On Thu, 21 Jan 2016 14:05:35 -0600, Kirk Wolf wrote:
>I would agree that it would be great if tcsetattr(NOECHO) actually worked
>under 3270 OMVS shells.
>
Why don't they just fix it!?
>But, under a TSO OMVS 3270 shell, using HOS1130 or HOS2220, don't you get
>this: ?
>
>zos$ ssh -oPubKeyAuthentication=no 127.0.0.1
>FOTS3322 Passwords may not be entered from 3270 terminals
>(terminates)
>
Sometimes. It seems to depend on a lot of things; too many variables
to characterize:
o What if the remote user ID doesn't exist?
o What if the remote user exists but has no .ssh directory?
o Others (perhaps)?
And FTP sometimes gives me:
And I just got:
user@OS/390.25.00: ssh UNIXuser@Solaris
The authenticity of host 'Solaris (10.xx.yy.zz)' can't be established.
RSA key fingerprint is d9:9f:85:53:d4:fa:dd:81:aa:29:73:f5:9e:ff:b8:5f.
Are you sure you want to continue connecting (yes/no)? yes
FOTS2274 Warning: Permanently added 'Solaris,10.xx.yy.zz' (RSA) to the list of
known hosts.
Password:
===>
INPUT
HIDDEN/INPUT
I don't know what makes that happen; usually I get FOTS3322. I had:
user@OS/390.25.00: ls -al .ssh
total 120
drwx------ 2 user group 8192 Jan 21 14:52 .
drwxr-xr-x 49 user group 49152 Jan 21 14:50 ..
-rw-r--r-- 1 user group 412 Jan 21 14:59 known_hosts
user@OS/390.25.00:
>But the above behavior is still a big improvement: you can now do basic
>connectivity tests and anything else as long as you don't need to prompt
>for a password. So keys work fine.
>
And a misbehavior. If I ssh to a Solaris system I get no terminal output,
but I can see from file changes that my commands are being executed.
I wonder what's funny about Solaris pty handling? I need to log and
see what my $TERM is.
And a glaring hole. If I ssh to a Linux system and thence to a system on
which I have no key, Linux ssh suppresses echo (tcsetattr()?) and prompts
for a password. But OMVS doesn't know that echoes aren't happening --
it's working blockmode, and my password appears as I type it.
This feels like too much WAD; OMVS support would surely blame Linux.
I think the moral is, Don't use 3270.
-- gil
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