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Say I wish to have the interface eth0 to have a very low bandwidth. Is it possible?
As may be evident from the question, I am trying to simulate a network with varying bandwidths.
Note: I am using VirtualBox running Ubuntu to simulate the hosts.
There is a program in the Ubuntu repos that will throttle bandwidth on a process-by-process basis. It's called trickle. Here's another answer that deals with trickle. Hope that helps with your issue!
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I have got telnet server running on a bsd target. I want to connect to this target from multiple other machines. Surprisingly it does not allow more connections.
I checked why and found it is not listening(listen) in a loop. So, I kinda fixed it. But I was wondering is there any specific reason why telnetd code is kept with single connection at a time? (I am allowed to connect to telnetd server from only one client for a particular port.)
(I know telnet is not a safe option. But I am having just fun on small embedded platform and getting things working is more imp than security at this moment.)
Thanks
Telnet is supposed to be launched by inetd. You need to configure inetd to do the listening for you.
The wikipedia article that I linked to explains how to do that.
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I want to connect ubuntu virtual boxes with each other on a network. I want to use hadoop on it. So i need to put them in a network. It requires ssh to communicate. Can anyone help regarding it.
The easiest way is to change your adapter to "Bridged networking" instead of "Nat", the default. This way the guest system will get an ip on your local network and you can connect directly to it.
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Much is made of the CAP trade-off for data storage where conflicts can be introduced if there is a network partition.
My question is there any evidence that this is a problem that arises with any significant frequency in modern cloud IAAS services e.g.; EC2, Azure, Rackspace.
Is it a problem which, despite being a theoretical roadblock in constructing idealised distributed systems is, in fact, a non-issue for all practical concerns?
Has anyone experienced a network partition within one of these systems (within a single data-centre?) If so would you be willing to share any details?
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I want to simulate three computers, everyone behind a different NAT, in order to test hole punching.
I want a server that its address is know to the other two VMs, but the two VMs to be in separate NATs.
Any ideas on how to configure this in workstation 7 ?
Thanks :)
Honestly, if your three VMs are each under separate NATs and one VM has a public ipv4 address, then there is nothing specific you need to configure within workstation 7. You are ready to go to test hole punching.
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Since I am trying to send some packets within my home from one PC to another PC , I am writing a program but I think I have a problem. Can you please tell me how I can listen the network within the house ? ( I am using windows )
Thank you all
Here's a video series on Wireshark basics, they should help you get started :
Wireshark basics 1
Wireshark basics 2
Wireshark basics 3
There are many other videos on that website about Wireshark (I don't want to spam SO by linking to them)