Subject: RE: sshd and RSA Authentication
From: "Kevin Wright" <[email-masked]>
To: <[email-masked]>
Cc: "Kim Lee" <[email-masked]>
Date: Sun, 18 Feb 2001 17:44:43 -0700

Kim,

I have you looked in /usr/doc? Here's a list of files there:

bzip2-1.0.1.README      jbigkit-1.2.README      ncurses-5.2.README
vim-5.7.README
crypt.README            jpeg-6b.README          openssh-2.3.0p1.README
wget-1.6.README
cvs-1.11.0.README       libpng-1.0.9.README     perl-5.6.1.README
xpm-4.0.0.README
gdbm-1.8.0.README       login.README            readline-4.1.README
zip-2.3.README
gettext-0.10.35.README  mt.README               tiff-3.5.5.README
zlib-1.1.3.README
inetutils-1.3.2.README  ncftp-3.0.2.README      unzip-5.41.README

check out the files for login, inetutils, openssh to begin with. And if you
still have a problem. Search the mailing list:

http://cygwin.com/ml/cygwin/

--Kevin

> -----Original Message-----
> From: [email-masked]
> [mailto:[email-masked]]On Behalf Of Kim Lee
> Sent: Sunday, February 18, 2001 6:25 PM
> To: [email-masked]
> Subject: sshd and RSA Authentication
>
>
> Hi there,
>
> if there is a step by step document specific to cygwin, sshd and
> getting RSA authentication to work please point me to it..
>
> Please read on anyway...
>
> I'm having problems getting w2k server sshd to allow RSA login without
> a password from another W2k Server box
>
> Here are some detail:
>
> I'm using latest (as of today) cygwin tools (ran the setup.exe and updated
> from the internet)
>
> /etc/passwd has...
>
> Administrator::500:513:,S-1-5-21-3438086697-2421862272-1916658313-
> 500:/home/Administrator:/bin/sh
>
>
> This is the ssh client machine.
>
>
> administrator@SHRIMP ~
> $ ssh -v KRILL
> SSH Version OpenSSH_2.3.0p1, protocol versions 1.5/2.0.
> Compiled with SSL (0x0090581f).
> debug: Seeding random number generator
> debug: ssh_connect: getuid 500 geteuid 500 anon 0
> debug: Connecting to KRILL [172.16.0.202] port 22.
> debug: Seeding random number generator
> debug: Allocated local port 946.
> debug: Connection established.
> debug: Remote protocol version 1.5, remote software version 1.2.26
> debug: no match: 1.2.26
> debug: Local version string SSH-1.5-OpenSSH_2.3.0p1
> debug: Waiting for server public key.
> debug: Received server public key (768 bits) and host key (1024 bits).
> debug: Host 'krill' is known and matches the RSA host key.
> debug: Seeding random number generator
> debug: Encryption type: 3des
> debug: Sent encrypted session key.
> debug: Installing crc compensation attack detector.
> debug: Received encrypted confirmation.
> debug: Trying RSA authentication with key 'administrator@SHRIMP'
> debug: Server refused our key.
> debug: Doing password authentication.
> administrator@krill's password:  <had to type password in>
> debug: Requesting pty.
> debug: Requesting shell.
> debug: Entering interactive session.
> Environment:
>   HOME=/home/Administrator
>   USER=administrator
>   LOGNAME=administrator
>   SHELL=/bin/sh
>   SSH_CLIENT=172.16.0.201 946 22
>   SSH_TTY=/dev/tty0
>   TERM=cygwin
>
> \[\033]0;\w\007
> \033[32m\]\u@\h \[\033[33m\w\033[0m\]
> $ exit
> Connection to KRILL closed.
> debug: Transferred: stdin 0, stdout 247, stderr 29 bytes in 5.8 seconds
> debug: Bytes per second: stdin 0.0, stdout 42.8, stderr 5.0
> debug: Exit status 1
>
>
>
>
> Here's the server end.
>
>
>
> administrator@KRILL ~
> $ sshd -d
> debug: sshd version 1.2.26 [i586-pc-cygwin32]
> debug: Initializing random number generator; seed file ssh_random_seed
> log: Server listening on port 22.
> log: Generating 768 bit RSA key.
> Generating p:  ..++ (distance 72)
> Generating q:  ...................++ (distance 288)
> Computing the keys...
> Testing the keys...
> Key generation complete.
> log: RSA key generation complete.
> debug: Server will not fork when running in debugging mode.
> error: setsockopt IPTOS_LOWDELAY: Invalid argument
> log: Connection from 172.16.0.201 port 946
> debug: Client protocol version 1.5; client software version
> OpenSSH_2.3.0p1
> debug: Sent 768 bit public key and 1024 bit host key.
> debug: Encryption type: 3des
> debug: Received session key; encryption turned on.
> debug: Installing crc compensation attack detector.
> debug: Attempting authentication for administrator.
> debug: RSA authentication for administrator failed.
> log: Password authentication for administrator accepted.
> debug: Allocating pty.
> error: setsockopt IPTOS_LOWDELAY: Invalid argument
> debug: Forking shell.
> debug: Entering interactive session.
> debug: Received SIGCHLD.
> debug: End of interactive session; stdin 5, stdout (read 242, sent 242),
> stderr
> 0 bytes.
> debug: pty_cleanup_proc called
> debug: Command exited with status 1.
> debug: Received exit confirmation.
> log: Closing connection to 172.16.0.201
>
> what is IPTOS_LOWDELAY, there is a rather long pause (10 seconds +) after
> the "connection is established" before the password prompt pops up.
>
> Note: the cygwin ssh client to a unix box with RSA authentication (no
> password)
> works fine and there is no delay.
>
> Another interesting thing is ssh client to a Windows 2000 Professional
> (NOT
> server) sshd doesn't have this delay but RSA authentication still doesn't
> work.
>
> What am I doing wrong? Any ideas or pointers? Thanks :)
> --
> Cheers
> ----------------------------------------------------------------------
> Kim Lee                         Senior Engineer - Bulletproof Networks
> ph: +61 (0) 416 212 025                 http://www.bulletproof.net.au/
>                    "When failure is not an option"
>
> --
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>

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