Re: [EXTERNAL] Re: PASSPORT 3270 emulator (PC) problem w transferring files

[Paul Gilmartin]

On Wed, 10 Apr 2024 17:59:26 +, Pommier, Rex  wrote:

>...
>Anyway, Microsoft ftp client doesn't support passive and zscaler only supports 
>passive.  Guess what quit talking?
>
The dual-socket FTP design, separating control and data, was recherché in
its time and now obsoleted by security practices.

Has any FTP implementation exploited the optimization offered by such as
,
connecting the socket via kernel to a file descriptor?

-- 
gil

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Re: [EXTERNAL] Re: PASSPORT 3270 emulator (PC) problem w transferring files

[Pommier, Rex]

Yeah, I know.  We're fighting that right now.  We use a bunch of internal FTP 
(where we don't need TLS) between Windows PCs and the mainframe.  They tried to 
change our remote access from Cisco VPN to something called zscaler which 
apparently doesn't build a full tunnel.  Anyway, Microsoft ftp client doesn't 
support passive and zscaler only supports passive.  Guess what quit talking?

Rex

-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of 
Charles Mills
Sent: Wednesday, April 10, 2024 12:06 PM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: [EXTERNAL] Re: PASSPORT 3270 emulator (PC) problem w transferring 
files

Nor passive FTP (FWFRIENDLY, as IBM calls it)

Charles

-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Michael Babcock
Sent: Wednesday, April 10, 2024 8:18 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: [EXTERNAL] Re: PASSPORT 3270 emulator (PC) problem w transferring 
files

If TLS is required MS FTP doesn’t support TLS, at least on Win10.

On Wed, Apr 10, 2024 at 8:19 AM Pommier, Rex 
wrote:

> Unless it's been disabled, isn't Microsoft FTP client part of the OS?

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Re: [EXTERNAL] Re: PASSPORT 3270 emulator (PC) problem w transferring files

[Charles Mills]

Nor passive FTP (FWFRIENDLY, as IBM calls it)

Charles

-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf 
Of Michael Babcock
Sent: Wednesday, April 10, 2024 8:18 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Re: [EXTERNAL] Re: PASSPORT 3270 emulator (PC) problem w transferring 
files

If TLS is required MS FTP doesn’t support TLS, at least on Win10.

On Wed, Apr 10, 2024 at 8:19 AM Pommier, Rex 
wrote:

> Unless it's been disabled, isn't Microsoft FTP client part of the OS?

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Re: PASSPORT 3270 emulator (PC) problem w transferring files

[Paul Gilmartin]

On Wed, 10 Apr 2024 14:39:11 +, Robert Prins wrote:
>
>You're probably paid a fair amount of dosh, ... And for ftp, FileZilla is free.
>
>
Provided the client:
o Allows FTP
o Allows shareware.

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Re: PASSPORT 3270 emulator (PC) problem w transferring files

[Steve Thompson]

If that PC has email for/by the client, then if you can attach a 
file, that has been through translation from EBCDIC to ASCII (or 
the code page of your choice), then that might be the best way to 
get that to you. Just trying to think outside the box.


Steve Thompson

On 4/10/2024 6:15 AM,   wrote:

Yes a real ftp software would be much better.

But as this pc is controlled by the client, installation of another software is 
out of the question, especially as I'm not employed by the client. At least not 
in the near future.

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Re: [EXTERNAL] Re: PASSPORT 3270 emulator (PC) problem w transferring files

[Michael Babcock]

If TLS is required MS FTP doesn’t support TLS, at least on Win10.

On Wed, Apr 10, 2024 at 8:19 AM Pommier, Rex 
wrote:

> Unless it's been disabled, isn't Microsoft FTP client part of the OS?
>
> -Original Message-
> From: IBM Mainframe Discussion List  On Behalf
> Of  
> Sent: Wednesday, April 10, 2024 5:19 AM
> To: IBM-MAIN@LISTSERV.UA.EDU
> Subject: [EXTERNAL] Re: PASSPORT 3270 emulator (PC) problem w transferring
> files
>
> I will check those and other options in PASSPORT but for the moment it is
> occupied with a transfer.
>
> As I mentioned in my earlier comment installation of a new software isn't
> possible in my situation.
>
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> that any disclosure, distribution, copying, or any action taken or action
> omitted in reliance on it, is strictly prohibited and may be unlawful. If
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>
>
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Re: PASSPORT 3270 emulator (PC) problem w transferring files

[John S. Giltner, Jr.]

Robert is on the right path.

It's been decades since I used Passport.  But you need to have your 3270 
session setup with extended attributes enable, then setup IND$FILE options in 
Passport to use Structured Field or something like that.  Then you can set the 
block size to the largest Passports supports.  This is not file block size.  
This block size is used to determine how many bytes of data IND$FILE will send 
in one chunk before it waits for an ACK to send more. Not sure what Passport 
may support, but the default is normally about 2K and the max. allowed by 
IND$FILE is 32K.


On Wed, 10 Apr 2024 12:41:38 +, Robert Prins  
wrote:

>I'm also using IND$FILE, with Tom Brennan's Vista tn3270, running something
>I shouldn't be running under Hercules, i.e. all on the same PC. It's still
>not as fast as ftp, but I regularly transfer nearly 5 Gb from z/OS to the
>PC, which doesn't take that long.
>
>It may not be the same for PASSPORT, but I use "DFT" mode with the
>(apparent) maximum blocksize of 32,000, rather than the 2,500 default. Just
>try to change, if they're available those settings,  or get a 30-day trial
>copy of Vista, and see if that makes any difference.
>
>Robert
>
>On Wed, 10 Apr 2024 at 08:17,   <
>0619bfe39560-dmarc-requ...@listserv.ua.edu> wrote:
>
>> I'have recenctly returned to the job life  after I retired in 2016.
>>
>> As I'm working remote I'm using the PASSPORT 3270 emulator program.
>>
>> But the file transfers (IND$FILE) is VERY/EXTREMELY slow from PC to MF.
>>
>> My internet connection or my local network should not be the problem. Have
>> a 500Mb/500Mb connection and my network have no problem with anything else.
>> The connection is going through a VPN software (Check Point Mobile Version
>> VPN E86.20) that seems to work as intended, e g no error or warning
>> messages. Otherwise Windows 10 at a laptop provided by my client (a large
>> bank in Sweden).
>>
>> The speed for e g 7MB is about 2.5 hours.
>>
>> Any suggestions to speed it up?
>>
>> --
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>> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
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>
>
>--
>Robert AH Prins
>robert(a)prino(d)org
>The hitchhiking grandfather 
>Some REXX code for use on z/OS
>
>
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Re: [EXTERNAL] Re: PASSPORT 3270 emulator (PC) problem w transferring files

[Pommier, Rex]

Unless it's been disabled, isn't Microsoft FTP client part of the OS?  

-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of 
 
Sent: Wednesday, April 10, 2024 5:19 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: [EXTERNAL] Re: PASSPORT 3270 emulator (PC) problem w transferring files

I will check those and other options in PASSPORT but for the moment it is 
occupied with a transfer. 

As I mentioned in my earlier comment installation of a new software isn't 
possible in my situation. 

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is strictly prohibited and may be unlawful. If you have received this 
communication in error, please notify us immediately by replying to this 
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Re: PASSPORT 3270 emulator (PC) problem w transferring files

[Alexander Huemer]

My first instinct is to look at the network traffic of your transfer 
with wireshark or something equivalent, provided it's not SSL-encrypted.
That can potentially help you to understand why the transfer rate is so 
low. Maybe there are many retransmissions or something like that.
At any rate, that's very easy to do and can help you to rule out 
scenarios.

-Alex

On Wed, Apr 10, 2024 at 03:06:45AM -0500,   wrote:
> I'have recenctly returned to the job life  after I retired in 2016. 
> 
> As I'm working remote I'm using the PASSPORT 3270 emulator program. 
>  
> But the file transfers (IND$FILE) is VERY/EXTREMELY slow from PC to MF. 
>  
> My internet connection or my local network should not be the problem. Have a 
> 500Mb/500Mb connection and my network have no problem with anything else. 
> The connection is going through a VPN software (Check Point Mobile Version 
> VPN E86.20) that seems to work as intended, e g no error or warning messages. 
> Otherwise Windows 10 at a laptop provided by my client (a large bank in 
> Sweden). 
> 
> The speed for e g 7MB is about 2.5 hours. 
> 
> Any suggestions to speed it up?
> 
> --
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Re: PASSPORT 3270 emulator (PC) problem w transferring files

[Robert Prins]

On Wed, 10 Apr 2024 at 10:19,   <
0619bfe39560-dmarc-requ...@listserv.ua.edu> wrote:

> I will check those and other options in PASSPORT but for the moment it is
> occupied with a transfer.
>
> As I mentioned in my earlier comment installation of a new software isn't
> possible in my situation.
>

You're probably paid a fair amount of dosh, so it would be in the best
interest of your client to give you the tools to do your job in the best
possible way, so you could even suggest you pay for Vista yourself, it's
only USD 30, I doubt that that would break the bank, and ask your client to
install it. And for ftp, FileZilla is free.

Robert
-- 
Robert AH Prins
robert(a)prino(d)org
The hitchhiking grandfather 
Some REXX code for use on z/OS


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Re: PASSPORT 3270 emulator (PC) problem w transferring files

I will check those and other options in PASSPORT but for the moment it is 
occupied with a transfer. 

As I mentioned in my earlier comment installation of a new software isn't 
possible in my situation.

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Re: PASSPORT 3270 emulator (PC) problem w transferring files

Yes a real ftp software would be much better. 

But as this pc is controlled by the client, installation of another software is 
out of the question, especially as I'm not employed by the client. At least not 
in the near future.

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Re: PASSPORT 3270 emulator (PC) problem w transferring files

[Robert Prins]

I'm also using IND$FILE, with Tom Brennan's Vista tn3270, running something
I shouldn't be running under Hercules, i.e. all on the same PC. It's still
not as fast as ftp, but I regularly transfer nearly 5 Gb from z/OS to the
PC, which doesn't take that long.

It may not be the same for PASSPORT, but I use "DFT" mode with the
(apparent) maximum blocksize of 32,000, rather than the 2,500 default. Just
try to change, if they're available those settings,  or get a 30-day trial
copy of Vista, and see if that makes any difference.

Robert

On Wed, 10 Apr 2024 at 08:17,   <
0619bfe39560-dmarc-requ...@listserv.ua.edu> wrote:

> I'have recenctly returned to the job life  after I retired in 2016.
>
> As I'm working remote I'm using the PASSPORT 3270 emulator program.
>
> But the file transfers (IND$FILE) is VERY/EXTREMELY slow from PC to MF.
>
> My internet connection or my local network should not be the problem. Have
> a 500Mb/500Mb connection and my network have no problem with anything else.
> The connection is going through a VPN software (Check Point Mobile Version
> VPN E86.20) that seems to work as intended, e g no error or warning
> messages. Otherwise Windows 10 at a laptop provided by my client (a large
> bank in Sweden).
>
> The speed for e g 7MB is about 2.5 hours.
>
> Any suggestions to speed it up?
>
> --
> For IBM-MAIN subscribe / signoff / archive access instructions,
> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
>


-- 
Robert AH Prins
robert(a)prino(d)org
The hitchhiking grandfather 
Some REXX code for use on z/OS


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Re: PASSPORT 3270 emulator (PC) problem w transferring files

[גדי בן אבי]

MY Best advice would be to use ftp or some other file transfer program 
(Connect:Direct, XCOM or others) that works over TCP/IP.

Using the 3270 protocol that was meant for displaying screens to transfer files 
was never very fast.

-Original Message-
From: IBM Mainframe Discussion List  On Behalf Of 
 
Sent: יום ד 10 אפריל 2024 11:07
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: PASSPORT 3270 emulator (PC) problem w transferring files

I'have recenctly returned to the job life  after I retired in 2016. 

As I'm working remote I'm using the PASSPORT 3270 emulator program. 
 
But the file transfers (IND$FILE) is VERY/EXTREMELY slow from PC to MF. 
 
My internet connection or my local network should not be the problem. Have a 
500Mb/500Mb connection and my network have no problem with anything else. 
The connection is going through a VPN software (Check Point Mobile Version VPN 
E86.20) that seems to work as intended, e g no error or warning messages. 
Otherwise Windows 10 at a laptop provided by my client (a large bank in 
Sweden). 

The speed for e g 7MB is about 2.5 hours. 

Any suggestions to speed it up? 

--
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