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by elkberry
Sat Aug 12, 2017 1:36 pm
Forum: Advanced users
Topic: Running two WiFi adapters on the one Pi
Replies: 27
Views: 12224

Re: Running two WiFi adapters on the one Pi

As you need to/can specify a wpa config file with each network interface, I would imagine that you can use different wpa configuration files for different interfaces, as the parameter to wpa-conf in /etc/network/interfaces. That should allow connecting your two wlan interfaces to different networks....
by elkberry
Wed Aug 09, 2017 5:45 am
Forum: Advanced users
Topic: Two ethernet connections, remote viewing
Replies: 1
Views: 416

Re: Two ethernet connections, remote viewing

We will need to dig into network technology here, so please allow me to ask some questions to get an understanding of your setup. This also allows others to more easily break into your system once you've connected it to the Internet. Just kidding. However, whenever you are going to connect something...
by elkberry
Tue Aug 08, 2017 6:18 am
Forum: Networking and servers
Topic: ifconfig on RPi 3 not returning an IPv4 address
Replies: 4
Views: 1555

Re: ifconfig on RPi 3 not returning an IPv4 address

Just a minor note, as far as I remember having seen the behavior (but I may be wrong): the LLA only appears if eth0 has carrier, but not when it comes up.
by elkberry
Mon Aug 07, 2017 8:17 pm
Forum: Networking and servers
Topic: ifconfig on RPi 3 not returning an IPv4 address
Replies: 4
Views: 1555

Re: ifconfig on RPi 3 not returning an IPv4 address

You seem to neither have an IPv6 router running, nor an DHCPv4 server. No IPv6 router, because all you get on eth0 is the usual fe80:: IPv6 SLAAC LLA, that's an automatic link-local address. And as you don't see any IPv4 address, then there's also no DHCPv4 server responding on your eth0 network. So...
by elkberry
Thu Aug 03, 2017 5:52 am
Forum: Troubleshooting
Topic: No wireless interfaces found
Replies: 11
Views: 8977

Re: No wireless interfaces found

What access rights does /etc/dhcpcd.conf in your setup have? As it belongs to the dhcpcd package, your can try to reinstall this specific package. Did you run a file system check to make sure that this hasn't been an unfortunate byproduct of a crash that accidentally killed some access rights?
by elkberry
Mon Jul 31, 2017 8:10 pm
Forum: Networking and servers
Topic: Share wifi internet connection with ethernet port
Replies: 3
Views: 766

Re: Share wifi internet connection with ethernet port

Actually, what you want to achieve is a by-product when using NAT in the IPv4 world. You can't use bridging anyway, because you attach your Pi to your Wifi AP as a non-AP IEEE 802.11 station. That means (due to the restrictions in the IEEE 802.11 three MAC address model) that you need to NAT between...
by elkberry
Tue Jul 25, 2017 5:11 pm
Forum: Advanced users
Topic: How to run HDMI and Official Raspberry Pi Display (DSI) simu
Replies: 30
Views: 8657

Re: How to run HDMI and Official Raspberry Pi Display (DSI) simu

Yes, of course! I've mixed settings.
by elkberry
Tue Jul 25, 2017 4:37 pm
Forum: Advanced users
Topic: How to run HDMI and Official Raspberry Pi Display (DSI) simu
Replies: 30
Views: 8657

Re: How to run HDMI and Official Raspberry Pi Display (DSI) simu

Prochnow, the problem is that when a DSI display gets detected by the firmware, then it becomes the "primary" display where Linux frame buffer writes to. You may try to add "ignore_lcd=1" to /boot/config.txt, see https://www.raspberrypi.org/documentation/hardware/display/. You can then try to swap t...
by elkberry
Sun Jul 23, 2017 8:31 pm
Forum: Advanced users
Topic: Setting up 2 wifi adaptors
Replies: 4
Views: 773

Re: Setting up 2 wifi adaptors

1. With sufficient power supply (read, 2.5A official wall wart), plugging in the Edimax Wifi adapter will work without any reboots on your 3B. I can even plug them into my Zero W with a 2A USB power supply while it is running, using one of those neat little USB OTG shims, or even an OTG hub. Your mi...
by elkberry
Sat Jul 22, 2017 1:13 pm
Forum: Troubleshooting
Topic: No Global ipv6 address
Replies: 12
Views: 2055

Re: No Global ipv6 address

Link-local addresses get autoconfigured by IPv6 nodes themselves without any router. Windows is a difficult beast when it comes to IPv6: it tries stateful configuration using DHCPv6, even when told not to do so. Maybe you still see old IPv6 IA-NA leases? As a last resort, you can run wireshark and l...
by elkberry
Sat Jul 22, 2017 8:50 am
Forum: Troubleshooting
Topic: No Global ipv6 address
Replies: 12
Views: 2055

Re: No Global ipv6 address

Some home router update in the meantime that may have broken IPv6? I know of some vendors that don't have a clue when it comes to building working IPv6 home routers. Only few vendors are really smart in this field.
by elkberry
Fri Jul 21, 2017 7:36 pm
Forum: Troubleshooting
Topic: No Global ipv6 address
Replies: 12
Views: 2055

Re: No Global ipv6 address

Another place to check is the dhdpcd log. Does "sudo systemctl status -l dhcpcd.service" show any error messages? You may also check whether your router does send proper RAs using the rdisc6 router discovery tool. Install it using "sudo apt-get install ndisc6". Then run "rdisc6 eth0" or "rdisc6 wlan...
by elkberry
Thu Jul 20, 2017 8:10 pm
Forum: Advanced users
Topic: Create OS image NOT clone of SD
Replies: 6
Views: 3237

Re: Create OS image NOT clone of SD

Maybe you want to have a look into https://github.com/billw2/rpi-clone, which is a script for creating the necessary partitions and then rsyncing the mSD to another mSD. To be used on a Pi to copy its running system. I haven't tried to use it on another Linux yet, such as Ubuntu or desktop Debian. C...
by elkberry
Wed Jul 19, 2017 8:39 pm
Forum: Advanced users
Topic: How to run HDMI and Official Raspberry Pi Display (DSI) simu
Replies: 30
Views: 8657

Re: How to run HDMI and Official Raspberry Pi Display (DSI)

The message you get looks fine to me: raspi2raspi has started and is now copying from display 0 (which is the LCD) to display 5 (the HDMI). Did you make sure to run raspi2raspi in the background? Raspi2raspi needs to run constantly, it's not a one-shot tool that immediately finishes. The program wor...
by elkberry
Tue Jul 11, 2017 6:12 am
Forum: Advanced users
Topic: Does the Pi 3 have a quality problem with onboard wifi?
Replies: 12
Views: 2225

Re: Does the Pi 3 have a quality problem with onboard wifi?

To the best of my knowledge, all Pis are factory-tested very thoroughly. The sheer amount of pogo/test pin contact plates are testament to this, never seen so many on a "cheap" board. If I'm not mistaken, these tests also include Wifi and Bluetooth. Besides the Pi, there are more devices in your set...
by elkberry
Mon Jul 10, 2017 5:09 pm
Forum: Networking and servers
Topic: Load sharing multiple 3g connections on raspberry pi
Replies: 3
Views: 1238

Re: Load sharing multiple 3g connections on raspberry pi

What kind of 3G link do you get? I would assume that you get an IP link, but not a data link layer link, unless you booked an data center link, or something similar. So you won't be able to bridge anything here. Next comes the ugly truth of mobile IPv4: you're behind a carrier grade NAT. While not a...
by elkberry
Fri Jul 07, 2017 5:28 pm
Forum: Troubleshooting
Topic: pi zero w test pads for extra USB [solved]
Replies: 21
Views: 11641

Re: pi zero w test pads for extra USB

I'm seeing the same hotplug reboot problems, with the official 2.5A power supply connected to the pwr-in micro USB connector. So a better power supply may not help, unless powering via the extension connector?
by elkberry
Thu Jul 06, 2017 6:06 pm
Forum: Networking and servers
Topic: Raspbian screen mirroring
Replies: 5
Views: 8466

Re: Raspbian screen mirroring

Then you may still look into VNC, this time using an Android VNC server app, and the VNC client on Raspbian. But in any case, I doubt that Bluetooth is the right data link, as it isn't made for the bandwidth that VNC and other applications need. Wireless will be your friend.
by elkberry
Wed Jul 05, 2017 5:16 am
Forum: Networking and servers
Topic: Raspbian screen mirroring
Replies: 5
Views: 8466

Re: Raspbian screen mirroring

Not via Bluetooth, but VNC via Wifi. You can enable the VNC server through raspi-config. VNC clients are available for a wide range of platforms, such as Android, Windows, ...
by elkberry
Tue Jul 04, 2017 8:05 pm
Forum: Networking and servers
Topic: packet filter rule triggering user space app/Blinkt LED?
Replies: 0
Views: 258

packet filter rule triggering user space app/Blinkt LED?

I have turned a Pi Zero W into a brouter that bridges certain traffic between wlan0 and eth0, while routing other traffic (well, it's even killing certain traffic by not routing on purpose). As I have a Blinkt! pHAT lying around with 8 RGB pixel LEDs, I would like to flash the LEDs for certain packe...
by elkberry
Mon Jul 03, 2017 8:42 pm
Forum: Advanced users
Topic: Where is PP1 and PP6 on Raspberry Pi Zero W?
Replies: 7
Views: 3266

Re: Where is PP1 and PP6 on Raspberry Pi Zero W?

"PP#" is short for? Pogo pin? Or am I on the wrong track?
by elkberry
Mon Jul 03, 2017 6:06 am
Forum: Official Foundation Display
Topic: How to disable touch screen?
Replies: 6
Views: 6103

Re: How to disable touch screen?

What about disabling the touch screen as an xinput device? I once had an USB-based shuttle control for video editing and some Ubuntu versions had a bug that made them accept all USB HID devices, so I had to tell the X11 server to not use this particular device. So this might be a way to disable the ...
by elkberry
Sun Jul 02, 2017 6:40 pm
Forum: The MagPi
Topic: #59: Blue Dot
Replies: 6
Views: 3896

Re: #59: Blue Dot

I already did :) and was immediately pleased by the quality of your documentation. I'm now thinking about writing a multi-modal blue dot class that shall encapsulate the slightly tricky code to handle simple presses, long presses, and tap-hold-slide correctly for the same single blue dot. Reminds me...
by elkberry
Sun Jul 02, 2017 4:31 pm
Forum: The MagPi
Topic: #59: Blue Dot
Replies: 6
Views: 3896

#59: Blue Dot

Issue #59: the short article about Blue Dot ... many thanks for making me aware of it, this was right on time! For some time I was in need of a simple remote control to a set of demonstration Pi Zero Ws and 3Bs, which I need to cleanly shut down after a demo. So far, I had to ssh into them. While Py...

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