I often use Wireshark as my go to packet analyzer. I like it but I feel like I always forget what the display filters are. So I always find myself searching them online over and over again. So I have decided to create a reference sheet I could store and share on the blog.
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Feel free to download and use the reference sheet as much as you want. I have voluntarily left some blank spaces so we can make it better all together. So don't hesitate to share your feedbacks with me.

​Click on the image to open the PDF version:

To wrap up this article, I might as well share with you some tips I use on "my Wireshark":

• Use of colours: I added the Metageek Eye P.A. colours to my Wireshark. It helps breaking apart 802.11 frames. Follow this link to do it on yours: Metageek Eye P.A. colours in Wireshark
• Use of additional columns: I added some 802.11 related columns to the default setup including "Signal Strength", "Data Rate", "Channel Used" and "MCS Index")

Here is how it looks:

This is a quick post sharing a technique that I use when I need to label AP location on ceilings while performing a site survey. I don't really like using stepladder as they are not convenient to carry around. They also draw a lot of attention and can be too big, disrupting the customer environment.

When I am performing an AP-on-a-stick survey, I use a paint pole in order to mount a temporary AP. It is light and convenient. Here is the one I use: Mr. Long Arm 3212 Pro-Pole Extension Pole, 6 to 12 feet.

So I use the same pole to label ceilings for future AP's location. Here is how I do it in 8 steps:

Here you go guys. It takes a little bit of practice to master the act but it is not complicated at all. If you are having a hard time doing step 8, try twisting the pole a little bit and it should do the job.

Hopefully, this will be helpful for you as well.

Cheers'


written by François Vergès

When I was a kid, one of my teacher was always telling us "There is no problem, there are only solutions". I think he wanted us to stop complaining about our so called problems.

This quote was originally used first by a french writer named André Gide:

Here is the original version in french:

Today, this quote is better known taken from John Lennon's song "Watching The Wheels":

The idea behind this sentence is to turn the word problem, which seems to be something negative at first, into something positive. This way, we feel more engaged in the process of solving the actual problem.

The ugly fact of having a problem evolves in a challenge to find the solution. The word problem becomes something you are excited about.

I really started to see the importance of seeing the word "problem" as something positive when I started to work as an Engineer. Indeed, working as an Engineer you are facing a lot of problems. You job is basically to find a way to resolve complex problematic/problems. So if you see the word "problem" as something negative, you life becomes very miserable and you don't feel like going to work.

Before starting my first job, I wanted to avoid problems and focus on other tasks not involving problem solving. Ironically I started to work as a support Network Engineer; and I started finding solutions. Then I met other Engineers with a lot more experience than me. They were really good at their job and they were still solving problems and finding solutions. Learning from them, I realized that working on problems was the best way to get better at your job.

I quickly changed my state of mind and saw any problem that I was facing like an opportunity. For me it became a challenge I wanted to master. It made my job much more interesting.

With time, I have found that you can learn a lot while solving a problem. The fact of finding the solution also makes you feel good. The harder it is, the happier you are going to be!

I have also found that if you solve problems in a positive way, you will become more willing to help other people solving their problems.

All of this worked out for my first job but it also works in everything that you do in your life. So please, embrace any problems and turn them around into an opportunity. The outcome will be positive for you. It will also make your life better and less miserable ;)!

Cheers'
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written by François Vergès