Questions tagged [broadcast]

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Looking for IP Addresses of devices connected

So the problem which I got was that I was shown a HiL setup with a lot of KVM switches and other computers connected. I was asked to check if say device A was working or not. By working I mean if it ...
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socat does not honor sourceport option

I am trying to send a udp packet from a specific port: $ echo hello | socat - UDP-DATAGRAM:192.168.1.255:11111,broadcast,sourceport=22222 But a random port is used instead: # tcpdump -vvvv -ttttt -...
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What are all the IPs that I see in the result of `ip a`

So I issued a command ip a which list all the IP addresses. However I don't understand what all the other Ip addresses and details it printed. In this output I just understood that inet W.X.Y.Z/20 brd ...
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Is it possible to move broadcast and local routes in the local routing table to custom routing table without creating a name space?

I have a host with two interfaces. ens4 is mgmnt, ens3 is another network. # ip -br a | sort ens1 DOWN ens2 DOWN ens3 UP 172.16.10.1 ens4 UP 192.168.1.100 # ...
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How can I imitate Mac-style network shares, separate 'hostname Remote Login' & 'hostname File Sharing' display on Thunar and other file managers?

When viewing a local network in Thunar or other file managers: hostname (Remote Login) hostname (File Sharing) HOSTNAME ANOTHERSAMBAHOST YETANOTHERSMB The Samba hosts show all caps without ...
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My computer resolves itself to 127.0.0.1 instead of its outer ip

I recently installed dnsmasq in two of my machines. The service works all right but the trouble is that when consulted they return only their loopback ip. @Machina ~]$ nslookup continua continua ...
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1 answer
311 views

Raspbian - Permission Denied when broadcasting message

I am using the Elixir/ Erlang package on raspbian to try and build a simple UDP send/receive app. For information, I am using this tutorial. When I try to send the UDP packet to the network on the ...
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How to use `wakeonlan` with a VPN active?

Today, I've started using the PIA (Private Internet Access - Version 2.9) VPN service via their native application to set things up, everything works like a charm so far, apart wakeonlan some-mac-...
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3 votes
1 answer
53 views

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 ...
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CUPS and broadcast on Wifi

My CUPS server (Debian 10) propagates its shared printers on the switch it is connected to, to the PCs (Debian 9 & 10) connected to that same switch. On the other hand, the propagation is not done ...
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Is there a way in linux to increase the MTU size of a Broadcast interface on linux to be able to send bigger UDP packets?

I am broadcasting UDP packets on a Bcast:192.168.1.255 of a wlan0 interface on linux. Its working well and I am receiving an UDP client written on another machine. I learnt that I cannot send a UDP ...
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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 ...
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How to show popup after user connect to my WiFi hotspot? [duplicate]

So we know we can use create New WiFi network option under wifi menu in Linux desktop to broadcast the WiFi out with custom name&passowrd like the picture below But is it possible to throw a ...
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3 votes
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623 views

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 ...
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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 ...
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2 answers
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Configure Broadcast domain in Linux

In Linux, how can I see all MAC addresses present in a broadcast domain, and how can I configure a broadcast domain?
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Updated Linux Alternative to Stereo Mix broadcasting?

I am quite certain this question has been asked before. However, seeing as many of the distro's have come out with Major updates, & LTS Distros as well. I wonder if anyone has found a more ...
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2 answers
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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 ...
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How to avoid receiving warning message from a mount system

I asked similar question in superuser, no satisfying answer. Re-post here with some update. I mount a remote host to my system during debug because the source code is on that host, but after I do the ...
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6 votes
0 answers
2k views

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 ...
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6 votes
2 answers
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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 ...
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Samba local master browser cannot be found via broadcast

I have a Samba server (CentOS 6.5, Samba 3.6.9) that acts as a local master browser for a workgroup. I issued $ setenforce 0 $ service iptables stop to disable SELinux and get rid of the firewall. ...
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2 votes
0 answers
2k views

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 ...
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3 votes
1 answer
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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 ...
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2 votes
3 answers
288 views

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 ...
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2 votes
1 answer
2k views

What is the difference between red5 RC1 and RC2?

What is the difference between the red5 versions RC1 and RC2 ? and what does RC mean?
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5 votes
2 answers
4k views

Changing shutdown broadcast message

Is it possible to change the default message broadcasted by shutdown to something else?
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0 answers
382 views

How to make Network alive but speed low, slow for upload, download?

I have own application written (Python, Java) which does upload/download for streaming. Now in my local office network and home network setup i can't simulate slow/low latency network (as a result i ...
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8 votes
5 answers
14k views

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 ...
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3 votes
2 answers
2k views

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 ...
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4 votes
1 answer
3k views

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 ...
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