andramalech

var str = msg.payload;
var buf = [];

for (var i=0, l = str.length; i < l; i++) {
    var ascii = str.charCodeAt(i);
    buf.push(ascii);
}
buf.push(255);
buf.push(255);
buf.push(255);

andramalech

• Video by MetalMusings https://www.youtube.com/watch?v=NQ-HnrusGJo
• Linked LinuxCNC Forum Post https://forum.linuxcnc.org/10-advanced-configuration/42048-notes-from-installation-of-ethercat-on-raspberry-pi-4

The folowing is a writup from Hakans forum post!

RPi Setup

1. Download & Write image to SD card: www.linuxcnc.org/iso/linuxcnc-2.8.1-pi4.zip
2. Configure Wifi via wpa_supplicant.conf
3. Put SD card into RPi and verify that RT-PREEMT Kernel is running: uname -a
4. Update everything and reboot: sudo apt update && sudo apt upgrade && sudo reboot

andramalech

Proxmox - SPICE client setup for MacOS

1. Install a working (and compiled) version of virt-viewer. You may view the homebrew package's upstream source on GitHub.

   brew tap jeffreywildman/homebrew-virt-manager
   brew install virt-viewer

2. Once that's installed should be able make a call remote-viewer with a pve-spice.vv file downloaded from proxmox web interface

andramalech

I woke up, started my laptop, and I got laptop poweroff just after booting. My Carbon X1 (7th generation) is only 2 months
old. Not really best way to start a day.

Solution:

1. Power off your lap top
2. Find this little reset button on the bottom of your laptop
3. Hold for five seconds let go; plug laptop back 
4. Hit power button

andramalech

#cloud-config
package_upgrade: true

ssh_authorized_keys:
  - <your key>

packages:
  - apt-transport-https
  - ca-certificates
  - curl

andramalech

  adminer_container:
        image: adminer:latest
        environment: 
            ADMINER_DEFAULT_SERVER: thomasd_ignitionDev_db # Docker Compose db name
            ADMINER_DESIGN: galkaev
        ports: 
          - 21080:8080   # change port

andramalech

Running Linux and Windows on M1 with QEMU

30.11.2020: Updated with the new patchseries and instructions for Windows

02.12.2020: Added tweaks

08.12.2020: Updated with patchseries v4

31.01.2020: Updated with patchseries v6

andramalech

#!/bin/bash
echo "Password for Samba User 'snippets':"
read -s smb_password_snippets
echo "Password for S3 User 'admin':"
read -s s3_password_admin
echo "Password for S3 User 'dev' (min-length: 8):"
read -s s3_password_dev
echo "Password for S3 User 'api' (min-length: 8):"
read -s s3_password_api
wget -O /usr/local/bin/minio https://dl.min.io/server/minio/release/linux-amd64/minio

andramalech

WireGuard Site-to-Site

Accessing a subnet that is behind a WireGuard client using a site-to-site setup

Problem Summary

We want to access a local subnet remotely, but it is behind a NAT firewall and we can't setup port forwarding. Outgoing connections work, but all incoming connections get DROPPED by the ISP's routing policy.

Solution Summary

andramalech

ssh-cheatsheet

Bash SSH command cheatsheet

Connecting to Remote Host From Local Client

SSH

SSH into a remote server.