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  3. October 2018

Re: Sftp password auth


Jack, what did you use to open the manual ? libes.ps

Thanks

Don Brown






From: "Jack Woehr" <jwoehr@xxxxxxxxxxxxxxxxxxxxxxxx>
To: "Midrange Systems Technical Discussion"
<midrange-l@xxxxxxxxxxxx>
Date: 05/10/2018 04:31 AM
Subject: Re: Sftp password auth
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



There's terminal control issues with QP2TERM as I mentioned before.

You should abandon QP2TERM and ssh into your PASE session.

Here's Don Libes (author of expect) writing about autoexpect
http://usenix.org/publications/library/proceedings/lisa96/full_papers/libes/libes.ps




On Thu, Oct 4, 2018 at 12:26 PM, Jay Vaughn <jeffersonvaughn@xxxxxxxxx>
wrote:

when i go into qp2term and spawn the sftp request I do not get any
prompts...??

On Thu, Oct 4, 2018 at 2:24 PM Kevin Bucknum <Kevin@xxxxxxxxxxxxxxxxxxx>
wrote:

Without being able to run an interactive session, I really think you
are
playing pin the tail on the donkey. I think we just have one script
that
we
share between two different servers. All the rest of the servers have
their
own scripts because the prompts are different. This one sends password:
when it wants the password and sftp> when it wants a command. Looking
at
another one it appears that it sends login -> when it wants the
password
and the command prompt is just a $. I've never used autoexpect that
Jack
is
suggesting, but I've always basically done the same thing. Get to a
command
line and run the sftp session interactively and write down the prompts.
Then use those to create my expect sessions.


________________________________
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxx> on behalf of Jay
Vaughn <jeffersonvaughn@xxxxxxxxx>
Sent: Thursday, October 4, 2018 1:07 PM
To: Midrange Systems Technical Discussion
Subject: Re: Sftp password auth

thanks kevin,

it is not working with 2 out of 2 non-iseries servers I'm testing
against...
but works with an internal iSeries sftp server...

the outside company provided logs but did not tell me nothing.
the internal network guys said that each time i'd attempt connection
wtih
the internal sftp server I"d get blacklisted... they fix and I'd retry
and
it would blacklist me.

I'll try your script...

On Thu, Oct 4, 2018 at 2:03 PM Kevin Bucknum
<Kevin@xxxxxxxxxxxxxxxxxxx>
wrote:

None of my expect scripts are used to connect to iseries boxes. All
are
to
windows or linux boxes. Your issue is with this particular server. If
you
can't get server operator to help you by looking at the logs on their
side,
then it is hard to tell you what is wrong.


This script runs many times a day and works fine.
#!/usr/local/bin/expect -f
spawn sftp -oPort=9002 xxxx@a.b.c.d
expect "password:"
send "pass\n"
expect "sftp>"
send "cd current\n"
expect "sftp>"
send "mget *\n"
expect "sftp>"
send "quit\n"

________________________________
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxx> on behalf of Jay
Vaughn <jeffersonvaughn@xxxxxxxxx>
Sent: Thursday, October 4, 2018 12:49 PM
To: Midrange Systems Technical Discussion
Subject: Re: Sftp password auth

the conclusion i arrived at as well...

Jack do you see anything wrong with this script?
If not, and nobody can produce a simple script the use to connect to
a
non-iseries sftp server, I'm going to conclude nobody knows how or it
can't
be done.
(good talent on this list is what I'm trying to say :))

#!/usr/local/bin/expect -f
set timeout 20
spawn sftp -vvv -o PreferredAuthentications=password -oport=22
$env(SSH_USER)@10.175.96.213
expect {
default {exit 2}
"continue connecting (yes/no)?" {send "yes\n"; exp_continue}
"assword:" {send "$env(SSH_PASS) \n"; exp_continue}
"sftp>"
}
expect {
default {exit 2}
"not found" {exit 3}
"sftp>"
}
send "quit\n"
exit 0





On Thu, Oct 4, 2018 at 1:43 PM Jack Woehr <
jwoehr@xxxxxxxxxxxxxxxxxxxxxxxx

wrote:

no terminal control from inside qp2term


On Thu, Oct 4, 2018 at 11:39 AM, Jay Vaughn <
jeffersonvaughn@xxxxxxxxx

wrote:

Kevin, no... if I do the following steps, I never get prompted
for
a
password...

1.) call qp2term
2.) sftp -vvv -o PreferredAuthentications=password -oport=22
qaISGNsftp@xxxxxxxxxxxxxxx

shouldn't I be getting a prompt for password?

Jay

On Thu, Oct 4, 2018 at 1:17 PM Kevin Adler <kadler@xxxxxxxxxx>
wrote:

Your log seems to have clipped anything after a comma. eg.
this
line

debug2: we sent a password packet

should read

debug2: we sent a password packet, wait for a reply

I'm not sure whether the missing data is necessary, but it
would
be
nice
to have.

In any event, based on what is in the log it would appear
that
after
sending a password packet your remote server is not replying
but
instead
just closing the connection. That seems odd to me. The
server's
log
might
shed some light on the problem, but of course you don't have
access
to
that. You may have to contact the system owner and see if
they
can
figure
it out.


Can you connect to the server normally? It's just the expect
script
which
fails?
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[https://www.medtronsoftware.com/img/MedtronMinilogo.bmp] Kevin
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MEDDATA / MEDTRON
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Local: 985-893-2550
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