Broadcast your shell thru ports 5000, 5001, 5002 ...

script -qf | tee >(nc -kl 5000) >(nc -kl 5001) >(nc -kl 5002)
run 'nc yourip 5000', 'nc yourip 5001' or 'nc yourip 5002' elsewhere will produce an exact same mirror of your shell. This is handy when you want to show someone else some amazing stuff in your shell without giving them control over it.

41
By: clvv
2010-10-11 07:55:30

3 Alternatives + Submit Alt

What Others Think

nc: invalid option -- q
DaveQB · 718 weeks and 2 days ago
nc-1.84-10.fc6.x86_64 CentOS 5
DaveQB · 718 weeks and 2 days ago
Looks like CentOS' nc doesn't support -q option, simply remove the -q0 argument, it will still work, but nc will still be running in background even if your terminated your broadcast session.
clvv · 718 weeks and 2 days ago
mkfifo /tmp/fifo;(nc -q0 -l 5000 < /tmp/fifo > /dev/null &);script -f /tmp/fifo Is a little better, because nc -l will echo text received by client. So in my modified script STOUT is redirecting to /dev/null. no more echo will be shown
anonjoe · 718 weeks ago
mkfifo /tmp/fifo;(nc -q0 -k -l 5000 < /tmp/fifo > /dev/null &);script -f /tmp/fifo add -k to nc, so your command will stay online even when your client will disconnect
anonjoe · 718 weeks ago
A simpler way: script -f >(nc -l 5000)
dstahlke · 718 weeks ago
why do you all forget the -p before the 5000 ??? I took me so long to figure that out, couldn't make it work before until I put the -p: mkfifo /tmp/fifo;(nc -q0 -l -p 5000 < /tmp/fifo &);script -f /tmp/fifo mkfifo /tmp/fifo;(nc -q0 -k -l -p 5000 < /tmp/fifo > /dev/null &);script -f /tmp/fifo script -f >(nc -l -p 5000) Great tip by the way, now I can vote for it and make it as favorite.
nickwe · 716 weeks and 6 days ago
doesn't work for me unless I change this: nc -l 5000 ...to this: nc -l -p 5000 (tested on ubuntu 10 LTS and debian 5
linuxrawkstar · 716 weeks and 6 days ago
doesn't work for me unless I change this: nc -l 5000 ...to this: nc -l -p 5000 (tested on ubuntu 10 LTS and debian 5
linuxrawkstar · 716 weeks and 6 days ago
Is there an extra option which will allow multiple clients listening to your broadcast?
alperyilmaz · 693 weeks and 4 days ago
I think the solution is "socat" but couldn't figure out the options..
alperyilmaz · 693 weeks and 4 days ago
@alperyilmaz I haven't figure out a way to do this only using common utilities yet. But here is a quick work around: script -qf | tee >(nc -kl 5000) >(nc -kl 5001) >(nc -kl 5002)
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