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During this Blockchain overview webinar we will discuss what blockchain is, how it can provide value, and how it is currently being used by organizations around the world to effect transformative organizational change. View the slide deck>  

Learn more about the Blended Live delivery format from Global Knowledge.

The process of learning how to subnet IP addresses begins with understanding binary numbers and decimal conversions along with the basic structure of IPv4 addresses. This paper focuses on the mathematics of binary numbering and IP address structure.

Every data center has unique hardware and software requirements that can pose significant management challenges to IT. Cloud utilization, virtualization, mobile device management, app development, security, and storage networking represent just a few of the management challenges facing IT today. Add to that the responsibility of providing the infrastructure for processing an exponential increase in data and making it available to an increasingly mobile workforce on a daily basis.

As I’ve stated before, I like Border Gateway Protocol (BGP). I think it’s an interesting protocol, and yes — it’s complicated, but I guess that part of why I like it. There are a lot of knobs to tweak in BGP, maybe too many, but that’s another post. Anyway, we are now running BGP version 4 and it has had extensions written that support more than just IPv4 unicast routing. We now have IPv4 multicast, IPv6 unicast and multicast, VPNv4, VPNv6, and a few others.

This webinar will look at Border Gateway Protocol and explore why we have the protocol; how its involved and how it works. We will look at how and where BGP is used in today’s networks and Internet. We will look at the basics of configuring it and some not so basic configurations.  

In this article, we discuss how to achieve that optimal security approach in the data center with Cisco Application Centric Architecture, or ACI.

In reviewing the list of best-paying jobs in IT, you’ll see some areas you might expect like cloud computing and other areas you probably didn’t, like business technology or enterprise infrastructure management. The top 10 functional areas are based on the 2016 IT Skills and Salary Survey conducted by Global Knowledge in October 2015. Note that all references to “average” represent the mean, not the median or other statistical measures.

For smaller companies, configuring a dial plan to account for variations in dialed numbers is often not a problem. However, companies that are larger and more global in nature encounter a number of issues when designing their dial plan approach.

Projects are a social endeavor. Traditional project management approaches have shied away from the social advantages a more agile project environment brings. By nature, we are storytelling, pattern seeking and social people. We need colocation to shine truly in a project environment.

In the fourth of his five-part series, Eric Strause explores the hardware and application benefits inherent in a cloud-based architecture.

Diane Teare, Global Knowledge's Cisco Course Director, discusses the advantages to taking our CCNA Boot Camp.

In this post I’ll focus on a topic that’s mentioned in the Cisco FIREWALL training class but isn’t emphasized there or in the online Cisco ASA documentation. When configuring failover on a pair of ASA security appliances, a situation can arise in which network disruption occurs due to the secondary ASA in a failover pair becoming active first and then the primary comes online second. Both the documentation and the courseware point out that this causes the secondary (and active ASA) to swap its interface MAC addresses with those of the primary. Being naturally skeptical about this behavior, I decided to investigate. The rest of this post illustrates my confirmation of this phenomenon.

The OSI model is a conceptual tool used to discuss and describe network functions. The use of a standard reference model is essential to communicating ideas as well as creating new technologies. It is a good idea to be familiar with the OSI model, the features assigned to each layer, and examples of common protocols or technologies associated with the OSI layers.

RIP is a protocol that is used for routing IP networks. It was designed in the early 1980’s for communication between gateways (computers with two NIC’s). It is the oldest routing protocol used by the network industry and is considered by many to be inefficient or bo...

Cisco Switches and Routers running the Internet Operating System (IOS) have many things in common. Configuring these devices of course, is a skill that is sharpened the more you touch the device. During this post, our discussion will primarily focus on the basic comm...

Understand how password length and complexity can make your passwords easy to guess or virtually impossible to bypass.

The Bash shell is a powerful tool for managing Linux servers. This video offers a number of tips and tricks for using Bash to help make working on the Linux command-line easier and faster. It explores time saving tools like tab completion, command history, and brace expasion as well as how to combine commands together to create powerful new tools using piping.

Learn about all of your options before choosing the path that works for our organization. Here we look at three of the common metrics questions and how ITIL® offers a balanced view for solving them. 

Where the Azure Administrator is seen as a spider in the web of Microsoft cloud services is the Azure Architect playing the role of a generalist. They hold the umbrella of Azure Administration, Azure Development and Devops processes. Therefore they need to have advanced experience and knowledge of IT operations, including networking, virtualization, identity, security, business continuity, disaster recovery, data platforms, and governance. And a professional in this role should manage how decisions in each area affect an overall solution. Every organisation with some cloud ambitions should have at least one of these Architects in their teams.

AWS Summits are free online and in-person events that unite the cloud computing community to connect, collaborate, and learn about AWS.

This white paper explores the native AWS storage solutions, enabling you to deliver applications in the cloud in the most efficient, cost-effective, and secure manner. In terms of storage, it's important to understand the characteristics of each AWS storage option so that you can implement one or more AWS storage services to meet your needs. Often, you'll find that utilizing multiple storage options together will give you the best outcomes.

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You’ll be hearing a lot about AWS in Canada in 2017 as Canadian organizations are evaluating their options for moving to the cloud. Now is the time to get up to speed and find out what you and your organization need to know.

If you’ve been wondering what are some good IT pranks for April Fools’ Day—or any other time of the year—this is the post for you. Whether you’re an IT pro with decades of experience or a noob who is about to learn that holding CTRL+SHIF...

Ask any executive today about digital transformation and they’ll likely tell you about their organization’s plans to integrate cutting-edge technologies. 

As is frequently the case these days, I get a brainstorm for an article during a Cisco Security training class I conduct. This summer I taught the Securing Networks with ASA Fundamentals class, which concentrates heavily on the Adaptive Security Device Manager (ASDM)...

As is sometimes the case, the idea for this article originated with a student question I received during one of the Securing Networks with ASA Fundamentals classes I have taught this summer. The course material mentions a simple scenario whereby IP Telephony traffic...

As any network administrator will tell you, the ASA Security appliance (as well as its forerunner, the PIX) are capable of generating massive amounts of log messages, especially when the firewall/security appliance is set to log messages at debug level to the syslog...

I attended a meeting this week with a customer of mine and a potential new vendor. The new vendor was there to pitch his configuration and setup service offerings for a specific ITSM toolset. My customer has already had one bad experience with an ITSM tool configuration vendor who promised one thing and delivered much less. He ended up with a tool that’s minimally used and not configured to match his business needs. He’s looking for a vendor that can understand his business needs and priorities and quickly help him get his tool configured and working in a short time frame. Then the topic of standard changes came up. My customer asked for examples of standard changes. The vendor responded, “Server reboots are an example of standard changes.”

If you want to stay relevant as an IT professional, you have two choices: evolve your current skills or make a big change.

With Microsoft SQL Server 2016, you can distribute your data to the cloud using the Stretch Database feature to improve local access while allowing cloud access to large amounts of historical data. You can also provide transparent end-to-end security using Always Encrypted technology and track changes automatically through temporal data. Download this white paper to learn why these features and more make SQL Server 2016 Microsoft's most important release to date.

The tools described in this white paper are essential PM tools. Tools that will best be used, regardless of the project, are the WBS, communication model, and the precedence diagram. The other tools will be needed depending on the project.

Constant change in the technology landscape has been mirrored by the steady evolution of information security. The current information system environment is increasingly complex, comprising storage, servers, LANs/WANs, workstations, Unified Communications, Intranet, and Internet connections.

I recently was presented with the challenge of logging ALL of the pertinent connection, disconnection, and termination messages associated with the Cisco SSL AnyConnect client without overwhelming the syslog capture display with extraneous messages. This blog will br...

For those that want to take their first steps towards Ansible adoption, Red Hat Training has developed several courses to teach you better ways to automate administrative tasks and use Red Hat Ansible Engine effectively, as well as how to leverage advanced features of Ansible to perform more complex tasks. This webinar will highlight the benefits to using Ansible to automate tasks across a variety of Red Hat Enterprise Linux, Windows, cloud, and networking devices. View the slide deck>>