LinuxQuestions.org
Support LQ: Use code LQ3 and save $3 on Domain Registration
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 08-17-2012, 01:10 PM   #1
qwertyjjj
Senior Member
 
Registered: Jul 2009
Location: UK
Distribution: Cent OS5 with Plesk
Posts: 1,012

Rep: Reputation: 30
public iperf server?


I have used iperf to test speed from a client to my server.
I now need to test the speed from the server to my client but it just times out, presumably no ports are forwarded on my client side router, etc.
Is the a public iperf server I can use instead?

On my client, I go to www.speedtest.net and get 30Mb/s
However, on using iperf to the server I only get 2Mb/s so something is wrong and I don;t know if it is the server or just the ISP connection to the server.
 
Old 08-17-2012, 09:34 PM   #2
unSpawn
Moderator
 
Registered: May 2001
Posts: 29,331
Blog Entries: 55

Rep: Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531
Quote:
Originally Posted by qwertyjjj View Post
it just times out, presumably no ports are forwarded on my client side router
Just temporarily open TCP/UDP 5001 for Iperf?
 
Old 08-18-2012, 04:31 AM   #3
qwertyjjj
Senior Member
 
Registered: Jul 2009
Location: UK
Distribution: Cent OS5 with Plesk
Posts: 1,012

Original Poster
Rep: Reputation: 30
Quote:
Originally Posted by unSpawn View Post
Just temporarily open TCP/UDP 5001 for Iperf?
The port is open on the server but it won't connect when I try to run it t connect it to my client.
I think I would have to forward the port on my client router?
Isn't there a way to test the server speed some other way?

Last edited by qwertyjjj; 08-18-2012 at 06:00 AM.
 
Old 08-18-2012, 06:21 AM   #4
unSpawn
Moderator
 
Registered: May 2001
Posts: 29,331
Blog Entries: 55

Rep: Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531Reputation: 3531
Quote:
Originally Posted by qwertyjjj View Post
I think I would have to forward the port on my client router?
Yes.


Quote:
Originally Posted by qwertyjjj View Post
Is the a public iperf server I can use instead?
I found references to only three Iperf servers listed (iperf.wiscnet.net, web100.pnw-gigapop.net, lss.rutgers.edu) and I haven't tested to see if they're still alive else maybe search the iperf-users or NANOG mailing list for public ones.


Quote:
Originally Posted by qwertyjjj View Post
Isn't there a way to test the server speed some other way?
You could search the 'net for public web100-enabled Network Diagnostic Tool (NDT*) or BWCTL servers. Enough leads I'd say.
 
Old 08-18-2012, 06:48 AM   #5
qwertyjjj
Senior Member
 
Registered: Jul 2009
Location: UK
Distribution: Cent OS5 with Plesk
Posts: 1,012

Original Poster
Rep: Reputation: 30
Hmm, seems to time out even though I can ping it

[root@jason ~]# iperf -c iperf.acd.net -P 10 -t 240
connect failed: Connection timed out
connect failed: Connection timed out
connect failed: Connection timed out
connect failed: Connection timed out
connect failed: Connection timed out
connect failed: Connection timed out
connect failed: Connection timed out
connect failed: Connection timed out
connect failed: Connection timed out
connect failed: Connection timed out
[root@jason ~]# ping iperf.acd.net
PING iperf.acd.net (69.63.226.198) 56(84) bytes of data.
64 bytes from 69-63-226-198.static.acd.net (69.63.226.198): icmp_seq=1 ttl=53 time=115 ms
64 bytes from 69-63-226-198.static.acd.net (69.63.226.198): icmp_seq=2 ttl=53 time=114 ms
64 bytes from 69-63-226-198.static.acd.net (69.63.226.198): icmp_seq=3 ttl=53 time=114 ms
^C
--- iperf.acd.net ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2743ms
rtt min/avg/max/mdev = 114.568/114.902/115.411/0.535 ms
[root@jason ~]#
 
Old 05-25-2014, 06:51 PM   #6
JuriM
LQ Newbie
 
Registered: May 2014
Posts: 1

Rep: Reputation: Disabled
You can Use This server

iperf -c iperf.scottlinux.com -P 10
------------------------------------------------------------
Client connecting to iperf.scottlinux.com, TCP port 5001
TCP window size: 23.5 KByte (default)
------------------------------------------------------------
[ 3] local 188.138.124.175 port 41385 connected with 173.230.156.66 port 5001
[ 6] local 188.138.124.175 port 41376 connected with 173.230.156.66 port 5001
[ 7] local 188.138.124.175 port 41377 connected with 173.230.156.66 port 5001
[ 4] local 188.138.124.175 port 41378 connected with 173.230.156.66 port 5001
[ 11] local 188.138.124.175 port 41379 connected with 173.230.156.66 port 5001
[ 8] local 188.138.124.175 port 41380 connected with 173.230.156.66 port 5001
[ 5] local 188.138.124.175 port 41382 connected with 173.230.156.66 port 5001
[ 10] local 188.138.124.175 port 41381 connected with 173.230.156.66 port 5001
[ 9] local 188.138.124.175 port 41383 connected with 173.230.156.66 port 5001
[ 12] local 188.138.124.175 port 41384 connected with 173.230.156.66 port 5001
[ ID] Interval Transfer Bandwidth
[ 6] 0.0- 9.7 sec 29.1 MBytes 25.3 Mbits/sec
[ 10] 0.0- 9.7 sec 4.12 MBytes 3.56 Mbits/sec
[ 11] 0.0- 9.7 sec 12.9 MBytes 11.1 Mbits/sec
[ 5] 0.0- 9.8 sec 7.38 MBytes 6.32 Mbits/sec
[ 4] 0.0- 9.9 sec 12.6 MBytes 10.7 Mbits/sec
[ 8] 0.0-10.0 sec 11.1 MBytes 9.31 Mbits/sec
[ 9] 0.0-10.3 sec 4.62 MBytes 3.78 Mbits/sec
[ 7] 0.0-10.4 sec 18.5 MBytes 14.9 Mbits/sec
[ 12] 0.0-10.5 sec 4.88 MBytes 3.91 Mbits/sec
[ 3] 0.0-10.8 sec 18.1 MBytes 14.0 Mbits/sec
[SUM] 0.0-10.8 sec 123 MBytes 95.6 Mbits/sec
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
Help regarding iperf ssenthilkumar Linux - Software 2 06-20-2009 01:45 AM
1 public server, 1 private server with a Cisco ASA5505 inbetween, is this hard to do? abefroman Linux - Networking 12 04-10-2008 10:39 AM
VPN Server: need help setting up a public server accessible by win xp clients hamish Linux - Networking 6 09-20-2006 03:39 AM
iperf vishamr2000 Linux - Networking 4 09-03-2006 02:12 PM
iperf vishamr2000 Linux - Networking 0 11-25-2005 08:15 AM


All times are GMT -5. The time now is 02:50 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration