Sat. May 14, 2022 – SSH Tricks and Tips

In this presentation, we’ll take a look at how the secure shell
(SSH) protocol can be used to to tunnel many different types of network traffic. We’ll cover X Window forwarding, local port forwarding (think VNC), and how to use its support for the SOCKS
protocol.

Marks’s presention notes are here.

https://www.palaceofretention.ca/vp/sshtunnels.pdf

This meeting will be virtual only. Please do not go to Q College as no one will be there. Click the link below and join us online. Thank you.

(QCollege has welcomed us back to meet in-person. We thank them for their support. Suite 303 771 Vernon Ave · Victoria, BC)

9:30-10a Cocktails & Conversation (virtual)
10a Presentation

https://meet.vinnythegeek.ca/vicpimakers

We will be holding a Hybrid meeting (Jitsi).

Postponed – Projects and Challenges

Due to the current situation @ March 14, 2020, in-person meetings have been suspended until further notice. Please do join us on Slack or at our online learning sessions using Jitsi. Write to hello at vicpimakers.ca for invitations and information.

Q-CollegeSuite 303 771 Vernon Ave · Victoria, BC – 10am

1) Hack Challenge, by George
Modify a window alarm to be a useful or entertaining device. Window alarms to be supplied free March 14th, one per attendee.

2) Hack Challenge, by Deid
New “Christmas Light” patterns

3) … bring projects that you want to share or need help with… If you like, email a description to be added to this page.

It is fun to repurpose battery powered consumer products.  For instance, here is a Leak Detector made from a window alarm.  The article includes the window alarm schematic.  

And George made a bike theft deterrent alarm with remote radio alerting from the same window alarm.

In normal operation, the window alarm senses separation from its external magnet via its internal reed switch and feeds its piezo disk with an oscillation.  The window alarm runs on 3 button cells and draws no current when the reed switch is open. There is also a slide switch to enable/disable the alarm.

Here is a photo of the circuit board:  The OUT signal from the 8 pin oscillator chip is a 10V DC wave, pumped up by the inductor from 5 volts. A voltage divider can be added to lower this chip output signal to less than 5v to feed another device.    

Or the piezo can be used as a microphone, providing about 100mv into a very high impedance input

In May we can show what we achieved.

New “Christmas Light” patterns

Deid successfully connected a 50 light string of addressable LEDs to an ESP8266 to cause the lights to light and change colour and move and …

Deid created the following patterns:

  • Primary
  • Random
  • Web Safe
  • Follow
  • Lead
  • Random On ***
  • All On
  • All Off
  • Rainbow
  • Moving
  • Colour
  • Christmas
  • Rainbow Group
  • Dual Colour ***
    *** Shown in the images

The ESP8266 C code to do this can be found here.  Deid makes no representation that the existing code is good.  In fact he knows some of it is not. Feel free to fix.

The challenge is to add more patterns and the code to implement the patterns.  If you send Deid the code he will load and try the code. Unless someone comes up with a better way for folks to test remotely.


Thur Feb 27, 2020 – NetSig – Defending with IP Tables/bpf

netsigbd

A Special Interest Group focused on computer networking. Building networks for Today and Tomorrow!
Half of the meeting is education, or presentation. Half is sharing, and problem solving.
Bring a laptop with Wireshark installed: We’ll be running a hands on workshop using iptables/ip6tables/bpf (BSD Packet Filter)
Thursday, February 20, 2020
6:30 PM to 8:00 PM
Q-CollegeSuite 303 771 Vernon Ave · Victoria, BC

Thursday, Jan 23, 2020 – NetSig

netsig image

A Special Interest Group focused on computer networking. Building networks for Today and Tomorrow!

Half of the meeting is education, or presentation. Half is sharing, and problem solving.

Bring a laptop with Wireshark installed: We’ll look into scanning networks with NMAP, and what info you can glean from it.

Thursday, January 23, 2020
6:30 PM to 8:00 PM
Q-College
Suite 303 771 Vernon Ave · Victoria, BC

NetSig

net sig

First Meeting – Thursday, July 25, 2019
6:30 PM to 8:00 PM 
Q-College · Suite 303 771 Vernon Ave · Victoria, BC

Bring a laptop with Wireshark (download) installed: 
We’ll be covering the basics of packet capture, and seeing what is actually on your network. More Wireshark: pad

What is NetSig?

A Special Interest Group focused on computer networking.
Building networks for Today and Tomorrow!

1.5 hours on a weekday evening
Half of the meeting is education or presentation. 
Half is sharing, and problem-solving.

A gathering of like-minded persons.
Understand and solve some of the challenges in networking today.
Are you IPv6 ready? 
Help Victoria become a leader, rather than a follower in Networking.

Topics

Education | Traffic analysis: ELK stack and Packet Beat | Virtualized Networking in Cloud containers | IPv6 | Routing |