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Jarek Hartman

Jarek Hartman

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Jarek Hartman

How to enable R environment in Golden Cheetah on Mac?

Jarek 2020-08-252020-08-25 Telco and IT No Comments

Somehow I couldn’t find a complete guide how to install R and configure it properly in Golden Cheetah (I’m using v3.5).

There is a good guide how to work with R in GC, but actually – no description how to …

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Wireshark LUA plugin

Jarek 2020-02-162020-02-16 Telco and IT No Comments

This is an example of a LUA plugin for Wireshark which goes through the packets and generates a statistic.

In my case, I was looking for Diameter Charging-Control stats around Reporting-Reason Valdity-Time.

The project is hosted in GitHub.

Pre-requisites

…
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Withings to Garmin tool going beyond! TrainerRoad syncing

Jarek 2020-01-302023-08-26 Cycling, Gadgets & hobbies No Comments

As I’m user of cycling training platform TrainerRoad, the tool has been expanded to support weight synchronisation to TrainerRoad profile.

To use, specify Trainer Road user and passwords as shown below:

Usage

Usage: sync.py [options]

Options:
  -h, --help            show 
…
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Validator

Jarek 2019-10-21 No Comments

Narrow down issues with Host validation (InetAddress.isReachable())

 

[rms@tr005buece12 tmp]$ ./test.sh tr005buwls11.ddc.teliasonera.net
Testing tr005buwls11.ddc.teliasonera.net
OK
 
[rms@tr005buwls11 ~]$ sudo tcpdump -nn -v -i eth0 host tr005buece12 and port not 22
tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
…
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OUI issue NGINST-64002: Error occurred in validation of: “Host Name”

Jarek 2019-10-212023-02-07 Telco and IT No Comments

When installing an Oracle application using OUI (Oracle Universal Installer) sometimes it verifies if a given host is reachable. 

Unfortunately, in my case, it was always failing:

All this despite the host was perfectly reachable using Ping:

So what was …

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