Mail Archives: cygwin/2010/04/07/13:37:18
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| From: | Kent Larsson <kent DOT larsson AT euroling DOT se>
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| Date: | Wed, 7 Apr 2010 19:36:05 +0200
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| Message-ID: | <j2v70497a8b1004071036y9b3da9b7z6decfbccb6316e87@mail.gmail.com>
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| Subject: | Problem with SSH log on through passwordless public key using the LSA security method on a Windows Server 2008 Standard machine
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Hi,
I'm having problems logging in to a Windows Server 2008 Standard
machine using a password-less public key and I feel that I'm getting
nowhere closer to solving it. Despite my attempts the log in always
results in asking for my account password. Logging in using a password
works well, but I really need to log in using my public.
What I've done is:
1. Turing DEP off by: bcdedit.exe /set {current} nx AlwaysOff
2. Installing Cygwin
3. Execute /usr/bin/cyglsa-config to use "Switching the user context
without password, Method 2: LSA authentication package" from
http://cygwin.com/cygwin-ug-net/ntsec.html followed by a computer
restart
4. Added the row "CYGWIN=binmode tty ntsec" (without ") to
c:\cygwin\Cygwin.bat
5. Execute "ssh-host-config" choosing the defaults, I wrote "binmode
tty ntsec" when asked for the CYGWIN contents
After that, the system has been restarted numerous times. I also have
"Cron deamon" running, under a domain account. But I don't think it
affects the issue. I'm able to log in using a password, but not using
a public key. Also the su command doesn't work, it asks me for a
password when issuing it and always respons with "su: /bin/bash:
Permission denied", that one might be related?
Below are some output which might make it easier to know what's wrong
divided into ** headlines **.
Thank you for reading! I hope someone has a tip or two. Any help is
greatly appreciated! :-)
Best regards,
Kent Larsson
** bcdedit.exe **
C:\Users\netdevel>bcdedit.exe
Windows Boot Manager
--------------------
identifier {bootmgr}
device partition=C:
description Windows Boot Manager
locale en-US
inherit {globalsettings}
default {current}
displayorder {current}
toolsdisplayorder {memdiag}
timeout 30
resume No
Windows Boot Loader
-------------------
identifier {current}
device partition=C:
path \Windows\system32\winload.exe
description Microsoft Windows Server 2008
locale en-US
inherit {bootloadersettings}
osdevice partition=C:
systemroot \Windows
resumeobject {13f36e53-1fe7-11df-8fce-99bbadfdd430}
nx AlwaysOff
** The ssh-host-config script and some thoughts **
/usr/share/doc/Cygwin/openssh.README says:
1. The user which runs the "CYGWIN sshd"-service should have the rights:
a. "Create a token object"
b. "Logon as a service"
c. "Replace a process level token"
d. "Increase Quota"
2. The "ssh-host-config" script asks you, if it should create such an
account, called "sshd_server" with the correct (above) rights.
3. Note that ssh-user-config sets the permissions on 2003 Server
machines dependent of whether a sshd_server account exists or not.
I don't understand [3] above and [2] doesn't seem to be quite right
any more? As far as I can tell, when I ran the script and an account
named "cyg_server" was created. The "CYGWIN sshd"-service is running
under the created account.
By logging on to the server and "Start / Administrative Tools / Local
Security Policy / Local Policies / User Rights Assignment" I'm able to
verify that the "cyg_server" which runs the "CYGWIN sshd"-service has
the 1a,1b,1c rights. But the 1d (Increase Quota) can not be found
under "User Rights Assignment". The two who start with "Increase" are
"Increase a process working set" and "Increase scheduling priority".
Neither of which the "cyg_server" account is assigned.
What's different from the README above is the account name, and maybe
the lack of "Increase Quota" (I have no idea where I should be able to
find it if not where I looked, and if it really is necessary).
** Cygwin version **
$ uname -a
CYGWIN_NT-6.0 kentl 1.7.1(0.218/5/3) 2009-12-07 11:48 i686 Cygwin
** Installed Cygwin packages **
$ cygcheck -c
Cygwin Package Information
Package Version Status
_update-info-dir 00871-1 OK
alternatives 1.3.30c-10 OK
arj 3.10.22-1 OK
aspell 0.60.5-1 OK
aspell-en 6.0.0-1 OK
aspell-sv 0.50.2-2 OK
autossh 1.4b-1 OK
base-cygwin 2.1-1 OK
base-files 3.9-3 OK
base-passwd 3.1-1 OK
bash 3.2.49-23 OK
bash-completion 1.1-2 OK
bc 1.06-2 OK
bzip2 1.0.5-10 OK
cabextract 1.1-1 OK
compface 1.5.2-1 OK
coreutils 7.0-2 OK
cron 4.1-59 OK
crypt 1.1-1 OK
csih 0.9.1-1 OK
curl 7.19.6-1 OK
cvs 1.12.13-10 OK
cvsutils 0.2.5-1 OK
cygrunsrv 1.34-1 OK
cygutils 1.4.2-1 OK
cygwin 1.7.1-1 OK
cygwin-doc 1.5-1 OK
cygwin-x-doc 1.1.0-1 OK
dash 0.5.5.1-2 OK
diffutils 2.8.7-2 OK
doxygen 1.6.1-2 OK
e2fsprogs 1.35-3 OK
editrights 1.01-2 OK
emacs 23.1-10 OK
emacs-X11 23.1-10 OK
file 5.04-1 OK
findutils 4.5.5-1 OK
flip 1.19-1 OK
font-adobe-dpi75 1.0.1-1 OK
font-alias 1.0.2-1 OK
font-encodings 1.0.3-1 OK
font-misc-misc 1.1.0-1 OK
fontconfig 2.8.0-1 OK
gamin 0.1.10-10 OK
gawk 3.1.7-1 OK
gettext 0.17-11 OK
gnome-icon-theme 2.28.0-1 OK
grep 2.5.4-2 OK
groff 1.19.2-2 OK
gvim 7.2.264-1 OK
gzip 1.3.12-2 OK
hicolor-icon-theme 0.11-1 OK
inetutils 1.5-6 OK
ipc-utils 1.0-1 OK
keychain 2.6.8-1 OK
less 429-1 OK
libaspell15 0.60.5-1 OK
libatk1.0_0 1.28.0-1 OK
libaudio2 1.9.2-1 OK
libbz2_1 1.0.5-10 OK
libcairo2 1.8.8-1 OK
libcurl4 7.19.6-1 OK
libdb4.2 4.2.52.5-2 OK
libdb4.5 4.5.20.2-2 OK
libexpat1 2.0.1-1 OK
libfam0 0.1.10-10 OK
libfontconfig1 2.8.0-1 OK
libfontenc1 1.0.5-1 OK
libfreetype6 2.3.12-1 OK
libgcc1 4.3.4-3 OK
libgdbm4 1.8.3-20 OK
libgdk_pixbuf2.0_0 2.18.6-1 OK
libgif4 4.1.6-10 OK
libGL1 7.6.1-1 OK
libglib2.0_0 2.22.4-2 OK
libglitz1 0.5.6-10 OK
libgmp3 4.3.1-3 OK
libgtk2.0_0 2.18.6-1 OK
libICE6 1.0.6-1 OK
libiconv2 1.13.1-1 OK
libidn11 1.16-1 OK
libintl3 0.14.5-1 OK
libintl8 0.17-11 OK
libjasper1 1.900.1-1 OK
libjbig2 2.0-11 OK
libjpeg62 6b-21 OK
libjpeg7 7-10 OK
liblzma1 4.999.9beta-10 OK
libncurses10 5.7-18 OK
libncurses8 5.5-10 OK
libncurses9 5.7-16 OK
libopenldap2_3_0 2.3.43-1 OK
libpango1.0_0 1.26.2-1 OK
libpcre0 8.00-1 OK
libpixman1_0 0.16.6-1 OK
libpng12 1.2.35-10 OK
libpopt0 1.6.4-4 OK
libpq5 8.2.11-1 OK
libreadline6 5.2.14-12 OK
libreadline7 6.0.3-2 OK
libsasl2 2.1.19-3 OK
libSM6 1.1.1-1 OK
libssh2_1 1.2.2-1 OK
libssp0 4.3.4-3 OK
libstdc++6 4.3.4-3 OK
libtiff5 3.9.2-1 OK
libwrap0 7.6-20 OK
libX11_6 1.3.3-1 OK
libXau6 1.0.5-1 OK
libXaw3d7 1.5D-8 OK
libXaw7 1.0.7-1 OK
libxcb-render-util0 0.3.6-1 OK
libxcb-render0 1.5-1 OK
libxcb1 1.5-1 OK
libXcomposite1 0.4.1-1 OK
libXcursor1 1.1.10-1 OK
libXdamage1 1.1.2-1 OK
libXdmcp6 1.0.3-1 OK
libXext6 1.1.1-1 OK
libXfixes3 4.0.4-1 OK
libXft2 2.1.14-1 OK
libXi6 1.3-1 OK
libXinerama1 1.1-1 OK
libxkbfile1 1.0.6-1 OK
libxml2 2.7.6-1 OK
libXmu6 1.0.5-1 OK
libXmuu1 1.0.5-1 OK
libXpm4 3.5.8-1 OK
libXrandr2 1.3.0-10 OK
libXrender1 0.9.5-1 OK
libXt6 1.0.7-1 OK
links 1.00pre20-1 OK
login 1.10-10 OK
luit 1.0.5-1 OK
lynx 2.8.5-4 OK
man 1.6e-1 OK
minires 1.02-1 OK
mkfontdir 1.0.5-1 OK
mkfontscale 1.0.7-1 OK
openssh 5.4p1-1 OK
openssl 0.9.8m-1 OK
patch 2.5.8-9 OK
patchutils 0.3.1-1 OK
perl 5.10.1-3 OK
rebase 3.0.1-1 OK
run 1.1.12-11 OK
screen 4.0.3-5 OK
sed 4.1.5-2 OK
shared-mime-info 0.70-1 OK
tar 1.22.90-1 OK
terminfo 5.7_20091114-13 OK
terminfo0 5.5_20061104-11 OK
texinfo 4.13-3 OK
tidy 041206-1 OK
time 1.7-2 OK
tzcode 2009k-1 OK
unzip 6.0-10 OK
util-linux 2.14.1-1 OK
vim 7.2.264-2 OK
wget 1.11.4-4 OK
which 2.20-2 OK
wput 0.6.1-2 OK
xauth 1.0.4-1 OK
xclipboard 1.1.0-1 OK
xcursor-themes 1.0.2-1 OK
xemacs 21.4.22-1 OK
xemacs-emacs-common 21.4.22-1 OK
xemacs-sumo 2007-04-27-1 OK
xemacs-tags 21.4.22-1 OK
xeyes 1.1.0-1 OK
xinit 1.2.1-1 OK
xinput 1.5.0-1 OK
xkbcomp 1.1.1-1 OK
xkeyboard-config 1.8-1 OK
xkill 1.0.2-1 OK
xmodmap 1.0.4-1 OK
xorg-docs 1.5-1 OK
xorg-server 1.7.6-2 OK
xrdb 1.0.6-1 OK
xset 1.1.0-1 OK
xterm 255-1 OK
xz 4.999.9beta-10 OK
zip 3.0-11 OK
zlib 1.2.3-10 OK
zlib-devel 1.2.3-10 OK
zlib0 1.2.3-10 OK
** sshd_config **
$ cat /etc/sshd_config | sed -e 's/^[ \t]\+//g' | egrep -v '^#|^[
\t]*$' # Show all lines of importance (not a comment, nor blank)
Port 22
Protocol 2
StrictModes no
RSAAuthentication yes
PubkeyAuthentication yes
AuthorizedKeysFile .ssh/authorized_keys
AllowAgentForwarding yes
AllowTcpForwarding yes
GatewayPorts yes
X11Forwarding yes
X11DisplayOffset 10
X11UseLocalhost no
TCPKeepAlive yes
UsePrivilegeSeparation yes
Subsystem sftp /usr/sbin/sftp-server
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