Jochen.Willeke at wincor-nixdorf
Jul 2, 2009, 12:11 AM
Post #4 of 4
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Hi,
sorry for the late reply. But that was the point.
When using hosts.equiv-security-style the sourceport will be from 1023 - downwards.
Regards and thanks
Jochen
-----Original Message-----
From: Funke, Stefan [mailto:Stefan.Funke[at]netapp.com]
Sent: Tuesday, June 23, 2009 10:58 AM
To: Willeke, Jochen; toasters[at]mathworks.com
Subject: RE: Netapp SDK -- HTTP Port 1023
Hi Jochen!
I've been playing with manage-ontap-SDK-3.5P1 to test that. I used modified perl samples (manage-ontap-sdk-3.5P1/src/sample/perl) to monitor ports used while connecting to the storage controller and never got a source port <1023.
However, if you look at the libraries you'll find something like:
#
# If we are being asked to use a reserved port (we
# are doing hosts.equiv authentication), then we search to
# find an available port number below 1024.
#
if ( $self->get_style() eq "HOSTS" ) {
my $lowport;
for ($lowport=1023; $lowport > 0; $lowport--) {
$thisport=pack($sockaddr, &AF_INET,$lowport);
if (bind(S,$thisport)) {
last;
}
So I guess you are using hosts.equiv based authentication against the storage controller. To ensure that only root can authenticate as a 'host', ports <1024 are a good way to enforce that. Switching to a user/password authentication model could be a fast workaround. Changing the background functions of the API could be another way.
-Stefan
-----Original Message-----
From: Willeke, Jochen [mailto:Jochen.Willeke[at]wincor-nixdorf.com]
Sent: 22 June 2009 14:59
To: toasters[at]mathworks.com
Subject: Netapp SDK -- HTTP Port 1023
Hi toasters,
we are in the need to use the netapp SDK through a firewall. While
trying this we found out, that the SDK uses TCP Port 1023 as the source
port. Sadly our firewall defines HTTP source-ports from 1024-upward and
therefore denies the transit :(
Has anybody came across this issue and has an idea if this behavior can
be changed?
Best Regards and thanks in advance
Jochen Willeke
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WINCOR NIXDORF International GmbH
Sitz der Gesellschaft: Paderborn
Registergericht Paderborn HRB 3507
Geschäftsführer: Eckard Heidloff (Vorsitzender), Stefan Auerbach, Dr. Jürgen Wunram
Vorsitzender des Aufsichtsrats: Karl-Heinz Stiller
Steuernummer: 339/5884/0020 - Ust-ID Nr.: DE812927716 - WEEE-Reg.-Nr. DE44477193
Diese E-Mail enthält vertrauliche Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser E-Mail ist nicht gestattet.
This e-mail may contain confidential information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is strictly forbidden.
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