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vmWare vRealize Automation (with embedded vRO) – Full Example of Custom Resources for Executing Ansible Playbooks from Blueprints

visualization3_thumbnails

Network Topology Visualization #3 – Exploring other D3 visualization options for a DataCenter

Mischief-Makers LLDP map

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

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

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

NETCONF tutorial thumbnail

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

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

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

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

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

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

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

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

Pingonyou.com - Beta 2.0 is alive!

Ping on you! – Beta 2.0 is online

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

Ping on You! – small weekend web/CGI project

[minipost] Windows partition editing with diskpart

Checkpoint Firewall CLI tool “dbedit” and quick lab examples

Soviet Mi-24V Hind E, 1/72 scale

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

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

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

email tutorial Thumbnail

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

Eycalyptus – cloud introduction and auto-scaling tutorial

MULTIHOMING - a complete step-by-step guide [Download eBook] Advertisment
[minipost] Mikrotik/RouterBoard port-knocking example for firewall/NAT openings

[minipost] Mikrotik/RouterBoard port-knocking example for firewall/NAT openings

Peter Havrila June 9, 2014
Home Networking Networking

The situation is very simple, you are away from home (imagine visiting a friend or being at work), but you desperately would like to access your internal LAN FTP/Samba/etc… , … Read More

Playing with the new HP SDN Controller – including getting started guide with Open vSwitch in GNS3

Playing with the new HP SDN Controller – including getting started guide with Open vSwitch in GNS3

Peter Havrila January 1, 2014
HP Networking Networking

So, HP has made one if its significant moves last November (2013) with the first public release of their OpenFlow based SDN VAN Controller 2.0. And because you can download … Read More

20 Comments on Playing with the new HP SDN Controller – including getting started guide with Open vSwitch in GNS3
Nexus 7k – Getting Started Examples – Part1 (basics, VDC and vPC)

Nexus 7k – Getting Started Examples – Part1 (basics, VDC and vPC)

Peter Havrila December 19, 2013
Cisco Networking

So I finally had a project with Cisco Nexus switches to finally get hands on experience on these boxes. I am no longer a fanboy of Cisco, so just practically, … Read More

4 Comments on Nexus 7k – Getting Started Examples – Part1 (basics, VDC and vPC)
BeagleBone Black replaced Raspberry PI running networkgeekstuff.com (and performance reasons review)

BeagleBone Black replaced Raspberry PI running networkgeekstuff.com (and performance reasons review)

Peter Havrila November 19, 2013
Linux NetworkGeekStuff Networking Projects

With Raspberry PI, a very great microPC platform that started a trend of its own with two million RasberyPIs sold, a new market has emerged calling for microPC segment companies to compete. … Read More

How to create custom Linux Wi-Fi regulatory database to unlock 30db/1000mW

How to create custom Linux Wi-Fi regulatory database to unlock 30db/1000mW

Peter Havrila September 10, 2013
Home Networking Linux Networking

There are two protections that your Wi-Fi has to limit it’s maximum power output to a legal value (100mW for example). First is the Wi-Fi interface internal HW limit. But … Read More

11 Comments on How to create custom Linux Wi-Fi regulatory database to unlock 30db/1000mW
[minipost] Mikrotik scripting: Monitoring interface IP for changes

[minipost] Mikrotik scripting: Monitoring interface IP for changes

Peter Havrila August 15, 2013
Home Networking Networking

On my home network (that you might have noticed in older articles), I own a very nice Mikrotik/RoaterBoard RB450 router. I have an external public IP address that I recieve … Read More

3 Comments on [minipost] Mikrotik scripting: Monitoring interface IP for changes
Playing with other people Wi-Fi part 2: WPS, the “backdoor” to WPA

Playing with other people Wi-Fi part 2: WPS, the “backdoor” to WPA

Peter Havrila July 23, 2013
Home Networking Linux Networking Theory

In the previous post here, I quickly showed the historical protection mechanism called WEP, its weaknesses and how to quickly crack it. The practical result of that problem is that … Read More

2 Comments on Playing with other people Wi-Fi part 2: WPS, the “backdoor” to WPA
Playing with other people Wi-Fi part 1: The good old “WEP”

Playing with other people Wi-Fi part 1: The good old “WEP”

Peter Havrila July 17, 2013
Home Networking Linux Networking Theory

Many of us own a Wi-Fi network at home. It is great, convenient and no cables! When this technology first came to existence there were several competitors available as well … Read More

Configuring MPLS L3 VPN on IOS XR

Configuring MPLS L3 VPN on IOS XR

Peter Havrila May 13, 2013
Cisco Networking

MPLS L3 VPN are a common standard in every bigger ISP or Datacenter for many years now and most of us know the basic principles and have experience configuring this … Read More

2 Comments on Configuring MPLS L3 VPN on IOS XR
[minipost] Coursera.org, the free and online way to learn on a colledge level?

[minipost] Coursera.org, the free and online way to learn on a colledge level?

Peter Havrila April 30, 2013
Networking Theory

When Wikipedia became mainstream, everyone was talking about revolution in knowledge and overall transformation of access to information for free to everyone. And indeed this was revolutionary, Wikipedia today hold … Read More

2 Comments on [minipost] Coursera.org, the free and online way to learn on a colledge level?
Cisco IOS XR – Complete Getting Started Examples Guide, Part 2/2

Cisco IOS XR – Complete Getting Started Examples Guide, Part 2/2

Peter Havrila January 8, 2013
Cisco Networking

Following previous part 1 article of this IOS XR guide that presented basic examples for IOS XR on most CCNA level technologies, this post will continue and give the basics … Read More

6 Comments on Cisco IOS XR – Complete Getting Started Examples Guide, Part 2/2
[minipost] Mikrotik QoS Prioritization Example

[minipost] Mikrotik QoS Prioritization Example

Peter Havrila January 3, 2013
Home Networking NetworkGeekStuff Networking

If you ever hosted any internet service at home and/or had some network application using your Internet connection upload and disturbing your other activities, one very common example (but not … Read More

6 Comments on [minipost] Mikrotik QoS Prioritization Example
Master-Master replication of Apache/MySQL tutorial with configuration example

Master-Master replication of Apache/MySQL tutorial with configuration example

Peter Havrila December 1, 2012
Home Networking Linux NetworkGeekStuff Networking

In this article, I will show you how to create a redundant Apache/MySQL cluster. I personally used this on two Raspberry PI to had them in redundancy and have load-balanced … Read More

1 Comment on Master-Master replication of Apache/MySQL tutorial with configuration example
Load-Balancing network traffic on Mikrotik router tutorial with example configuration

Load-Balancing network traffic on Mikrotik router tutorial with example configuration

Peter Havrila December 1, 2012
Home Networking NetworkGeekStuff Networking

This is first part of a tutorial how to achieve load-balancing of a service on two servers. In this part we will focus on the network side and I will … Read More

2 Comments on Load-Balancing network traffic on Mikrotik router tutorial with example configuration
NetworkGeekStuff.com running load-balanced on two Raspberry PIs!

NetworkGeekStuff.com running load-balanced on two Raspberry PIs!

Peter Havrila November 26, 2012
Home Networking NetworkGeekStuff Networking Projects

And yes, complete tutorial for web/MySQL event driven synchronization for Master-Master replication without conflicts coming soon! I will also include a guide how to turn your home Mikrotik router on … Read More

2 Comments on NetworkGeekStuff.com running load-balanced on two Raspberry PIs!
UPDATED: L2 MPLS VPN introduction and H3C configuration examples (Martini and Kompella VLLs/VPLS)

UPDATED: L2 MPLS VPN introduction and H3C configuration examples (Martini and Kompella VLLs/VPLS)

Peter Havrila November 12, 2012
HP Networking Networking

In this article we will have a quick look at all basic MPLS L2 VPNs (CCC/Martini/Kompella) and also one that is by far the most coolest, the VPLS (or sometimes … Read More

1 Comment on UPDATED: L2 MPLS VPN introduction and H3C configuration examples (Martini and Kompella VLLs/VPLS)
Cisco IOS XR – Complete Getting Started Examples Guide, Part1/2

Cisco IOS XR – Complete Getting Started Examples Guide, Part1/2

Peter Havrila November 1, 2012
Cisco Networking

Ever wanted quick reference for IOS XR in basic security, configuration committing, RIP, OSPF, EIGRP, IS-IS, IPv6 and comparisons with classic IOS? It’s right here fore you. There is not … Read More

16 Comments on Cisco IOS XR – Complete Getting Started Examples Guide, Part1/2
Quick Summary for IPv6 Theory

Quick Summary for IPv6 Theory

Peter Havrila October 16, 2012
Networking Theory Theory Notes

This is a dynamically expanded article where I will collect basic theory information about IPv6 for quick reference to myself. This article will expand as I encounter new information about … Read More

Access your home LAN securely via Internet from iPhone/iPad

Access your home LAN securely via Internet from iPhone/iPad

Peter Havrila October 11, 2012
Home Networking Networking

Long story short, I am a heavy and very happy both iPhone/iPad and  Mikrotik/RouterBoard home router user for about five years now and in this quick how-to I will show … Read More

1 Comment on Access your home LAN securely via Internet from iPhone/iPad
NetworkGeekStuff.com running now on Raspberry PI!

NetworkGeekStuff.com running now on Raspberry PI!

Peter Havrila August 16, 2012
NetworkGeekStuff Projects

Hello all, not much happening here since June, but now this page come across some more internal changes than external. First of all I have managed to move the whole … Read More

5 Comments on NetworkGeekStuff.com running now on Raspberry PI!
Rapid Ring Protection Protocol – HP Networking STP alternative?

Rapid Ring Protection Protocol – HP Networking STP alternative?

Peter Havrila June 11, 2012
HP Networking Networking

Well, we all know STP as L2 loop-protection protocol running now in 99.9% of networks worldwide (where L2 loops are possible). HP Networking however developed a method that they hope … Read More

4 Comments on Rapid Ring Protection Protocol – HP Networking STP alternative?
H3C and HP A-Series hidden commands

H3C and HP A-Series hidden commands

Peter Havrila May 21, 2012
HP Networking Networking

As I stumbled on E-Series hidden commands last time, on A-Series/H3C devices hidden commands will be presented in this short post on H3C 5800 L3 switch and on different models … Read More

ProCurve and HP E-Series hidden commands

ProCurve and HP E-Series hidden commands

Peter Havrila May 18, 2012
HP Networking Networking

Some vendors, like Cisco uses commands that are hidden, and undocumented. ProCurve has a complete command line interface mode with these commands and in this brief post, I will give … Read More

MPLS VPN tutorial with configuration example for HP A-Series (H3C)

MPLS VPN tutorial with configuration example for HP A-Series (H3C)

Peter Havrila May 16, 2012
HP Networking Networking

Ok, this post is about basic configuration of MPLS and the basic MPLS VPNs theory so you can understand the HP Networking (HPN) A-Series (or commonly known as H3C series) … Read More

2 Comments on MPLS VPN tutorial with configuration example for HP A-Series (H3C)

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Archive

10 Latest Articles

  • vmWare vRealize Automation (with embedded vRO) – Full Example of Custom Resources for Executing Ansible Playbooks from Blueprints October 26, 2021
  • Network Topology Visualization #3 – Exploring other D3 visualization options for a DataCenter July 11, 2021
  • [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
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