, including external access and physical security, network security, application and computer-specific security, you'll be looking from the outside in as well as from the inside out. These perspectives must also be balanced against other business requirements, financial and otherwise. Whatever model or security architecture you use, you are trying to ensure that your assets are available, reliable, and safe. Consider Figure 1.

The confidentiality perspective prevents your competition from siphoning off the cream of your company's products. The integrity perspective protects your information from unauthorized modification with verifiable, auditable access records. The availability perspective ensures that information within your business is accessible at all times. Your security architecture should focus on delivering these three attributes. Securing your information while keeping the click-and-mortar business open and vibrant is a very challenging task.

Dollars and Sense
When planning your security architecture, you are governed by overriding factors including time and money. In some cases, spending one makes more sense than the other. For example, a small company pushing their first product into the marketplace may require a security architecture overridden by cost above all (if the product doesn't make it to market, having a safe infrastructure doesn't matter). They may have to phase in security measures over time. At the other end, non-compliance with a regulatory security standard could cost a company a large account, or even threaten its ability to remain open for business. (See Figure 2)

It's also important to understand that the strategic view of your enterprise security architecture is a view of where you want to be. Few companies can afford to start from scratch with regard to implementing security. For example, your company may currently address physical access with Intrusion Detection Systems, gateways, and firewalls. These are integral elements of a good architecture, but alone they may not adequately address the risk to your company.

To create the appropriate architecture for your business, you need to strike a balance between the value of assets being protected and the cost of the protection. As a general guideline, protect the highest valued assets most stringently. This may be your source code and the servers it resides in, or perhaps the marketing info including the initial public offering data. Tape backup into an offsite location may provide adequate protection for some businesses (based on the cost/value analysis), while others may require biometric access to the clean rooms where prototyping is occurring. Secure higher-priority assets first, and keep moving forward with planned steps to reach a secure destination.

Create a Security Architecture That Fits the Business Framework
As we have seen, there are multiple perspectives in a security architecture. Many models exist that may match one, some, or all of the important perspectives. There are many framework examples, including the Lattice, the Federal Enterprise Architecture Framework, the Clark-Wilson or Biba models, and many other reference models (see the hyperlink section for reference links to these and other frameworks). In each case, the common goal is to create a balance between the business needs and the information systems that support them. Understanding what is important in relation to other things in your business helps you value both the assets and the corresponding protection you will afford them.

For example, Figure 3 is an X-Y graph that shows assets increasing in value (up the vertical axis), facing increasing risk over time (on the horizontal axis extending to the right).

This simplistic representation shows the most highly valued assets facing the least exposure to risk over time, descending in value to assets that can withstand increased exposure to risk over time. Whatever method you use, the value of assets in your enterprise needs to be determined. Revisit these models when you acquire additional assets so that their value is properly established and defended. In this way, there is an ongoing evaluation of what assets are present and their security needs within the business framework.

Network Security Architecture - It's Not Just Firewalls Anymore
As your customer community grows more sophisticated and begins to expect more protection from your products or services, the potential for accidental or intentional misuse or attack within your company grows as well. A majority of data loss in companies today occurs via credentialed accounts. Similarly, reliable and correct delivery of information on your LAN or WAN is no longer guaranteed via TCP/IP, with address spoofing and snooping available to anyone on your network, unless network security is active from the inside-out as well. Evaluate this short list of network security mechanisms as potential additions to your security plan:

More Stories By Richard Williams

Richard Williams is director of education for Symark Software in Agoura Hills, California. With over 20 years of experience in systems administration, architecture, and design, Richard oversees the development and delivery of Symark's University Training Program in providing customer support to global enterprise customers.

Comments (5) View Comments

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Most Recent Comments
Sumit 01/03/06 04:55:08 PM EST

How is article in anyway related to open source?

Information Storage & Security Journal News Desk 11/10/05 01:10:35 PM EST

Information security is a top priority for many companies. Protecting information from external threats such as hackers, viruses, and spam, as well as governmental regulation requirements (SOX, HIPAA, NISPOM, etc.), are driving IT purchases beyond ROI as C-level executives seek to assure shareholders (and themselves) that assets are secure within the company complex. Viewed as today's growth market, many software/hardware/service companies are creating offerings to mitigate perceived risk or actual liability.

Enterprise Open Source Magazine News Desk 11/10/05 11:40:49 AM EST

Designing and Implementing a Security Architecture. Information security is a top priority for many companies. Protecting information from external threats such as hackers, viruses, and spam, as well as governmental regulation requirements (SOX, HIPAA, NISPOM, etc.), are driving IT purchases beyond ROI as C-level executives seek to assure shareholders (and themselves) that assets are secure within the company complex. Viewed as today's growth market, many software/hardware/service companies are creating offerings to mitigate perceived risk or actual liability.

queZZtion 11/04/05 08:01:30 AM EST

{{{governmental regulation requirements (SOX, HIPAA, NISPOM, etc.)}}}

Are there any good online resources on these, on SoX for examle?

BadM 11/04/05 06:08:46 AM EST

}}} reliable and correct delivery of information on your LAN or WAN is no longer guaranteed via TCP/IP, with address spoofing and snooping available to anyone on your network {{{

How true. Sadly.

@ThingsExpo Stories
SYS-CON Events announced today that the "First Containers & Microservices Conference" will take place June 9-11, 2015, at the Javits Center in New York City. The “Second Containers & Microservices Conference” will take place November 3-5, 2015, at Santa Clara Convention Center, Santa Clara, CA. Containers and microservices have become topics of intense interest throughout the cloud developer and enterprise IT communities.
Buzzword alert: Microservices and IoT at a DevOps conference? What could possibly go wrong? In this Power Panel at DevOps Summit, moderated by Jason Bloomberg, the leading expert on architecting agility for the enterprise and president of Intellyx, panelists will peel away the buzz and discuss the important architectural principles behind implementing IoT solutions for the enterprise. As remote IoT devices and sensors become increasingly intelligent, they become part of our distributed cloud environment, and we must architect and code accordingly. At the very least, you'll have no problem fil...
IoT is still a vague buzzword for many people. In his session at @ThingsExpo, Mike Kavis, Vice President & Principal Cloud Architect at Cloud Technology Partners, discussed the business value of IoT that goes far beyond the general public's perception that IoT is all about wearables and home consumer services. He also discussed how IoT is perceived by investors and how venture capitalist access this space. Other topics discussed were barriers to success, what is new, what is old, and what the future may hold. Mike Kavis is Vice President & Principal Cloud Architect at Cloud Technology Pa...
Disruptive macro trends in technology are impacting and dramatically changing the "art of the possible" relative to supply chain management practices through the innovative use of IoT, cloud, machine learning and Big Data to enable connected ecosystems of engagement. Enterprise informatics can now move beyond point solutions that merely monitor the past and implement integrated enterprise fabrics that enable end-to-end supply chain visibility to improve customer service delivery and optimize supplier management. Learn about enterprise architecture strategies for designing connected systems tha...
There's Big Data, then there's really Big Data from the Internet of Things. IoT is evolving to include many data possibilities like new types of event, log and network data. The volumes are enormous, generating tens of billions of logs per day, which raise data challenges. Early IoT deployments are relying heavily on both the cloud and managed service providers to navigate these challenges. In her session at Big Data Expo®, Hannah Smalltree, Director at Treasure Data, discussed how IoT, Big Data and deployments are processing massive data volumes from wearables, utilities and other machines...
SYS-CON Events announced today that MetraTech, now part of Ericsson, has been named “Silver Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9–11, 2015, at the Javits Center in New York, NY. Ericsson is the driving force behind the Networked Society- a world leader in communications infrastructure, software and services. Some 40% of the world’s mobile traffic runs through networks Ericsson has supplied, serving more than 2.5 billion subscribers.
The 4th International Internet of @ThingsExpo, co-located with the 17th International Cloud Expo - to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA - announces that its Call for Papers is open. The Internet of Things (IoT) is the biggest idea since the creation of the Worldwide Web more than 20 years ago.
The 17th International Cloud Expo has announced that its Call for Papers is open. 17th International Cloud Expo, to be held November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, APM, APIs, Microservices, Security, Big Data, Internet of Things, DevOps and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportunity. Submit your speaking proposal today!
The recent trends like cloud computing, social, mobile and Internet of Things are forcing enterprises to modernize in order to compete in the competitive globalized markets. However, enterprises are approaching newer technologies with a more silo-ed way, gaining only sub optimal benefits. The Modern Enterprise model is presented as a newer way to think of enterprise IT, which takes a more holistic approach to embracing modern technologies.
Since 2008 and for the first time in history, more than half of humans live in urban areas, urging cities to become “smart.” Today, cities can leverage the wide availability of smartphones combined with new technologies such as Beacons or NFC to connect their urban furniture and environment to create citizen-first services that improve transportation, way-finding and information delivery. In her session at @ThingsExpo, Laetitia Gazel-Anthoine, CEO of Connecthings, will focus on successful use cases.
The explosion of connected devices / sensors is creating an ever-expanding set of new and valuable data. In parallel the emerging capability of Big Data technologies to store, access, analyze, and react to this data is producing changes in business models under the umbrella of the Internet of Things (IoT). In particular within the Insurance industry, IoT appears positioned to enable deep changes by altering relationships between insurers, distributors, and the insured. In his session at @ThingsExpo, Michael Sick, a Senior Manager and Big Data Architect within Ernst and Young's Financial Servi...
17th Cloud Expo, taking place Nov 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA, will feature technical sessions from a rock star conference faculty and the leading industry players in the world. Cloud computing is now being embraced by a majority of enterprises of all sizes. Yesterday's debate about public vs. private has transformed into the reality of hybrid cloud: a recent survey shows that 74% of enterprises have a hybrid cloud strategy. Meanwhile, 94% of enterprises are using some form of XaaS – software, platform, and infrastructure as a service.
One of the biggest impacts of the Internet of Things is and will continue to be on data; specifically data volume, management and usage. Companies are scrambling to adapt to this new and unpredictable data reality with legacy infrastructure that cannot handle the speed and volume of data. In his session at @ThingsExpo, Don DeLoach, CEO and president of Infobright, will discuss how companies need to rethink their data infrastructure to participate in the IoT, including: Data storage: Understanding the kinds of data: structured, unstructured, big/small? Analytics: What kinds and how responsiv...
The Workspace-as-a-Service (WaaS) market will grow to $6.4B by 2018. In his session at 16th Cloud Expo, Seth Bostock, CEO of IndependenceIT, will begin by walking the audience through the evolution of Workspace as-a-Service, where it is now vs. where it going. To look beyond the desktop we must understand exactly what WaaS is, who the users are, and where it is going in the future. IT departments, ISVs and service providers must look to workflow and automation capabilities to adapt to growing demand and the rapidly changing workspace model.
From telemedicine to smart cars, digital homes and industrial monitoring, the explosive growth of IoT has created exciting new business opportunities for real time calls and messaging. In his session at @ThingsExpo, Ivelin Ivanov, CEO and Co-Founder of Telestax, shared some of the new revenue sources that IoT created for Restcomm – the open source telephony platform from Telestax. Ivelin Ivanov is a technology entrepreneur who founded Mobicents, an Open Source VoIP Platform, to help create, deploy, and manage applications integrating voice, video and data. He is the co-founder of TeleStax, a...
The Internet of Things (IoT) promises to evolve the way the world does business; however, understanding how to apply it to your company can be a mystery. Most people struggle with understanding the potential business uses or tend to get caught up in the technology, resulting in solutions that fail to meet even minimum business goals. In his session at @ThingsExpo, Jesse Shiah, CEO / President / Co-Founder of AgilePoint Inc., showed what is needed to leverage the IoT to transform your business. He discussed opportunities and challenges ahead for the IoT from a market and technical point of vie...
Sensor-enabled things are becoming more commonplace, precursors to a larger and more complex framework that most consider the ultimate promise of the IoT: things connecting, interacting, sharing, storing, and over time perhaps learning and predicting based on habits, behaviors, location, preferences, purchases and more. In his session at @ThingsExpo, Tom Wesselman, Director of Communications Ecosystem Architecture at Plantronics, will examine the still nascent IoT as it is coalescing, including what it is today, what it might ultimately be, the role of wearable tech, and technology gaps stil...
Grow your business with enterprise wearable apps using SAP Platforms and Google Glass. SAP and Google just launched the SAP and Google Glass Challenge, an opportunity for you to innovate and develop the best Enterprise Wearable App using SAP Platforms and Google Glass and gain valuable market exposure. In his session at @ThingsExpo, Brian McPhail, Senior Director of Business Development, ISVs & Digital Commerce at SAP, outlined the timeline of the SAP Google Glass Challenge and the opportunity for developers, start-ups, and companies of all sizes to engage with SAP today.
DevOps tends to focus on the relationship between Dev and Ops, putting an emphasis on the ops and application infrastructure. But that’s changing with microservices architectures. In her session at DevOps Summit, Lori MacVittie, Evangelist for F5 Networks, will focus on how microservices are changing the underlying architectures needed to scale, secure and deliver applications based on highly distributed (micro) services and why that means an expansion into “the network” for DevOps.
The 3rd International @ThingsExpo, co-located with the 16th International Cloud Expo – to be held June 9-11, 2015, at the Javits Center in New York City, NY – is now accepting Hackathon proposals. Hackathon sponsorship benefits include general brand exposure and increasing engagement with the developer ecosystem. At Cloud Expo 2014 Silicon Valley, IBM held the Bluemix Developer Playground on November 5 and ElasticBox held the DevOps Hackathon on November 6. Both events took place on the expo floor. The Bluemix Developer Playground, for developers of all levels, highlighted the ease of use of...