I could be wrong but if the client is using I/P addresses then DNS does not get in the picture?

he responded to me the client is using the I/P address, gets connected OK, then enters the userid....long delay

Carmen

On 8/19/2021 8:20 AM, Lionel B. Dyck wrote:
Are your DNS servers in house or is it that your system does not have network 
connectivity outside your system?

You can try these public (Google) DNS servers   

8.8.8.8 and 8.8.4.4


Lionel B. Dyck <><
Website: https://www.lbdsoftware.com
Github: https://github.com/lbdyck

“Worry more about your character than your reputation. Character is what you 
are, reputation merely what others think you are.”   - - - John Wooden

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Pommier, Rex
Sent: Thursday, August 19, 2021 8:15 AM
To: [email protected]
Subject: Re: FTP problem

I just saw that your DNS servers aren't available.  Try removing them from your 
TCP/IP configuration and see if that increases the speed.

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Pommier, Rex
Sent: Thursday, August 19, 2021 8:08 AM
To: [email protected]
Subject: [External] Re: FTP problem

Gadi,

Check your DNS servers the mainframe is looking for as to whether they're up or 
not.  Could it be that it's trying to do a DNS lookup sometime in there and 
waiting for primary DNS timeout before continuing?  We had a similar issue 
several years ago where the DNS servers weren't up yet during one of our tests 
and I changed the TCP/IP DNS sequencing to use one that was already up and my 
problem went away.

Rex

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
Gadi Ben-Avi
Sent: Thursday, August 19, 2021 7:30 AM
To: [email protected]
Subject: [External] Re: FTP problem

Hi James,
SDSF doesn't report any paging.
I haven't seen any paging in a long time.

Gadi

-----Original Message-----
From: IBM Mainframe Discussion List <[email protected]> On Behalf Of 
James Crudele
Sent: Thursday, August 19, 2021 3:26 PM
To: [email protected]
Subject: Re: FTP problem

Check storage while you’re at it. Could address spaces be swapping out because 
you are so low?


On Aug 19, 2021, at 06:22, Gadi Ben-Avi <[email protected]> wrote:

Hi,
We are in the midst of a DR test.
A user is complaining that they are have problems using ftp.

When the issue the ftp command from the command line in windows, they get the 
prompt for the user name almost immediately.
Once the user enters the password and presses enter, it takes over a minute to 
get the prompt for the password.

Has anyone encountered this problem.

We do not have a similar problem on our production system.

The production system is a z15-t02. The LPAR has 92 GB of storage.
The DR system is a z13s. The LPAR has 16GB of storage.

Both are running z/OS 2.3.

Any help would be appreciated.

Thanks

Gadi


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