Re: SSL API Issues after latest CUM PTFs on V7R3

Of course they can figure it our Brad. The developers probably know it is needed.

BUT - if they are not hearing from LUG members that a function is needed - the only support the developers have for persuading their management to spend the $s is when they see votes from US.

You know what you want - it would only take you 5 minutes. I'd do it if I knew what I was talking about!


Jon

On Oct 28, 2020, at 9:35 AM, Brad Stone <bvstone@xxxxxxxxx> wrote:

I thought about it... but I think IBM should be able to figure that out
themselves. Or maybe there is something more to it that I'm not aware of.

SSL has been a slight headache for years on the IBM i, but I only see it
getting worse as the complexities grow.

On Tue, Oct 27, 2020 at 2:46 PM Jon Paris <jon.paris@xxxxxxxxxxxxxx> wrote:

Sounds like Brad should be writing up an RFE! Seems reasonable to me that
it should be able to figure out to drop back to an older level without
being coerced.

On Oct 27, 2020, at 3:19 PM, Steinmetz, Paul via WEB400 <

web400@xxxxxxxxxxxxxxxxxx> wrote:

Brad,

I'm not sure of all the under lying changes, but I had a few issues,

most was working at TLSv1.3 or TLSv1.2.

Here is the link.

https://www.ibm.com/support/pages/ibm-i-73-system-tls-support-transport-layer-security-version-13-tlsv13

Paul



-----Original Message-----
From: WEB400 <web400-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Brad Stone
Sent: Tuesday, October 27, 2020 3:11 PM
To: Web Enabling the IBM i (AS/400 and iSeries) <

web400@xxxxxxxxxxxxxxxxxx>

Subject: Re: [WEB400] SSL API Issues after latest CUM PTFs on V7R3

But shouldn't the system, when connecting to another server, see that

they are using 1.2 and use that? Or does the latest CUM turn off anything
except 1.3?

It's similar to another issue I had with a client. They were getting an

error connecting to a server. We got a list of all the ciphers the server
had available and we had most of them matched on the IBM i, minus a few
older ciphers. But we still had to enable a couple older ciphers manually
to make it work.

You'd think with a choice of 10 or more that match the system could

chose to use one of those instead of the old outdated cipher the server had
(which was there mainly for older systems).

On Tue, Oct 27, 2020 at 12:36 PM Steinmetz, Paul via WEB400 <

web400@xxxxxxxxxxxxxxxxxx> wrote:

Brad,

I had to do the same.
IBM has a tech doc on this.
It actually disables TLSV1.3, which Is the new default with the latest
CUME PTFs.
Not all our network devices support TLSV1.3, thus had to revert to
previous settings.
*TLSV1.2
*TLSV1.1
*TLSV1

TLSv1.3 could a simple change for some, but for us it will a while.

Paul

-----Original Message-----
From: WEB400 <web400-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Brad
Stone
Sent: Tuesday, October 27, 2020 1:31 PM
To: Web Enabling the IBM i (AS/400 and iSeries)
<web400@xxxxxxxxxxxxxxxxxx

Subject: Re: [WEB400] SSL API Issues after latest CUM PTFs on V7R3

________________________________
CAUTION: This email originated from outside of the PENCOR network. Do
not click on any links or open attachments unless the sender is known,
and the content is verified as safe.
________________________________

Well, my client had a call with IBM.
IBM had them change the system value QSSLPCL from *OPSYS to a list:
*TLSV1.2
*TLSV1.1
*TLSV1

And that seemed to fix their specific issue. Doesn't make sense
(well, it does). I have a feeling their trading partner was using
older version of TLS. That should have been easy to tell. Seems like

a bandaid fix.

On Tue, Oct 6, 2020 at 10:09 AM Gerald Magnuson <
gmagqcy.midrange@xxxxxxxxx>
wrote:

Sorry, I should clarify , we use HTTPAPI here.

On Tue, Oct 6, 2020 at 9:40 AM Brad Stone <bvstone@xxxxxxxxx> wrote:

I'd sure love to be able to test it, though. Then I could figure
out if

I

needed to just retry the handshake, or if I need to totally
restart the connection. But the trace from the customer did show
that the SSL handshake wasn't working properly...

On Tue, Oct 6, 2020 at 9:20 AM Charles Wilt
<charles.wilt@xxxxxxxxx>
wrote:

I'd agree that there should be a number of retries.

Charles

On Tue, Oct 6, 2020 at 7:05 AM Brad Stone <bvstone@xxxxxxxxx> wrote:

Thanks for following up. I haven't heard from my customers
yet

either

(which I normally take as a good thing).

I wonder if in our applications if a handshake fails we should
have a default number of retries. The only issue is I can't
recreate the

issue

on

my end to test with.

On Tue, Oct 6, 2020 at 7:59 AM Gerald Magnuson <

gmagqcy.midrange@xxxxxxxxx

wrote:

The PTF (MF67570) didn't fix it.

On Mon, Oct 5, 2020 at 1:48 PM Brad Stone
<bvstone@xxxxxxxxx>

wrote:

Keep up updated on your issues and if the PTF IBM suggest
solves

the

issue.

On Mon, Oct 5, 2020 at 1:43 PM Gerald Magnuson <

gmagqcy.midrange@xxxxxxxxx

wrote:

Also, not only are we getting the TLSv1.2 Peer not

recognized...

errors

when connecting to our internal servers (HAProxy), were

have

been

getting that -16 error when we try to connect to one of
our

VANs

(COVISINT).

On Mon, Oct 5, 2020 at 1:22 PM Gerald Magnuson <

gmagqcy.midrange@xxxxxxxxx

wrote:

We have had these errors since we went to 7.4 on Labor Day.

After

changing ciphers and putting on all the latest PTF
groups,

we

now

have

this very strange symptom: these errors "(GSKit) Peer

not

recognized

or

badly formatted message received." are only happening

between

the

hours

of 6am through 10am (we may get 1 or 2 outside of this
time

frame).

I have just installed that ptf (MF67593 - 7.4
MF67570), so

let's

see

what

tomorrow brings.

On Thu, Oct 1, 2020 at 4:07 PM Brad Stone
<bvstone@xxxxxxxxx

wrote:

Info from IBM that a customer got:

-APAR MA48442 (“OSP-OTHER-UNPRED SYSTEM TLS FAILS
TLSV1.2

SERVER

HELLO

WITHOUT EXTENSION DATA LENGTH”) -Update a few PTF
Groups to current levels -Apply PTF MF67593, which
isn’t in any PTF Group.

So it does seem to be an IBM issue that has already
been

(hopefully)

fixed. I will know for sure after the weekend.

I tried searching for PTFs but that seems futile
these

days...

unless

I'm

just not understanding how their newer searches

work...lol.

On Thu, Oct 1, 2020 at 10:07 AM Brad Stone <

bvstone@xxxxxxxxx

wrote:

Hi, Jeff.

I haven't seen any issues with Google, no. I just
am

wondering

if

it's

an

issue with only certain endpoints. It's hard to
tell. I

am

hoping

to

hear

from one customer to see what IBM tells them.

On Thu, Oct 1, 2020 at 9:36 AM Jeff Crosby <

jlcrosby@xxxxxxxxxxxxxxxx

wrote:

Is this 7.3? Would this possibly affect my using
G4G

uploading

PDFs?

Asking because I'm set to IPL and apply some PTF
groups

tomorrow

night.

Thanks.



On Thu, Oct 1, 2020 at 10:23 AM Brad Stone <

bvstone@xxxxxxxxx>

wrote:

I have a few customers that seem to be reporting
an

issue

with

the

IBM

SSL

APIs after applying a recent PTF group when
using

GETURI

(HTTPAPI

also

reports the same issues) communicating with a
web

service.

Also from tests using cURL and PHP on the IBM i
the

error

cannot

be

reproduced, neither can it on the PC using
Postman,

etc.

Randomly they are receiving the error:

415 - Peer not recognized or badly formatted
message

received.

If the standard SSL APIs are used RC is normally
-16

if I

recall.

One customer was able to work with a trading
partner

and

they

did a

trace

on their end and tracked it down to the "Hello"

communications

from

the

IBM

i during SSL negotiation.

What they saw and explained was something like this:

"...When everything is working fine we have
noticed the

server

hellos

are

super small …376 bytes which is an indication of
TLS

session

reuse.

Then

there is an attempt to do TLS reuse with a
different

proxy

or

backend

server and it fails which is likely this TLS
FATAL

illegal

parameter

error. The NEXT server hello is much larger,
3586

bytes,

because

the

TLS

session is trashed and has to start over.


It then works for a while with the little server

hello's

doing

session

reuse ... until a proxy or backend server gets
switched

and

it

blows

up

and

starts all over..."


So, when this error is reported on the IBM i
seems to

correlate

with

what

they see on their end where the TLS session is

"trashed".

My suspicion is that a recent PTF broke this,
since it

worked

for

years

previously and after the PTFs this behavior started.


I have the customer contacting IBM to see when
they can

find

with

all

this

information, but I am just curious if anyone
else is

experiencing

this

issue and what they have found.


Thanks.


Bradley V. Stone www.bvstools.com Native IBM i
e-Mail solutions for Microsoft Office 365,

Gmail,

or

any

Cloud

Provider!
--
This is the Web Enabling the IBM i (AS/400 and
iSeries)

(WEB400)

mailing

list
To post a message email:
WEB400@xxxxxxxxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit:

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=htt
ps
%3a%2f%2flists.midrange.com%2fmailman%2flistinfo%2fweb400&umid=409
ed
4e2-5fbd-4952-a9cd-3b8d52fa117c&auth=438b0784514c1757bd202125ca4db
8b 0abdb021e-5c676734ab576f4bd88a6271e6b0063776ba166d

or email: WEB400-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review
the

archives

at

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2farchive.midrange.com%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d
52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-41be33b27357552
865cd312c2581abf31e02e0bb
.

--


Jeff Crosby
VP Information Systems UniPro FoodService/Dilgard
P.O. Box 13369 Ft. Wayne, IN 46868-3369
260-422-7531
direct.dilgardfoods.com

The opinions expressed are my own and not
necessarily the

opinion

of

my

company. Unless I say so.
--
This is the Web Enabling the IBM i (AS/400 and
iSeries)

(WEB400)

mailing

list
To post a message email: WEB400@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit:

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https
%3
a%2f%2flists.midrange.com%2fmailman%2flistinfo%2fweb400&umid=409ed4e
2-
5fbd-4952-a9cd-3b8d52fa117c&auth=438b0784514c1757bd202125ca4db8b0abd
b0 21e-5c676734ab576f4bd88a6271e6b0063776ba166d

or email: WEB400-request@xxxxxxxxxxxxxxxxxx Before
posting, please take a moment to review the

archives

at

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2farchive.midrange.com%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d
52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-41be33b27357552
865cd312c2581abf31e02e0bb
.

--
This is the Web Enabling the IBM i (AS/400 and
iSeries)

(WEB400)

mailing

list
To post a message email: WEB400@xxxxxxxxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit:
https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/
qu
ery?url=https%3a%2f%2flists.midrange.com%2fmailman%2f
li
stinfo%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d52fa
11
7c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-5c67
67 34ab576f4bd88a6271e6b0063776ba166d
or email: WEB400-request@xxxxxxxxxxxxxxxxxx Before
posting, please take a moment to review the archives
at

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2farchive.midrange.com%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d
52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-41be33b27357552
865cd312c2581abf31e02e0bb
.

--
This is the Web Enabling the IBM i (AS/400 and iSeries)

(WEB400)

mailing

list
To post a message email: WEB400@xxxxxxxxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit:
https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/que
ry
?url=https%3a%2f%2flists.midrange.com%2fmailman%2flistin
fo
%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d52fa117c&auth
=4
38b0784514c1757bd202125ca4db8b0abdb021e-5c676734ab576f4b
d8 8a6271e6b0063776ba166d or email:
WEB400-request@xxxxxxxxxxxxxxxxxx Before posting, please
take a moment to review the archives at

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2farchive.midrange.com%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d
52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-41be33b27357552
865cd312c2581abf31e02e0bb
.

--
This is the Web Enabling the IBM i (AS/400 and iSeries)
(WEB400)

mailing

list
To post a message email: WEB400@xxxxxxxxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit:
https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query
?u
rl=https%3a%2f%2flists.midrange.com%2fmailman%2flistinfo%2
fw
eb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d52fa117c&auth=438b0
78
4514c1757bd202125ca4db8b0abdb021e-5c676734ab576f4bd88a6271
e6 b0063776ba166d or email:
WEB400-request@xxxxxxxxxxxxxxxxxx Before posting, please
take a moment to review the archives at

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2farchive.midrange.com%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d
52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-41be33b27357552
865cd312c2581abf31e02e0bb
.

--
This is the Web Enabling the IBM i (AS/400 and iSeries)
(WEB400)

mailing

list
To post a message email: WEB400@xxxxxxxxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit:
https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?u
rl
=https%3a%2f%2flists.midrange.com%2fmailman%2flistinfo%2fweb
40
0&umid=409ed4e2-5fbd-4952-a9cd-3b8d52fa117c&auth=438b0784514
c1
757bd202125ca4db8b0abdb021e-5c676734ab576f4bd88a6271e6b00637
76 ba166d or email: WEB400-request@xxxxxxxxxxxxxxxxxx Before
posting, please take a moment to review the archives at

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2farchive.midrange.com%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d
52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-41be33b27357552
865cd312c2581abf31e02e0bb
.

--
This is the Web Enabling the IBM i (AS/400 and iSeries)
(WEB400)

mailing

list
To post a message email: WEB400@xxxxxxxxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit:
https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url
=h
ttps%3a%2f%2flists.midrange.com%2fmailman%2flistinfo%2fweb400&
um
id=409ed4e2-5fbd-4952-a9cd-3b8d52fa117c&auth=438b0784514c1757b
d2
02125ca4db8b0abdb021e-5c676734ab576f4bd88a6271e6b0063776ba166d
or email: WEB400-request@xxxxxxxxxxxxxxxxxx Before posting,
please take a moment to review the archives at

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2farchive.midrange.com%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d
52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-41be33b27357552
865cd312c2581abf31e02e0bb
.

--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400)

mailing

list
To post a message email: WEB400@xxxxxxxxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit:
https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=h
tt
ps%3a%2f%2flists.midrange.com%2fmailman%2flistinfo%2fweb400&umid
=4
09ed4e2-5fbd-4952-a9cd-3b8d52fa117c&auth=438b0784514c1757bd20212
5c a4db8b0abdb021e-5c676734ab576f4bd88a6271e6b0063776ba166d
or email: WEB400-request@xxxxxxxxxxxxxxxxxx Before posting,
please take a moment to review the archives at

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2farchive.midrange.com%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d
52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-41be33b27357552
865cd312c2581abf31e02e0bb
.

--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400)
mailing list To post a message email: WEB400@xxxxxxxxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit:
https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=htt
ps
%3a%2f%2flists.midrange.com%2fmailman%2flistinfo%2fweb400&umid=409
ed
4e2-5fbd-4952-a9cd-3b8d52fa117c&auth=438b0784514c1757bd202125ca4db
8b 0abdb021e-5c676734ab576f4bd88a6271e6b0063776ba166d
or email: WEB400-request@xxxxxxxxxxxxxxxxxx Before posting, please
take a moment to review the archives at

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2farchive.midrange.com%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d
52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-41be33b27357552
865cd312c2581abf31e02e0bb
.

--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400)
mailing list To post a message email: WEB400@xxxxxxxxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit:
https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https
%3
a%2f%2flists.midrange.com%2fmailman%2flistinfo%2fweb400&umid=409ed4e
2-
5fbd-4952-a9cd-3b8d52fa117c&auth=438b0784514c1757bd202125ca4db8b0abd
b0 21e-5c676734ab576f4bd88a6271e6b0063776ba166d
or email: WEB400-request@xxxxxxxxxxxxxxxxxx Before posting, please
take a moment to review the archives at

https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2farchive.midrange.com%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d
52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-41be33b27357552
865cd312c2581abf31e02e0bb
.

--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400)
mailing list To post a message email: WEB400@xxxxxxxxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit:
https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2flists.midrange.com%2fmailman%2flistinfo%2fweb400&umid=409ed4e2-
5fbd-4952-a9cd-3b8d52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb0
21e-5c676734ab576f4bd88a6271e6b0063776ba166d
or email: WEB400-request@xxxxxxxxxxxxxxxxxx Before posting, please
take a moment to review the archives at
https://smex-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3
a%2f%2farchive.midrange.com%2fweb400&umid=409ed4e2-5fbd-4952-a9cd-3b8d
52fa117c&auth=438b0784514c1757bd202125ca4db8b0abdb021e-41be33b27357552
865cd312c2581abf31e02e0bb
.

--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400)
mailing list To post a message email: WEB400@xxxxxxxxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxxxxxxxx Before posting, please
take a moment to review the archives at
https://archive.midrange.com/web400.

--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400) mailing

list To post a message email: WEB400@xxxxxxxxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,

visit: https://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxxxxxxxx Before posting, please take

a moment to review the archives at https://archive.midrange.com/web400.

--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400) mailing

list

To post a message email: WEB400@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/web400.

--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400) mailing
list
To post a message email: WEB400@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/web400.

--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400) mailing list
To post a message email: WEB400@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: https://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives
at https://archive.midrange.com/web400.