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After a longer break, I managed to get back to my small visualization experiment from last time, and improve it a little. Firstly, the NETCONF interface was switched for a […]
[mini-update] Network Topology Visualization #2 – Using SNMP as data source and enhanced visuals

After a longer break, I managed to get back to my small visualization experiment from last time, and improve it a little. Firstly, the NETCONF interface was switched for a […]

Ok, first let’s get one thing clear. This is an educational project for me learning some computer vision algorithms (I want to make an insect identification system to protect a […]
Autopilot for Elite Dangerous using OpenCV and thoughts on CV enabled bots in visual-to-keyboard loop

Ok, first let’s get one thing clear. This is an educational project for me learning some computer vision algorithms (I want to make an insect identification system to protect a […]

Ok, this is a continuation of two streams of articles here, first my recent NETCONF tutorial here, and secondly my very old project (back then in Java) of visualization of […]
Network Topology Visualization – Example of Using LLDP Neighborships, NETCONF and little Python/Javascript

Ok, this is a continuation of two streams of articles here, first my recent NETCONF tutorial here, and secondly my very old project (back then in Java) of visualization of […]

So let’s learn about NETCONF, but first a bit of history and perspective. Everyone in networking business at least once heard about SNMP (Simple Network Management Protocol), which is the […]
HP Networking/Comware NETCONF interface quick tutorial (using python’s ncclient and pyhpecw7)

So let’s learn about NETCONF, but first a bit of history and perspective. Everyone in networking business at least once heard about SNMP (Simple Network Management Protocol), which is the […]

After working with Mikrotik / RouterBoard routers for a long time, I recently needed to replace an aging old wifi router at my parents and the recent brand of very […]
[minipost] Protecting SSH on Mikrotik with 3-strike SSH ban using only firewall rules

After working with Mikrotik / RouterBoard routers for a long time, I recently needed to replace an aging old wifi router at my parents and the recent brand of very […]

The target was simple, we have an internal cloud datacenter at work that provides users and customers both virtual machines and physical machines. Each machine has to network interface cards […]
Example of private VLAN isolation across Virtual and Physical servers using ESX/dvSwitch and HP Networking Comware switches

The target was simple, we have an internal cloud datacenter at work that provides users and customers both virtual machines and physical machines. Each machine has to network interface cards […]

REST-full API, the new trendy bandwagon of cloud automation and SDN due to its simplicity and universal compatibility. TI is essentially a http transfer protocol with JSON payload. And if […]
HPE’s DCN / Nuage SDN – Part 3 – REST API introduction

REST-full API, the new trendy bandwagon of cloud automation and SDN due to its simplicity and universal compatibility. TI is essentially a http transfer protocol with JSON payload. And if […]

Here I was getting a trouble with communication between an ESX virtual machine and the nearby switch (Nuage/DCN controller VM talking with a VTEP switch if someone is interested) and […]
[minipost] Capturing bidirectional traffic of virtual machine (VMs) on vmWare ESX 6.x

Here I was getting a trouble with communication between an ESX virtual machine and the nearby switch (Nuage/DCN controller VM talking with a VTEP switch if someone is interested) and […]

In the previous part 1, we have installed basic HPE DCN system on a group of ESXi hosts. But we didn’t actually done anything inside it, so lets fix this […]
HPE’s DCN / Nuage SDN – Part 2 – First Steps Creating Virtual/Overlay Customer Network

In the previous part 1, we have installed basic HPE DCN system on a group of ESXi hosts. But we didn’t actually done anything inside it, so lets fix this […]

Nuage Networks is a spinoff from Alcatel-Lucent (now under Nokia as they acquisition Alcatel recently) and also a name of software defined network (SDN) overlay solution for datacenters and direct […]
HPE’s DCN / Nuage SDN – Part 1 – Introduction and LAB Installation Tutorial

Nuage Networks is a spinoff from Alcatel-Lucent (now under Nokia as they acquisition Alcatel recently) and also a name of software defined network (SDN) overlay solution for datacenters and direct […]

I had Hadoop experience now for more than a year, thanks to a great series of Cloud Computing courses on Coursera.org, now after ~6 months of running via several cloud […]
Tutorial for small Hadoop cloud cluster LAB using virtual machines and compiling/running first “Hello World” Map-Reduce example project

I had Hadoop experience now for more than a year, thanks to a great series of Cloud Computing courses on Coursera.org, now after ~6 months of running via several cloud […]

Nicer, more stable, AJAX/JSON enabled pingonyou.com and also preparations in background to introduce the 24/7 Monitoring feature. So here we are. First a bit of short history, if you have […]
Ping on you! – Beta 2.0 is online

Nicer, more stable, AJAX/JSON enabled pingonyou.com and also preparations in background to introduce the 24/7 Monitoring feature. So here we are. First a bit of short history, if you have […]

A small lab showing basic configuration of BGP between Cisco and HP (Comware v5). This is just something small we deploying recently, there is nothing grand here, only a minor […]
[minipost]Quick LAB/config example for IPv6 BGP between HP Networking Comware v5 andCisco

A small lab showing basic configuration of BGP between Cisco and HP (Comware v5). This is just something small we deploying recently, there is nothing grand here, only a minor […]

After a few previous web programming endeavors (both here on networkgeekstuff.com with SDN programming and in real life job) I had a taste to develop “something” and since I am […]
Ping on You! – small weekend web/CGI project

After a few previous web programming endeavors (both here on networkgeekstuff.com with SDN programming and in real life job) I had a taste to develop “something” and since I am […]

This will really be a micro-post as I only want to document this for my benefit. This is a way how to change partition table for disks, or USB sticks. […]
[minipost] Windows partition editing with diskpart

This will really be a micro-post as I only want to document this for my benefit. This is a way how to change partition table for disks, or USB sticks. […]

In this article, I am going to give you a quick guide how to run a single checkpoint FW as virtual machine quickly on your notebook and then super-quick introduction […]
Checkpoint Firewall CLI tool “dbedit” and quick lab examples

In this article, I am going to give you a quick guide how to run a single checkpoint FW as virtual machine quickly on your notebook and then super-quick introduction […]

In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for […]
Tutorial for creating first external SDN application for HP SDN VAN controller – Part 3/3: “Node Cutter” SDN application in perl with web interface

In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for […]

In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for […]
Tutorial for creating first external SDN application for HP SDN VAN controller – Part 2/3: Influencing Flows via cURL commands

In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for […]

Latest technical articles:
  • After a longer break, I managed to get back to my small visualization experiment from last time, and improve it a little. Firstly, the NETCONF interface was switched for a […]24September 17, 2019

    [mini-update] Network Topology Visualization #2 – Using SNMP as data source and enhanced visuals

    After a longer break, I managed to get back to my small visualization experiment from last time, and improve it a little. Firstly, the NETCONF interface was switched for a […]

  • Ok, first let’s get one thing clear. This is an educational project for me learning some computer vision algorithms (I want to make an insect identification system to protect a […]26August 11, 2018

    Autopilot for Elite Dangerous using OpenCV and thoughts on CV enabled bots in visual-to-keyboard loop

    Ok, first let’s get one thing clear. This is an educational project for me learning some computer vision algorithms (I want to make an insect identification system to protect a […]

  • Ok, this is a continuation of two streams of articles here, first my recent NETCONF tutorial here, and secondly my very old project (back then in Java) of visualization of […]18December 12, 2017

    Network Topology Visualization – Example of Using LLDP Neighborships, NETCONF and little Python/Javascript

    Ok, this is a continuation of two streams of articles here, first my recent NETCONF tutorial here, and secondly my very old project (back then in Java) of visualization of […]

  • So let’s learn about NETCONF, but first a bit of history and perspective. Everyone in networking business at least once heard about SNMP (Simple Network Management Protocol), which is the […]6December 11, 2017

    HP Networking/Comware NETCONF interface quick tutorial (using python’s ncclient and pyhpecw7)

    So let’s learn about NETCONF, but first a bit of history and perspective. Everyone in networking business at least once heard about SNMP (Simple Network Management Protocol), which is the […]

  • After working with Mikrotik / RouterBoard routers for a long time, I recently needed to replace an aging old wifi router at my parents and the recent brand of very […]0September 9, 2017

    [minipost] Protecting SSH on Mikrotik with 3-strike SSH ban using only firewall rules

    After working with Mikrotik / RouterBoard routers for a long time, I recently needed to replace an aging old wifi router at my parents and the recent brand of very […]

  • The target was simple, we have an internal cloud datacenter at work that provides users and customers both virtual machines and physical machines. Each machine has to network interface cards […]1May 26, 2017

    Example of private VLAN isolation across Virtual and Physical servers using ESX/dvSwitch and HP Networking Comware switches

    The target was simple, we have an internal cloud datacenter at work that provides users and customers both virtual machines and physical machines. Each machine has to network interface cards […]

  • REST-full API, the new trendy bandwagon of cloud automation and SDN due to its simplicity and universal compatibility. TI is essentially a http transfer protocol with JSON payload. And if […]2December 26, 2016

    HPE’s DCN / Nuage SDN – Part 3 – REST API introduction

    REST-full API, the new trendy bandwagon of cloud automation and SDN due to its simplicity and universal compatibility. TI is essentially a http transfer protocol with JSON payload. And if […]

  • Here I was getting a trouble with communication between an ESX virtual machine and the nearby switch (Nuage/DCN controller VM talking with a VTEP switch if someone is interested) and […]1December 10, 2016

    [minipost] Capturing bidirectional traffic of virtual machine (VMs) on vmWare ESX 6.x

    Here I was getting a trouble with communication between an ESX virtual machine and the nearby switch (Nuage/DCN controller VM talking with a VTEP switch if someone is interested) and […]

  • In the previous part 1, we have installed basic HPE DCN system on a group of ESXi hosts. But we didn’t actually done anything inside it, so lets fix this […]6September 23, 2016

    HPE’s DCN / Nuage SDN – Part 2 – First Steps Creating Virtual/Overlay Customer Network

    In the previous part 1, we have installed basic HPE DCN system on a group of ESXi hosts. But we didn’t actually done anything inside it, so lets fix this […]

  • Nuage Networks is a spinoff from Alcatel-Lucent (now under Nokia as they acquisition Alcatel recently) and also a name of software defined network (SDN) overlay solution for datacenters and direct […]8August 1, 2016

    HPE’s DCN / Nuage SDN – Part 1 – Introduction and LAB Installation Tutorial

    Nuage Networks is a spinoff from Alcatel-Lucent (now under Nokia as they acquisition Alcatel recently) and also a name of software defined network (SDN) overlay solution for datacenters and direct […]

  • I had Hadoop experience now for more than a year, thanks to a great series of Cloud Computing courses on Coursera.org, now after ~6 months of running via several cloud […]3June 12, 2016

    Tutorial for small Hadoop cloud cluster LAB using virtual machines and compiling/running first “Hello World” Map-Reduce example project

    I had Hadoop experience now for more than a year, thanks to a great series of Cloud Computing courses on Coursera.org, now after ~6 months of running via several cloud […]

  • Nicer, more stable, AJAX/JSON enabled pingonyou.com and also preparations in background to introduce the 24/7 Monitoring feature. So here we are. First a bit of short history, if you have […]1June 4, 2016

    Ping on you! – Beta 2.0 is online

    Nicer, more stable, AJAX/JSON enabled pingonyou.com and also preparations in background to introduce the 24/7 Monitoring feature. So here we are. First a bit of short history, if you have […]

  • A small lab showing basic configuration of BGP between Cisco and HP (Comware v5). This is just something small we deploying recently, there is nothing grand here, only a minor […]3June 2, 2016

    [minipost]Quick LAB/config example for IPv6 BGP between HP Networking Comware v5 andCisco

    A small lab showing basic configuration of BGP between Cisco and HP (Comware v5). This is just something small we deploying recently, there is nothing grand here, only a minor […]

  • After a few previous web programming endeavors (both here on networkgeekstuff.com with SDN programming and in real life job) I had a taste to develop “something” and since I am […]1March 28, 2016

    Ping on You! – small weekend web/CGI project

    After a few previous web programming endeavors (both here on networkgeekstuff.com with SDN programming and in real life job) I had a taste to develop “something” and since I am […]

  • This will really be a micro-post as I only want to document this for my benefit. This is a way how to change partition table for disks, or USB sticks. […]0March 28, 2016

    [minipost] Windows partition editing with diskpart

    This will really be a micro-post as I only want to document this for my benefit. This is a way how to change partition table for disks, or USB sticks. […]

  • In this article, I am going to give you a quick guide how to run a single checkpoint FW as virtual machine quickly on your notebook and then super-quick introduction […]8February 27, 2016

    Checkpoint Firewall CLI tool “dbedit” and quick lab examples

    In this article, I am going to give you a quick guide how to run a single checkpoint FW as virtual machine quickly on your notebook and then super-quick introduction […]

  • In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for […]5May 24, 2015

    Tutorial for creating first external SDN application for HP SDN VAN controller – Part 3/3: “Node Cutter” SDN application in perl with web interface

    In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for […]

  • In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for […]4May 23, 2015

    Tutorial for creating first external SDN application for HP SDN VAN controller – Part 2/3: Influencing Flows via cURL commands

    In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for […]

  • In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for […]4May 22, 2015

    Tutorial for creating first external SDN application for HP SDN VAN controller – Part 1/3: LAB creation and REST API introduction

    In this tutorial series, I will show you by example, how to build your first external REST API based SDN application for HP SDN VAN controller, with web interface for […]

  • A few months back my wife started a small business. Of course I was the one to build the “IT stuff” here that included a website, some reservation system on […]0May 19, 2015

    Tutorial: Email server for a small company – including IMAP for mobiles, SPF and DKIM

    A few months back my wife started a small business. Of course I was the one to build the “IT stuff” here that included a website, some reservation system on […]

  • In this article, I will show how to do a very simple auto-scaling system on eucalyptus cloud using the wonderful eucalyptus fast start image. Afterwards you will appreciate how easy […]2February 2, 2015

    Eycalyptus – cloud introduction and auto-scaling tutorial

    In this article, I will show how to do a very simple auto-scaling system on eucalyptus cloud using the wonderful eucalyptus fast start image. Afterwards you will appreciate how easy […]

  • Hewlett-Packard (HP) is a long enterprise  supporter of cloud technologies and early this year, they released publicly HP Helion Community Edition (CE). HP Helion is HP’s OpenStack based cloud system […]14June 10, 2014

    Introduction and LAB tutorial of HP Helion Community Edition, the OpenStack based “cloud” system that can give you a personal cloud!

    Hewlett-Packard (HP) is a long enterprise  supporter of cloud technologies and early this year, they released publicly HP Helion Community Edition (CE). HP Helion is HP’s OpenStack based cloud system […]

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  • Recent Articles
    • [mini-update] Network Topology Visualization #2 – Using SNMP as data source and enhanced visuals September 17, 2019
    • Autopilot for Elite Dangerous using OpenCV and thoughts on CV enabled bots in visual-to-keyboard loop August 11, 2018
    • Network Topology Visualization – Example of Using LLDP Neighborships, NETCONF and little Python/Javascript December 12, 2017
    • HP Networking/Comware NETCONF interface quick tutorial (using python’s ncclient and pyhpecw7) December 11, 2017
    • [minipost] Protecting SSH on Mikrotik with 3-strike SSH ban using only firewall rules September 9, 2017
    • Example of private VLAN isolation across Virtual and Physical servers using ESX/dvSwitch and HP Networking Comware switches May 26, 2017
    • HPE’s DCN / Nuage SDN – Part 3 – REST API introduction December 26, 2016
    • [minipost] Capturing bidirectional traffic of virtual machine (VMs) on vmWare ESX 6.x December 10, 2016
    • HPE’s DCN / Nuage SDN – Part 2 – First Steps Creating Virtual/Overlay Customer Network September 23, 2016
    • HPE’s DCN / Nuage SDN – Part 1 – Introduction and LAB Installation Tutorial August 1, 2016
    • Tutorial for small Hadoop cloud cluster LAB using virtual machines and compiling/running first “Hello World” Map-Reduce example project June 12, 2016
    • Ping on you! – Beta 2.0 is online June 4, 2016
    • [minipost]Quick LAB/config example for IPv6 BGP between HP Networking Comware v5 andCisco June 2, 2016
    • Ping on You! – small weekend web/CGI project March 28, 2016
    • [minipost] Windows partition editing with diskpart March 28, 2016
    • Checkpoint Firewall CLI tool “dbedit” and quick lab examples February 27, 2016
    • Soviet Mi-24V Hind E, 1/72 scale June 6, 2015
    • Tutorial for creating first external SDN application for HP SDN VAN controller – Part 3/3: “Node Cutter” SDN application in perl with web interface May 24, 2015
    • Tutorial for creating first external SDN application for HP SDN VAN controller – Part 2/3: Influencing Flows via cURL commands May 23, 2015
    • Tutorial for creating first external SDN application for HP SDN VAN controller – Part 1/3: LAB creation and REST API introduction May 22, 2015
    • Tutorial: Email server for a small company – including IMAP for mobiles, SPF and DKIM May 19, 2015
    • Eycalyptus – cloud introduction and auto-scaling tutorial February 2, 2015
    • Introduction and LAB tutorial of HP Helion Community Edition, the OpenStack based “cloud” system that can give you a personal cloud! June 10, 2014
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