372 posts categorized "Tony Fortunato" Feed

NetBeez Quickstart (by Tony Fortunato)

There is no shortage of utilities, applications and full blown network troubleshooting systems out there.  Some are free, and some cost a pretty penny.  Spoiler alert, they ALL have their place in the analysts’ toolbox.

When I present or work with a client, I explain the tools only accounts to 50% of the equation to successfully fixing a problem.  The other 50% is split between knowledge and practice. Think about it for a moment, anyone can buy a pocket knife, but only a few of us can carve something recognizable out of a block of wood.

NetBeez provides a very helpful free version of its product so you can get a feel of what it can do and where it might fit into your specific environment.  In the past I would have to figure out how to schedule, report results and then compile them for a report. Any one of those challenges would immediately turn off most analysts since we have plenty on our plates already.

Look at good old ping for a moment. Sure anyone can ping something

I tested the free virtual appliance, which you can find here https://netbeez.net/product/plans/netbeez-free. The free version supports; one agent, three targets, 1 user, Cloud server account, SMTP alerts, 1 and week data storage which is plenty for me and some of my clients who tried it.

Setup is pretty simple, go to NetBeez and create a cloud account and download their ova file. I used VMWARE workstation with no issues.

Some of the measurements that I tested are:

  • PING, Packet Loss, Round-Trip Time,
  • TCP-based PING test, Round-Trip Time, Packet Loss, Custom port numbers

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LMTV LIVE | General Data Protection Regulations

Join Tim, Tony October 4th when we’ll speak with Steve Brown, Director of Solutions Marketing, at Viavi Solutions about upcoming EU privacy and security regulations that will any organization that does business  in Europe. We’ll outline the impact of EU General Data Protection Regulations (GDPR) regulations on  network and security teams, clarify the global nature of GDPR regulations, and outline solutions and strategies for ensuring compliance.

When GDPR goes into effect on May 28, 2018, any organization that operates in, or does business in the EU will have just 72 hours to report detected breaches concerning personal information to relevant authorities and impacted parties. In addition to the LMTV discussion, resources can be found at: www.viavisolutions.com/gdpr

 

 

 


Wireshark Dropped Packet Counter (by Tony Fortunato)

I'm keeping this one nice and short.  shorter than my regular short posts  ;)

For those of you who read my material regularly, I’m sure you will remember me referring to ‘baselines’ and ‘tool calibration’ exercises. 

The point is for you to take a closer look at your tools or applications and understand how they behave and in some cases what changes version changes may bring.

In this specific example I was working with Wireshark and noticed the ‘dropped’ packet counter is missing from the status bar and found it elsewhere.

 

 

 

 

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Troubleshooting SMB Connection Issue Using Wireshark (by Tony Fortunato)

In this video I walk you through how i worked my way through a Microsoft connectivity problem using Wireshark.

The main point of the video is to pay attention to the methodology where i document the issue, apply a change and re-measure.

Just some text from the slides;

"The problem is with a device running Windows 7 that is configured with some shares to its local drives like a storage server.Every so often no one can connect to the shares, Android users just see a spinning/processing icon and windows users get a variety of connection error messages. The end result is always the same, no connection.

The only solution is to reboot the Windows 7 device and things have gotten so bad that now they have a scheduled script that reboots the computer daily.I asked them to capture some packets from their computer when it happens again.

By noon I had a capture."

 

 

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How To Rename Your Network Interfaces In Windows (by Tony Fortunato)

From ipconfig to Wireshark, there are many situations where you find yourself referencing your network interfaces. I find it annoying and confusing when I see many Ethernet Adapter’s or Local Area Adapters listed on my screen.

This can be a major issue if you are not physically close to a computer that you have set up as a remote probe or capture agent. Some people I spoke to about fixing this issue reply that they don’t know anything about hacking the registry and worry that it may break something on their computer.

In this video I show you how to quickly and easily fix this issue so there is just one less thing to make your job difficult.

https://www.youtube.com/watch?v=N7fIrKKYx4g

 

 

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Wireshark’s new tool – Transum (by Tony Fortunato)

I’ve been playing around with TRASUM for a year or so and got excited when it was announced that it is now included with the current Wireshark build. No more downloading, putting the files in the correct folder, etc..

Transum is a pretty helpful addon since it provides protocol various statistics in your trace file.

In the video below I provide a quick rundown of how to enable it, configure and use it. Once you get playing with it, you will see its immediate benefit.

Here’s the two links I reference in the video to make life a bit easier for you.

Transum Tribelab link:

https://community.tribelab.com/course/view.php?id=9

Sharkfest presentation:

https://sharkfest.wireshark.org/assets/presentations15/33.pdf

 

 

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