kralo

## a_TetraControl_Live_Web_Callmonitor.md

      
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                kralo
                / a_TetraControl_Live_Web_Callmonitor.md
            
            
              Created May 11, 2022
            
              
                Live Callmonitor for Tetracontrol - Tetra Funkgespräche mit Details (in kleinem always-on-top Windows Fenster anzeigen geht mit Electron)
              
          
      View a_TetraControl_Live_Web_Callmonitor.md
  
      
    Live Tetra (Group-)Callmonitor für Tetracontrol

Hiermit lassen sich aktive Gespräche, die von TetraControl erfasst werden, live über Webtechnologien anzeigen.
Sehr hilfreich bei mehreren Funkkreisen und Arbeitsplätzen mit viel Bildschirmplatz, die ein kleines weiteres Fenster anzeigen können.
Es werden bis zu 4 Funkkreise unterstütz, mit Klick auf den blauen Text lassen die sich einfach verstecken/anzeigen.

  
## a_reresolve-dns-windows-powershell.md

      
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                kralo
                / a_reresolve-dns-windows-powershell.md
            
            
              Created Dec 14, 2021
            
              
                Wireguard re-resolve dns script for dynamic endpoints (dyndns)
              
          
      View a_reresolve-dns-windows-powershell.md
  
      
    This is a script I use on windows for dynamic DNS endpoints ("servers").
The big upside is that it supports multiple configurations and does not need hard-coded endpoints or "ping-endpoints".
I have tested this in win7 and win10. You might add it to the task scheduler and run this every 3 minutes or so.
Some care has to be taken as to know which user is running the script. The encrypted dpapi-binary file can only be read by the same user that created/saved the tunnels, i.e. \system.

  
## a_Wireguard_Windows_Client_Unprivileged.md

      
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                kralo
                / a_Wireguard_Windows_Client_Unprivileged.md
            
            
              Created Sep 10, 2021
            
              
                wireguard client on windows unprivileged user restart tunnel
              
          
      View a_Wireguard_Windows_Client_Unprivileged.md
  
      
    Howto install wireguard as tunnel-Service when user is not local administrator.
See the setup .bat for setup. Key here is to set the service rights, so that anyone can restart the service.
See the restart script for how to restart. this is especially useful if the tunnel is "broken", because the peer is behind a dynamic dns service.

  
## a_electron_auto-resize_window_to_content.md

      
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                kralo
                / a_electron_auto-resize_window_to_content.md
            
            
              Last active Aug 15, 2021
            
              
                electron_auto-resize_window_to_content
              
          
      View a_electron_auto-resize_window_to_content.md
  
      
    resize the electron app to match the content. Might be used for web-based Asterisk BLI-Pages or other unobstrusive notifications.
Window is always on top on Ubuntu/Windows

  
## linux_v4l2-ctl_example_usage.txt
$ v4l2-ctl --stream-mmap --stream-count=2 --verbose
VIDIOC_QUERYCAP: ok
VIDIOC_REQBUFS: ok
VIDIOC_QUERYBUF: ok
VIDIOC_QBUF: ok
VIDIOC_QUERYBUF: ok
VIDIOC_QBUF: ok
VIDIOC_QUERYBUF: ok
VIDIOC_QBUF: ok
VIDIOC_QUERYBUF: ok

## a_raspberry-pi4-cmio-ov9281-dual.md

      
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                kralo
                / a_raspberry-pi4-cmio-ov9281-dual.md
            
            
              Last active Apr 23, 2021
            
              
                Raspberry Pi 4 CMIO with 2 ov9281 camera sensors
              
          
      View a_raspberry-pi4-cmio-ov9281-dual.md
  
      
    Raspberry Pi 4 CMIO with 2 ov9281 camera sensors
Tested with 2 Arducam "UC-599" and 2 Inno-maker "cam-mipiov9281"
Credits to 6by9 on the raspberrypi forums.
Howto:

Connect the jumpers on the J6
Download the *.dtbo file to /boot/overlays/
Add the line to /boot/config.txt:


## lsusb-ov9281_camera.txt
# supposed to be CMT-120FPS-OV9281-C411  "Global Shutter, Black/White Image, 120FPS High Frame Rate, USB Camera Module with OV9281 sensor"
# v4l2-ctl
Driver Info (not using libv4l2):
	Driver name   : uvcvideo
	Card type     : USB Camera: USB Camera
	Bus info      : usb-0000:00:1a.0-1.5
	Driver version: 4.15.18
	Capabilities  : 0x84200001
		Video Capture
		Streaming

## howto-securepointssl-nscerttype-error.md

      
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                kralo
                / howto-securepointssl-nscerttype-error.md
            
            
              Created Apr 1, 2020
            
              
                securepoint ssl client openvpn require nsCertType=SERVER
              
          
      View howto-securepointssl-nscerttype-error.md
  
      
    If you experience this error
VERIFY nsCertType ERROR: CN=server, require nsCertType=SERVER
try to update your Securepoint SSL VPN Client Version.
V. 2.0.18 did not work, V 2.0.28 did work.
Securepoint SSL Client 2.0.18 == not working
Try to start OpenVPN connection 


## IKEV2C_0USER.ini
[PROFILE1]
Name=T-IKEV2C_0USER
ConnMedia=21
ConnMode=0
SeamRoaming=1
PriVoIP=1
Gateway=1.2.3.4
PFS=14
UseComp=0
IkeIdType=3

## howto-xorg-framebuffer-default-size.txt
# there is no monitor attached

$ xrandr -q -d :0
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 4096 x 4096
VGA-1 disconnected primary (normal left inverted right x axis y axis)
LVDS-1 disconnected (normal left inverted right x axis y axis)
DVI-D-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)

# Write in xorg.conf
	$ v4l2-ctl --stream-mmap --stream-count=2 --verbose
	VIDIOC_QUERYCAP: ok
	VIDIOC_REQBUFS: ok
	VIDIOC_QUERYBUF: ok
	VIDIOC_QBUF: ok
	VIDIOC_QUERYBUF: ok
	VIDIOC_QBUF: ok
	VIDIOC_QUERYBUF: ok
	VIDIOC_QBUF: ok
	VIDIOC_QUERYBUF: ok
	# supposed to be CMT-120FPS-OV9281-C411 "Global Shutter, Black/White Image, 120FPS High Frame Rate, USB Camera Module with OV9281 sensor"
	# v4l2-ctl
	Driver Info (not using libv4l2):
	Driver name : uvcvideo
	Card type : USB Camera: USB Camera
	Bus info : usb-0000:00:1a.0-1.5
	Driver version: 4.15.18
	Capabilities : 0x84200001
	Video Capture
	Streaming
	[PROFILE1]
	Name=T-IKEV2C_0USER
	ConnMedia=21
	ConnMode=0
	SeamRoaming=1
	PriVoIP=1
	Gateway=1.2.3.4
	PFS=14
	UseComp=0
	IkeIdType=3
	# there is no monitor attached

	$ xrandr -q -d :0
	Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 4096 x 4096
	VGA-1 disconnected primary (normal left inverted right x axis y axis)
	LVDS-1 disconnected (normal left inverted right x axis y axis)
	DVI-D-1 disconnected (normal left inverted right x axis y axis)
	DP-1 disconnected (normal left inverted right x axis y axis)

	# Write in xorg.conf