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I am trying to setup an iperf test but the client side keeps getting connection refused message. 

Server side:
ubuntu@webserver1:~$ iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
ubuntu@webserver1:~$


Client side: 
test@ubuntu:~$ sudo iperf -c 192.168.1.2
connect failed: Connection refused
test@ubuntu:~$

The command I am using is exactly like this guide here: http://openmaniak.com/iperf.php

and I saw some previous iperf questions, but they do not provide a solution on what's wrong here: iperf connect failed: Connection refused https://serverfault.com/questions/643420/network-connectivity-reachability-between-nodes-located-in-the-same-lan-using Iperf bidirectional bandwidth measurement

I have a vlan id setup for my network, and both my server and client are on the same vlan id, and they can ping each other. So I don't think the it's cause by a vlan id. Its not the firewall either. ufw is disabled. I am running ubuntu server 14 on both client and server.

thanks everyone

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D.Zou
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  • You are starting the server first aren't you? The way you've shown the commands implies that you're trying to start the client first (which won't work). – Paul Haldane Dec 06 '14 at 13:24
  • hey @Paul Haldane, I am starting the server first, I copied the order wrong, sorry for the confusion – D.Zou Dec 06 '14 at 19:20

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