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Case Study

03.2020

Adoption of Smart Cities with a Practical Smart Building Implementation (magazine paper)

This is a short overview on Smart Cities and company’s IoT product deployment case study, which is based on the article “Adoption of Smart Cities with a Practical Smart Building Implementation“ [1] by Marcin Dryjański, Mateusz Buczkowski, Youssouf Ould-Cheikh-Mouhamedou, and Adrian Kliks which is a magazine article in IEEE Internet of Things Magazine.   Abstract [1] […]

01.2020

Wi-Fi issues: site-surveys and troubleshooting

Recently, we’ve been doing numerous site surveys and verification of Wi-Fi deployments in offices with more than 50APs per office in a managed setup (meaning that the APs are under the supervision of a wireless controller). In this post, I’d like to sketch an overview of the encountered issues and improvement suggestions.

01.2020

World SD-WAN Summit, Berlin 2019 – Recap

About month ago I attended the SD-WAN World Summit organized by Luxatia International in Berlin. Thanks to organizer i was invited as a speaker. My presentation took place in day 2 of the event and the title was “Changing User Experience. Customer WAN to SD-WAN transformation”

Author: Marcin Bialy
09.2019

How to adjust data to your needs in Elastic

Elastic Stack allows to use multiple data source. On the ingest-layer you can use Logstash, any of the Beats or custom app, which feeds Elasticsearch with the data through the API. Each of them can be customized or configured to some extent. In this blog post we will present how elastic can be configured to support data in format we want.

08.2019

Using Kibana for custom monitoring in dense Wi-Fi

We’ve built a high density and high capacity network. In order to properly operate such network, we designed a custom monitoring and analytics solution based on Elastic Stack and MQTTbeat receiving the measurements from all 494 IoT gateways (i.e. 494 Wi-Fi APs) through an MQTT broker. In this post I’m sheding some light on the different aspects of the solution and custom dashboards.

07.2019

Handling tickets with Kibana

There are multiple platforms that help you with handling tickets. If you are starting your business, you might simply reply to those emails directly via your mail client, but it quickly becomes too hard to follow and handle all the issues. We chose the tool, from the same vendor, we were already using for different purpose for easy integration. It was great for following threads, tagging and grouping issues, taking notes and automating responses. In this tool we had access to basic statistics like ticket count or time graph with incoming tickets, but we were interested in more advanced stats, which could give us more insight into what is going on. That’s why we decided to integrate that tool with already used by us Elastic Stack.

05.2019

IoT System: Monitoring and Management

IoT System consists of multiple devices and we expect each of them to work flawlessly. There are many reasons why the service might not work in such complex environment. Starting from physical damage of the device, power outage, up to network failure or software bug. Whatever the issue is, we want to be aware of it as soon as possible.

06.2017

Introducing new network meetup for wireless geeks in Poznan!

I have pleasure to announce a network meetup group in Poznan, called Network & Wireless Meetup. All interested in IP & Wireless Networking, Network Security and design are welcome to join, come, talk to our Network & Wireless group. We will talk about network and wireless fundamentals, real project use cases, review and analyse sophisticated […]

Author: Marcin Bialy
03.2017

VPN Remote Access with Multi Factor Authentication Experience – Case Study

I would like to share my experience with VPN Remote Access and Multi Factor Authentication with products from Cisco and Duo Security: Cisco Identity Services Engine 2.X, Cisco ASA 5500-X Anyconnect Secure Mobility Client (VPN client) MFA Cloud based services from Duo Security   Background of Multi Factor Authentication Multi Factor Authentication (MFA) is already quite well […]

Author: Grandmetric
 

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