Questions tagged [broadcast]
35 questions
8
votes
5 answers
Transform a UDP unicast packet into a broadcast?
We need to wake-up some computers on our internal LAN, from the Internet.
We have a somewhat closed router, with very few ways to configure it.
I'd like to use netfilter (iptables) to do this because it doesn't involve a daemon or similar, but other…
Gregory MOUSSAT
- 1,098
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6
votes
1 answer
How to prevent kernel or any broadcast messages from flooding the TTYs?
Because of some hot-plugging issue, similar to what talked of here, the TTY displays show a continuous stream of messages (which are also logged in the /var/log directory). Every text I key in flows away visually, but it does take the inputs (I can…
rusty
- 1,841
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6
votes
2 answers
Broadcast messages don't appear on gnome-terminal, but appear on xterm
I'm curious about the behavior of broadcast messages by
$ sudo wall myfile
the message from myfile appears on all /dev/ttyN devices (the ones to which I can switch by pressing Ctrl+Alt+fN), it also appears on the xterm windows I have opened, but it…
Dmitry Frank
- 2,668
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5
votes
2 answers
Changing shutdown broadcast message
Is it possible to change the default message broadcasted by shutdown to something else?
talles
- 155
- 1
- 5
4
votes
1 answer
Why isn't my application receiving broadcast packets?
I have written a Qt application that listens for UDP broadcast packets on the network interface p2p1. I have installed the application in Fedora 17 i386 in a VirtualBox VM. For some reason, the application is not receiving any broadcast packets that…
Nathan Osman
- 6,170
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4
votes
1 answer
Responses from broadcast 255.255.255.255
On one particular box, i cannot get responses to broadcasted messages to (255.255.255.255). For example
Sending DHCPDISCOVER
DHCPREQUEST on wlan0 to 255.255.255.255
And see even responses from DHCP server on this network
DHCPOFFER from…
Tamir
- 161
- 7
3
votes
1 answer
Send large file to multiple machines on lan with slow network cards
I have a large file(s) (say 10GB) that I want to transfer from one machine to many (say 50) identical machines connected to LAN.
It makes sense to me that transfering like this:
/--> 4 ---
/
1 -----> 2 -----> 5 ---
\ …
Radost
- 131
- 3
3
votes
2 answers
Capture and broadcast video from web cam
I have server on Debian 6, without Desktop Environment and I have simple web camera. Web camera is defined like /dev/video0, so I can use cat /dev/video0 > ~/photo to get image from it (of course this is not correct way :))
I want to capture,…
atomAltera
- 267
- 4
- 12
3
votes
0 answers
UDP Multicast not seen on PiZero with Raspbian
Looking for help troubleshooting my missing UDP Multicasts.
Some background... So I finally got an Amazon Echo and was playing with fauxmo on my PiZero to see if Alexa could find my device, but she couldn't. :(
I fired up Wireshark (on my…
pedwards
- 131
- 2
3
votes
2 answers
How do I send a notification to all active shells, like shutdown does?
You know, I was just there, doing my things, when suddenly a terrible Broadcast message appeared!
fiatjaf@mises ~> sl
fiatjaf@mises ~> ls dotfiles/
urxvt
vim/
vimrc
fiatjaf@mises ~> cowsay good morning
______________
< good morning >
…
fiatjaf
- 158
- 11
3
votes
1 answer
Share/Stream live video on LAN network - raspberry
As in the question, I need to share a video in lan by broadcasting.
From server, I've tried with:
avconv -i video.mov -c:v libx264 -f mpegts udp://[destinationIP]:1234
From client I can play video with:
omxplayer udp://serverIP:1234
But this…
Luca Davanzo
- 313
- 1
- 5
- 14
2
votes
0 answers
How does the Linux 3.10.105 kernel handle Ethernet broadcast storms?
In my embedded Linux device I want to find the source of Ethernet broadcast storm and flash the led once I detected the ethernet broadcast storm.
Does Linux kernel handle broadcast storms?
Is there any kernel device driver API's that I can use to…
danglingpointer
- 209
- 1
- 11
2
votes
1 answer
How to disable broadcasting on an IP-less Linux NIC
Linux system with two NICs.
eth0 connected to Co. LAN. DHCP configured. It is the main network
connection.
eth1 point-to-point connected to a network analyzer. No
IP on this interface.
Linux application sending L2 packets on eth1.
The network…
papy muzo
- 21
- 1
- 2
2
votes
0 answers
How to install Liquidsoap & Airtime on CentOS 6.5?
That's the question, I already try some tutorials but I don't get any one to works
What repositories are needed? Is there any repo than I can add than have it to install it directly? Is there any way to avoid using Debian Box?
I want to keep the…
user57129
- 121
- 3
2
votes
3 answers
Broadcast or send machine readable code to ssh clients
Here's an interesting situation. I have:
A Linux box that is a motion sensor and can execute command line commands upon receiving a motion event (see the Linux motion app).
Another Linux box that (I would like to) dedicated to additional processing…
Uzumaki Naruto
- 157
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- 7