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May 6, 2019 By OSR

Step Up Your Spring Cleaning with A Network Assessment (Part 2)

Step Up Your Spring Cleaning with A Network Assessment (Part 2)

In part one of our Network Assessment piece, we showed you how to focus your spring-cleaning efforts on creating a network inventory and examining your IT infrastructure. In section two, we’ll look to audit three more critical aspects of your network: performance, security, and management.

Analyze Performance

Having audited your inventory and infrastructure, you should now have a clearer picture of your network. Now you’ll want to test its performance by analyzing key metrics to help define the overall quality of your service.

To compile this data, you’ll need a network performance measurement tool. Your IT partner should be able to provide this, or you can DIY with tools such as Wireshark or iPerf, which can provide powerful data packet capture analytics with diagnostic capabilities.

Broadly speaking, these tools are split into two categories: Passive and Active. Passive tools limit disruptions by avoiding introducing additional network traffic. Active tools inject data into your network to monitor its path to a target destination. It’s important to know the difference because choosing an active tool will require clever scheduling so as not to interrupt existing network traffic.

When testing, you’ll be looking to measure these key metrics:

  • Latency – the amount of time it takes for data to travel from a defined location to its chosen destination.
  • Bandwidth – the amount of data that can be transmitted over a specific period of time (usually measured in bits per second).
  • Packet Loss – the number of data packets that fail to transmit from one destination to another.
  • Jitter – related to latency, jitter quantifies the variations in time delay when packets are sent over the network.
  • Throughput – also related to latency, throughput is the number of data packets that can be delivered in a predetermined time frame.

With these measurements in hand, you will have a set of hard data to test all your variables against to help improve your network performance going forward.

Solidify Your Security

Internal networks are notoriously open and contain many vulnerabilities, most commonly due to a lack of encryption or authentication controls. In your assessment, you’ll want to do a thorough inspection for weaknesses by monitoring network traffic for any exposed services and testing device and control configurations.

It’s also time to scan every port in your network. Unprotected ports in your network are like unlocked doors in your home, and can be secured by implementing firewalls, SSH public key authentications, and keeping the services you use constantly up-to-date.

Don’t forget to take physical security risks into account as well. Fires, floods, or stolen equipment can be just as damaging as compromised passwords or malicious viruses.

Evaluate Management

The final detail you’ll need to examine is how your network is being managed. One look at the inventory list you made when you started, and it’s easy to see why this can be a daunting task. Developing and communicating coherent company policies surrounding network access and usage are paramount to keeping your systems clean and under control. Monitor network usage heavily during your assessment to figure out who’s using what and when.

If you haven’t already, consider implementing a Network Management System (NMS) like OpenNMS. An NMS is a set of applications that assist your network administrators by letting them manage software and hardware components individually from a central workstation. Using one can be of great assistance in streamlining the very complex task of day-to-day network management.

Assess Whether You Need Assistance

If you’re looking to make your network assessment as thorough as possible, a Managed Service Provider (MSP) like Longleaf can also help. We’ll analyze your data to properly identify holes in your security systems, expertly optimize your infrastructure, and even help manage your network for you. Contact Longleaf to make your network the cleanest aspect of your office.

Filed Under: Uncategorized Tagged With: bandwidth, cybersecurity, jitter, latency, network, network assessment, network management system, network management tool, packet loss, throughput

April 5, 2019 By OSR

Step Up Your Spring Cleaning with A Network Assessment (Part 1)

Step Up Your Spring Cleaning with A Network Assessment (Part 1)

Spring has sprung, and you’re already busy clearing out all the clutter that accumulated during the winter months. But shiny floors and polished tennis trophies won’t keep you in business. A reliable and robust network will. When your network is a mess, employees waste time troubleshooting, customers disengage, and revenue is lost. To avoid this, in addition to busting out the broomsticks, it’s imperative that you set aside some time this spring to complete a full network assessment.

A network assessment is a thorough evaluation of your IT systems that gives you a comprehensive overview of every weakness and opportunity for improvement. In this two-part “spring cleaning” article, we’ll detail some of the simple steps you can take to get a better sense of where your network stands today.

Define and Prepare

Step one to assessing your network is preparing properly, so you save time and know what your goals are. Because if you don’t know what you’re looking for, how can you find it? Begin by defining the scope of your evaluation and decide how long it will take, who will take part, and what aspects you want to analyze. Next, make sure key members have the usernames and passwords needed to edit access rules accordingly so authorization issues won’t slow down the process. Once you’ve defined the scope of your inquiry and provided access to your chosen team, you’ll be ready to begin. For this article we’ll define our primary objectives as surveying these five key aspects of the network: inventory, infrastructure, performance, security, and management.

Assess Your Inventory

Like an old attic, your network is probably home to more than a few items you forgot existed. This is why it’s important to start digging through the clutter and make a detailed inventory of all of the devices, network appliances, software, and hardware that are currently in use (or not in use) across your network. The most effective way to do this is to create a simple spreadsheet with details such as:

  • Name
  • Type of Device
  • IP Address
  • Manufacturer
  • Make
  • Model/Model Number
  • Serial Number
  • Operating System
  • Physical Location

As tedious as it may seem, this is no time to slouch. You’ll want to get up on your feet, walk around, and take a look at everything in the office. Note every laptop, printer, server, router, etc. It’s time to get a clear picture of what you’re using and how it’s being utilized. This is also a good time to take some photos to file away so that if you ever need to file an insurance claim, you’ll have good documentation.

However, as a business owner, you may find that taking inventory of your all your office devices falls to the bottom of your priority list. In that case, partnering with an MSP might be a more practical option for your business. As an MSP, we provide Inventory Management, so you will never have to worry about every device your employees are using, or if they are updating their programs as often as they should. Instead of the tedious “spreadsheet” approach, our Inventory Management is automated through our Remote Monitoring and Management (RMM) tools, which automatically generates your inventory for you.

Test Your Infrastructure

Now that you’ve figured out what you own, it’s time to ask yourself: Do these devices work well together? Streamlining infrastructure is the crucial next step to achieving network efficiency. Similar to our inventory process we’ll want a dedicated document containing all our findings. A network map is the most useful tool for examining the overall design of network systems. If you’re particularly talented, a hand-drawn diagram can suffice, but a network mapping software solution like Visio might be more practical. MSPs often use Visio themselves to create clean network maps, but may also have monitoring software that automates this process for their clients. Longleaf, for example, routinely auto-discovers devices and creates live diagrams in real-time to make sure our clients get the most thorough sense of how their systems are working together to identify flaws and make improvements, as well as quickly identify and remove unauthorized devices that shouldn’t be on your network.

You’re halfway there! Stay tuned for part two where we’ll cover the best ways to assess network performance, strengthen your cybersecurity, and stay on top of these various aspects post-assessment. Already overwhelmed by the intricacies involved in a full network assessment? Consider contacting Longleaf. A top-of-the-line Managed Service Provider, Longleaf can expertly survey your entire system in a hurry to get your network in top shape.

Filed Under: Uncategorized Tagged With: cyber attack, cybersecurity, device, infrastructure, inventory, management, network assessment, performance, Productivity, security

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