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SSH, Keys, and GPG By Dan Aukes

Tools and topics specific to SSH, GPG, and encryption

IOT Stuff By Dan Aukes

Collection of IOT Notes

Ros Tutorial By Dan Aukes

Lab instructions for setting up ROS

Posts

Installing GrapheneOS on a Pixel 4a

Instructions derived from https://grapheneos.org/install/cli Download Developer Tools sudo apt install android-sdk-platform-tools-common sudo apt install signify-openbsd echo "alias signify=signify-openbsd" >> ~/.

Korg Nano

SUBSYSTEM=="usb", ATTR{idVendor}=="0944", ATTR{idProduct}=="010f", MODE="666" sudo cp 98-korg-nano.rules /etc/udev/rules.d/ sudo chmod 644 /etc/udev/rules.

Setting up OptiTrack

Links http://wiki.ros.org/mocap_optitrack Install sudo apt install ros-melodic-mocap-optitrack Create a rigid body and ensure it is being transmitted from Motiv Edit mocap.

Setup Samba from Bash

Make your folder mkdir ~/happy chmod 0700 ~/happy Set up samba sudo apt install samba sudo nano /etc/samba/smb.

Simple Netplan Config

Example update enp0s3 to match your ethernet interface update ip4 address to match an available address

Start VirtualBox VM as a Service

Steps Ensure you are a member of vboxusers group sudo usermod -a -G vboxusers $USER Create a script cat <<EOT > vbox_vm_start@.

Too Many Authentication Failures?

Received disconnect from ########## port 22:2: Too many authentication failures Add the IdentitiesOnly option to your config file

Ubuntu Prep

In ubuntu Check that you are a member of the following groups

Using Github with two accounts

Instructions Create a new, separate key for each github account

Working with pdfs from the command line

Merge pdfs from Bash sudo apt install pdftk pdftk file1.pdf file2.