Displaying 20 results from an estimated 6000 matches similar to: "Pulling stalls before 52MB (works via netcat)"
2012 Mar 14
2
testing a udp socket with netcat
i've this udp daemon which is waiting for an incoming udp datagram. now
i want test this daemon for random garbage to test how it behaves. My
udp daemon is running because its shows on netstat. problem is if i
issue following command for putting udp datagram :
$nc -uvvz <host> <port>
it does not output any thing. i have straced the udp daemon. which does
not returns from recv()
2015 Apr 13
3
[Compile Issue] netcat.c on HP NonStop
Greetings,
I am porting the openssh-portable 6.8 release to the HP NonStop (NSE)
platform. Prior versions were no real problem, with minor tweeks. However,
with the inclusion of regress/netcat.c, which depends on arpa/telnet.h, we
have an issue. Unfortunately, the platform does not have this file, nor
anything like it - telnet is done rather differently. We do have a version
of netcat (0.7.1
2012 Dec 14
12
any more efficient way to transfer snapshot between two hosts than ssh tunnel?
Assuming in a secure and trusted env, we want to get the maximum transfer speed without the overhead from ssh.
Thanks.
Fred
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2005 Jul 28
1
People using the HPN patch...
If anyone is using the HPN patch on a high performance link I was
wondering if you could take a moment to answer a quick question
Are you seeing vastly different performance between scp throughput and
sftp throughput? On my test network (pittsburgh to chicago) I'm getting
26MB/s with scp (arcfour) and only 6.4MB/s with sftp (arcfour). We just
started looking into this but it woudl be nice
2014 Jul 24
1
GNU netcat in make tests
Hello everybody,
regression tests do use `nc -U` since commit 0e4e955 to test for Unix domain
socket forwarding. This fails on systems that have GNU netcat installed as
that does not support Unix domain sockets. In fact it does not understand the
`-U` option at all. What way to go there?
--
main(a){char*c=/* Schoene Gruesse */"B?IJj;MEH"
2011 Feb 06
3
OpenSSH could be faster...then why don't they path it??
https://www.psc.edu/networking/projects/hpn-ssh/hpn-v-ssh-tput.jpg
"SCP and the underlying SSH2 protocol implementation in OpenSSH is network performance limited by statically defined internal flow control buffers. These buffers often end up acting as a bottleneck for network throughput of SCP, especially on long and high bandwith network links. Modifying the ssh code to allow the buffers
2005 Jun 17
3
New Set of High Performance Networking Patches Available
http://www.psc.edu/networking/projects/hpn-ssh/
Mike Stevens and I just released a new set of high performance
networking patches for OpenSSH 3.9p1, 4.0p1, and 4.1p1. These patches
will provide the same set of functionality across all 3 revisions. New
functionality includes
1) HPN performance even without both sides of the connection being HPN
enabled. As long as the bulk data flow is in the
2010 Jul 19
22
zfs send to remote any ideas for a faster way than ssh?
I''ve tried ssh blowfish and scp arcfour. both are CPU limited long before the 10g link is.
I''vw also tried mbuffer, but I get broken pipe errors part way through the transfer.
I''m open to ideas for faster ways to to either zfs send directly or through a compressed file of the zfs send output.
For the moment I;
zfs send > pigz
scp arcfour the file gz file to the
2006 May 19
1
New HPN Patch Released
The HPN12 patch available from
http://www.psc.edu/networking/projects/hpn-ssh addresses performance
issues with bulk data transfer over high bandwidth delay paths. By
adjusting internal flow control buffers to better fit the outstanding
data capacity of the path significant improvements in bulk data
throughput performance are achieved.
In other words, transfers over the internet are a lot
2009 Feb 17
1
Support for merging LPK and hpn-ssh into mainline openssh?
Hello
Are there plans to merge the hpn-ssh
(http://www.psc.edu/networking/projects/hpn-ssh/) and the LPK
(http://code.google.com/p/openssh-lpk/) into the mainline openssh.
Adding lpk has been logged as a bug in bugzilla as
They are two patches that I always apply as the performance boost from
hpn-ssh is substantial to say the least, and centralisation of the
authorized_keys into a LDAP server
2007 May 07
1
HPN SSH
Hello,
I know this has come up before; but is the HPN patch (or elements thereof)
currently being considered for integration in to the OpenSSH code base? Are
there pending issues (buffer management, none cipher, etc) which still need
to be addressed?
We have been using HPN-SSH for over a year now, and like others, have
observed significant performance improvement over standard OpenSSH. I can
2005 Sep 08
1
HPN Patch for OpenSSH 4.2p1 Available
Howdy,
As a note, we now have HPN patch for OpenSSH 4.2 at
http://www.psc.edu/networking/projects/hpn-ssh/
Its still part of the last set of patches (HPN11) so there aren't any
additional changes in the code. It patches, configures, compiles, and
passes make tests without a problem. I've not done extensive testing for
this version of openssh but I don't foresee any problems.
I
2015 Aug 11
2
rsync stuck at +- 50 MB/s, cp and scp are +- 200 MB/s
Hi,
I tried different encryptions like arc four, but always with the same result. BTW: googling shows some similar questions and they are stuck on set same speed +-.
But non of that solutions helped me.
/G?tz
> Am 11.08.2015 um 12:14 schrieb Eero Volotinen <eero.volotinen at iki.fi>:
>
> Usually problem in encryption.
>
> try cipher arcfour or apply hpn patches to
2013 Jan 02
1
ssh / scp slow on 10GBE
Hello list,
right now SSH Tunnel / scp is reaches just around 76Mb/s on my E5 Xeon
using AES-NI but openssl reaches around 600-700Mb/s using 128aes-cbc cipher.
As far as i understand http://www.psc.edu/index.php/hpn-ssh this is due
to very small buffers in ssh / scp.
Is there any work on this? Like autotuning the buffer size? Are there
plans to integrate the hpn patches?
Greets,
Stefan
2008 Nov 20
0
Megacli, NetCat, and Virt-Install Test Suites Released
Triple Release Day!
James Wan, from the Solaris Quality Engineering group, has released the Megacli
test suite.
More information on Megacli test suite can be found at:
http://opensolaris.org/os/community/storage/tests/
http://src.opensolaris.org/source/xref/test/ontest-stc2/src/suites/storage/megacli/README
http://src.opensolaris.org/source/xref/test/ontest-stc2/src/suites/storage/megacli/
2006 Mar 25
1
High Performance SSH/SCP - HPN-SSH when?
Hi,
http://www.psc.edu/networking/projects/hpn-ssh/
Clearly, the HPN patches significantly boost throughput performance.
This enhancement is entirely from tuning the SSH buffer sizes.
Alex Tavcar
2015 Feb 28
3
SAP-2015-3-1 issues
BSD/OS issues
with 1.0.2a dev
make tests
[ -d `pwd`/regress ] || mkdir -p `pwd`/regress
[ -d `pwd`/regress/unittests ] || mkdir -p `pwd`/regress/unittests
[ -d `pwd`/regress/unittests/test_helper ] || mkdir -p `pwd`/regress/unittests/test_helper
[ -d `pwd`/regress/unittests/sshbuf ] || mkdir -p `pwd`/regress/unittests/sshbuf
[ -d `pwd`/regress/unittests/sshkey ] || mkdir -p
2007 Nov 09
1
HPN SSH
Hello,
I know that this has been asked before, just wanted to mention that I,
too, would like to see the HPN SSH functionality incorporated in the
standard OpenSSH.
Would there be technical disadvantages integrating the changes?
I know we are all pretty busy, but I would certainly spend time to help,
e.g. with testing, documentation, etc.
Cheers
--pwo
--
Peter W. Osel - http://pwo.de/ - pwo
2010 May 20
13
send/recv over ssh
I know i''m probably doing something REALLY stupid.....but for some reason i
can''t get send/recv to work over ssh. I just built a new media server and
i''d like to move a few filesystem from my old server to my new server but
for some reason i keep getting strange errors...
At first i''d see something like this:
pfexec: can''t get real path of
2015 Feb 25
2
Call for testing: OpenSSH 6.8
On 24/02/15 21:56, Tim Rice wrote:
> On Wed, 25 Feb 2015, Damien Miller wrote:
>
> | On Tue, 24 Feb 2015, Tom G. Christensen wrote:
> |
> | > I've switched to HEAD in the git repo and it now builds on Solaris
> | > 2.6, 7, 8 and 9 but the testsuite still cannot be built due to the
> | > missing <err.h>.
>
> The err.h issue is fixes but there still