SSH server does not kill child processes upon logout on Windows Server 2003 install
Bruno Antunes
sardaukar.siet@gmail.com
Wed Mar 7 14:26:00 GMT 2007
Dear All,
I have installed cygwin yesterday, March 6th 2007 and I have it
running with perfect logging and even public key authentication. So
far, so good.
Today, after an initial trial use, I started getting "could not
allocate pty" errors, that can be explained by the huge amount of
ssh.exe and scp.exe processes left running on the server – they don't
take up CPU but they do take up RAM (about 2/3MB each). What can be
the problem? Restarting the service does no good – basically the
processes aren't killed when the user logs off. This can, forseeably
cause problems. The user running the service is the one created by
ssh-server-config.
sshd_config :
# $OpenBSD: sshd_config,v 1.74 2006/07/19 13:07:10 dtucker Exp $
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
# This sshd was compiled with PATH=/bin:/usr/sbin:/sbin:/usr/bin
# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented. Uncommented options change a
# default value.
Port 22
#Protocol 2,1
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::
# HostKey for protocol version 1
#HostKey /etc/ssh_host_key
# HostKeys for protocol version 2
#HostKey /etc/ssh_host_rsa_key
#HostKey /etc/ssh_host_dsa_key
# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 1h
#ServerKeyBits 768
# Logging
# obsoletes QuietMode and FascistLogging
SyslogFacility AUTH
LogLevel VERBOSE
# Authentication:
#LoginGraceTime 2m
#PermitRootLogin yes
StrictModes no
#MaxAuthTries 6
RSAAuthentication yes
PubkeyAuthentication yes
#AuthorizedKeysFile .ssh/authorized_keys
# For this to work you will also need host keys in /etc/ssh_known_hosts
#RhostsRSAAuthentication no
# similar for protocol version 2
#HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes
# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication yes
#PermitEmptyPasswords no
# Change to no to disable s/key passwords
#ChallengeResponseAuthentication yes
# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no
# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes
# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication. Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
#UsePAM no
#AllowTcpForwarding yes
#GatewayPorts no
#X11Forwarding no
#X11DisplayOffset 10
#X11UseLocalhost yes
#PrintMotd yes
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
UsePrivilegeSeparation yes
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#UseDNS yes
#PidFile /var/run/sshd.pid
#MaxStartups 10
#PermitTunnel no
# no default banner path
#Banner /some/path
# override default of no subsystems
Subsystem sftp /usr/sbin/sftp-server
# Example of overriding settings on a per-user basis
#Match User anoncvs
# X11Forwarding no
# AllowTcpForwarding no
# ForceCommand cvs server
cygchek.out :
Cygwin Configuration Diagnostics
Current System Time: Wed Mar 07 13:18:35 2007
Windows 2003 Enterprise Server Ver 5.2 Build 3790 Service Pack 1
Running in Terminal Service session
Path: C:\cygwin\usr\local\bin
C:\cygwin\bin
C:\cygwin\bin
C:\cygwin\usr\X11R6\bin
c:\Perl\bin\
c:\WINDOWS\system32
c:\WINDOWS
c:\WINDOWS\System32\WbemC
C:\cygwin\Program Files\IDM Computer Solutions\UltraEdit-32
C:\cygwin\bin
c:\WINDOWS\system32\WBEM
Output from C:\cygwin\bin\id.exe (nontsec)
UID: 12666(bantunes) GID: 10513(Domain Users)
544(Administrators) 545(Users)
11783(Administrador_Foruns) 10513(Domain Users)
12667(Equipa Gestão Problemas-Foruns) 11810(Identificacao_Fraude)
12124(TVCABOHDI_AD_Netcabo_Readers)
Output from C:\cygwin\bin\id.exe (ntsec)
UID: 12666(bantunes) GID: 10513(Domain Users)
544(Administrators) 545(Users)
11783(Administrador_Foruns) 10513(Domain Users)
12667(Equipa Gestão Problemas-Foruns) 11810(Identificacao_Fraude)
12124(TVCABOHDI_AD_Netcabo_Readers)
SysDir: C:\WINDOWS\system32
WinDir: C:\WINDOWS
USER = 'bantunes'
PWD = '/home/bantunes'
CYGWIN = 'ntsec tty'
HOME = '/home/bantunes'
MAKE_MODE = 'unix'
HOMEPATH = '\Documents and Settings\bantunes'
MANPATH = '/usr/local/man:/usr/share/man:/usr/man::/usr/ssl/man'
APPDATA = 'C:\Documents and Settings\bantunes\Application Data'
HOSTNAME = 'scripts01pc01'
TERM = 'cygwin'
PROCESSOR_IDENTIFIER = 'x86 Family 15 Model 33 Stepping 2, AuthenticAMD'
WINDIR = 'C:\WINDOWS'
DIRCMD = '/o:gn'
OLDPWD = '/usr/bin'
USERDOMAIN = 'HDIMNG'
OS = 'Windows_NT'
ALLUSERSPROFILE = 'C:\Documents and Settings\All Users'
!:: = '::\'
TEMP = '/c/DOCUME~1/bantunes/LOCALS~1/Temp/1'
COMMONPROGRAMFILES = 'C:\Program Files\Common Files'
USERNAME = 'bantunes'
CLUSTERLOG = 'C:\WINDOWS\Cluster\cluster.log'
PROCESSOR_LEVEL = '15'
FP_NO_HOST_CHECK = 'NO'
SYSTEMDRIVE = 'C:'
USERPROFILE = 'C:\Documents and Settings\bantunes'
CLIENTNAME = 'PORTINARI'
PS1 = '\[\e]0;\w\a\]\n\[\e[32m\]\u@\h \[\e[33m\]\w\[\e[0m\]\n\$ '
LOGONSERVER = '\\HDIMNG01'
PROCESSOR_ARCHITECTURE = 'x86'
!C: = 'C:\cygwin\bin'
SHLVL = '1'
USERDNSDOMAIN = 'MNG.HDI.TVCABO'
PATHEXT = '.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
HOMEDRIVE = 'C:'
PROMPT = '$P$G'
COMSPEC = 'C:\WINDOWS\system32\cmd.exe'
TMP = '/c/DOCUME~1/bantunes/LOCALS~1/Temp/1'
SYSTEMROOT = 'C:\WINDOWS'
CVS_RSH = '/bin/ssh'
PROCESSOR_REVISION = '2102'
INFOPATH = '/usr/local/info:/usr/share/info:/usr/info:'
PROGRAMFILES = 'C:\Program Files'
NUMBER_OF_PROCESSORS = '4'
SESSIONNAME = 'RDP-Tcp#154'
COMPUTERNAME = 'SCRIPTS01PC01'
_ = '/usr/bin/cygcheck'
POSIXLY_CORRECT = '1'
HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
(default) = '/'
cygdrive flags = 0x0000002a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/
(default) = 'C:\cygwin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
(default) = 'C:\cygwin/bin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
(default) = 'C:\cygwin/lib'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options
c: hd NTFS 34702Mb 86% CP CS UN PA FC
C:\cygwin / system binmode
C:\cygwin/bin /usr/bin system binmode
C:\cygwin/lib /usr/lib system binmode
. / system binmode,cygdrive
Found: C:\cygwin\bin\awk.exe
Found: C:\cygwin\bin\bash.exe
Found: C:\cygwin\bin\cat.exe
Found: C:\cygwin\bin\cp.exe
Not Found: cpp (good!)
Not Found: crontab
Found: C:\cygwin\bin\find.exe
Not Found: gcc
Not Found: gdb
Found: C:\cygwin\bin\grep.exe
Found: C:\cygwin\bin\kill.exe
Not Found: ld
Found: C:\cygwin\bin\ls.exe
Not Found: make
Found: C:\cygwin\bin\mv.exe
Not Found: patch
Found: c:\Perl\bin\perl.exe
Found: C:\cygwin\bin\rm.exe
Found: C:\cygwin\bin\sed.exe
Found: C:\cygwin\bin\ssh.exe
Found: C:\cygwin\bin\sh.exe
Found: C:\cygwin\bin\tar.exe
Found: C:\cygwin\bin\test.exe
Not Found: vi
Found: C:\cygwin\bin\vim.exe
61k 2006/11/10 C:\cygwin\bin\cygbz2-1.dll - os=4.0 img=1.0 sys=4.0
"cygbz2-1.dll" v0.0 ts=2006/11/10 23:42
7k 2003/10/19 C:\cygwin\bin\cygcrypt-0.dll - os=4.0 img=1.0 sys=4.0
"cygcrypt-0.dll" v0.0 ts=2003/10/19 8:57
1059k 2007/02/23 C:\cygwin\bin\cygcrypto-0.9.8.dll - os=4.0 img=1.0 sys=4.0
"cygcrypto-0.9.8.dll" v0.0 ts=2007/2/23 17:08
40k 2006/11/15 C:\cygwin\bin\cygform-8.dll - os=4.0 img=1.0 sys=4.0
"cygform-8.dll" v0.0 ts=2006/11/15 7:06
45k 2001/04/25 C:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
"cygform5.dll" v0.0 ts=2001/4/25 6:28
35k 2002/01/09 C:\cygwin\bin\cygform6.dll - os=4.0 img=1.0 sys=4.0
"cygform6.dll" v0.0 ts=2002/1/9 6:03
48k 2003/08/09 C:\cygwin\bin\cygform7.dll - os=4.0 img=1.0 sys=4.0
"cygform7.dll" v0.0 ts=2003/8/9 10:25
28k 2003/07/20 C:\cygwin\bin\cyggdbm-3.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm-3.dll" v0.0 ts=2003/7/20 8:58
19k 2006/11/19 C:\cygwin\bin\cyggdbm-4.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm-4.dll" v0.0 ts=2006/11/19 8:18
19k 2003/03/22 C:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm.dll" v0.0 ts=2002/2/20 3:05
15k 2003/07/20 C:\cygwin\bin\cyggdbm_compat-3.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm_compat-3.dll" v0.0 ts=2003/7/20 9:00
8k 2006/11/19 C:\cygwin\bin\cyggdbm_compat-4.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm_compat-4.dll" v0.0 ts=2006/11/19 8:18
17k 2001/06/28 C:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
"cyghistory4.dll" v0.0 ts=2001/1/7 4:34
29k 2003/08/10 C:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
"cyghistory5.dll" v0.0 ts=2003/8/11 0:16
25k 2007/01/18 C:\cygwin\bin\cyghistory6.dll - os=4.0 img=1.0 sys=4.0
"cyghistory6.dll" v0.0 ts=2007/1/18 3:14
976k 2006/10/22 C:\cygwin\bin\cygiconv-2.dll - os=4.0 img=1.0 sys=4.0
"cygiconv-2.dll" v0.0 ts=2006/10/23 0:44
22k 2001/12/13 C:\cygwin\bin\cygintl-1.dll - os=4.0 img=1.0 sys=4.0
"cygintl-1.dll" v0.0 ts=2001/12/13 9:28
37k 2003/08/10 C:\cygwin\bin\cygintl-2.dll - os=4.0 img=1.0 sys=4.0
"cygintl-2.dll" v0.0 ts=2003/8/10 22:50
31k 2005/11/20 C:\cygwin\bin\cygintl-3.dll - os=4.0 img=1.0 sys=4.0
"cygintl-3.dll" v0.0 ts=2005/11/20 2:04
31k 2006/10/23 C:\cygwin\bin\cygintl-8.dll - os=4.0 img=1.0 sys=4.0
"cygintl-8.dll" v0.0 ts=2006/10/23 1:12
21k 2001/06/20 C:\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0
"cygintl.dll" v0.0 ts=2001/6/20 18:09
21k 2006/11/15 C:\cygwin\bin\cygmenu-8.dll - os=4.0 img=1.0 sys=4.0
"cygmenu-8.dll" v0.0 ts=2006/11/15 7:05
26k 2001/04/25 C:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
"cygmenu5.dll" v0.0 ts=2001/4/25 6:27
20k 2002/01/09 C:\cygwin\bin\cygmenu6.dll - os=4.0 img=1.0 sys=4.0
"cygmenu6.dll" v0.0 ts=2002/1/9 6:03
29k 2003/08/09 C:\cygwin\bin\cygmenu7.dll - os=4.0 img=1.0 sys=4.0
"cygmenu7.dll" v0.0 ts=2003/8/9 10:25
20k 2006/12/21 C:\cygwin\bin\cygminires.dll - os=4.0 img=1.1 sys=4.0
"cygminires.dll" v0.0 ts=2006/12/21 5:07
67k 2006/11/15 C:\cygwin\bin\cygncurses++-8.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++-8.dll" v0.0 ts=2006/11/15 7:13
156k 2001/04/25 C:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++5.dll" v0.0 ts=2001/4/25 6:29
175k 2002/01/09 C:\cygwin\bin\cygncurses++6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++6.dll" v0.0 ts=2002/1/9 6:03
237k 2006/11/15 C:\cygwin\bin\cygncurses-8.dll - os=4.0 img=1.0 sys=4.0
"cygncurses-8.dll" v0.0 ts=2006/11/15 7:02
226k 2001/04/25 C:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses5.dll" v0.0 ts=2001/4/25 6:17
202k 2002/01/09 C:\cygwin\bin\cygncurses6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses6.dll" v0.0 ts=2002/1/9 6:03
224k 2003/08/09 C:\cygwin\bin\cygncurses7.dll - os=4.0 img=1.0 sys=4.0
"cygncurses7.dll" v0.0 ts=2003/8/9 10:24
12k 2006/11/15 C:\cygwin\bin\cygpanel-8.dll - os=4.0 img=1.0 sys=4.0
"cygpanel-8.dll" v0.0 ts=2006/11/15 7:04
15k 2001/04/25 C:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
"cygpanel5.dll" v0.0 ts=2001/4/25 6:27
12k 2002/01/09 C:\cygwin\bin\cygpanel6.dll - os=4.0 img=1.0 sys=4.0
"cygpanel6.dll" v0.0 ts=2002/1/9 6:03
19k 2003/08/09 C:\cygwin\bin\cygpanel7.dll - os=4.0 img=1.0 sys=4.0
"cygpanel7.dll" v0.0 ts=2003/8/9 10:24
109k 2006/02/10 C:\cygwin\bin\cygpcre-0.dll - os=4.0 img=1.0 sys=4.0
"cygpcre-0.dll" v0.0 ts=2006/2/10 2:37
299k 2006/02/10 C:\cygwin\bin\cygpcrecpp-0.dll - os=4.0 img=1.0 sys=4.0
"cygpcrecpp-0.dll" v0.0 ts=2006/2/10 2:38
7k 2006/02/10 C:\cygwin\bin\cygpcreposix-0.dll - os=4.0 img=1.0 sys=4.0
"cygpcreposix-0.dll" v0.0 ts=2006/2/10 2:37
22k 2002/06/09 C:\cygwin\bin\cygpopt-0.dll - os=4.0 img=1.0 sys=4.0
"cygpopt-0.dll" v0.0 ts=2002/6/9 6:45
108k 2001/06/28 C:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
"cygreadline4.dll" v0.0 ts=2001/1/7 4:34
148k 2003/08/10 C:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
"cygreadline5.dll" v0.0 ts=2003/8/11 0:16
154k 2007/01/18 C:\cygwin\bin\cygreadline6.dll - os=4.0 img=1.0 sys=4.0
"cygreadline6.dll" v0.0 ts=2007/1/18 3:14
217k 2007/02/23 C:\cygwin\bin\cygssl-0.9.8.dll - os=4.0 img=1.0 sys=4.0
"cygssl-0.9.8.dll" v0.0 ts=2007/2/23 17:08
65k 2006/10/16 C:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2006/10/16 2:10
1830k 2007/01/31 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2007/1/31 9:58
Cygwin DLL version info:
DLL version: 1.5.24
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 156
Shared data: 4
DLL identifier: cygwin1
Mount registry: 2
Cygnus registry name: Cygnus Solutions
Cygwin registry name: Cygwin
Program options name: Program Options
Cygwin mount registry name: mounts v2
Cygdrive flags: cygdrive flags
Cygdrive prefix: cygdrive prefix
Cygdrive default prefix:
Build date: Wed Jan 31 10:57:51 CET 2007
CVS tag: cr-0x5f1
Shared id: cygwin1S4
Service : sshd
Display name : CYGWIN sshd
Current State : Running
Controls Accepted : Stop
Command : /usr/sbin/sshd -D
stdin path : /dev/null
stdout path : /var/log/sshd.log
stderr path : /var/log/sshd.log
Environment : CYGWIN="ntsec tty"
Process Type : Own Process
Startup : Automatic
Dependencies : tcpip
Account : .\sshd_server
Cygwin Package Information
Last downloaded files to: C:\Documents and Settings\bantunes\Desktop\cyg-pgks
Last downloaded files from:
http://bo.mirror.garr.it/mirrors/sourceware.org/cygwin
Package Version
_update-info-dir 00501-1
alternatives 1.3.29a-1
ash 20040127-3
base-files 3.7-1
base-passwd 2.2-1
bash 3.2.9-11
bzip2 1.0.3-2
coreutils 6.7-2
crypt 1.1-1
cygrunsrv 1.17-1
cygutils 1.3.1-1
cygwin 1.5.24-2
cygwin-doc 1.4-4
diffutils 2.8.7-1
editrights 1.01-1
findutils 4.3.2-3
gawk 3.1.5-4
gdbm 1.8.3-8
grep 2.5.1a-2
groff 1.18.1-2
gzip 1.3.9-1
less 381-1
libbz2_1 1.0.3-2
libgdbm 1.8.0-5
libgdbm-devel 1.8.3-8
libgdbm3 1.8.3-3
libgdbm4 1.8.3-8
libiconv2 1.11-1
libintl 0.10.38-3
libintl1 0.10.40-1
libintl2 0.12.1-3
libintl3 0.14.5-1
libintl8 0.15-1
libncurses5 5.2-1
libncurses6 5.2-8
libncurses7 5.3-4
libncurses8 5.5-3
libpcre0 6.6-1
libpopt0 1.6.4-4
libreadline4 4.1-2
libreadline5 4.3-5
libreadline6 5.2.1-6
login 1.9-7
man 1.6d-2
minires 1.01-1
mktemp 1.5-4
ncurses 5.5-3
openssh 4.5p1-1
openssl 0.9.8e-1
run 1.1.10-1
sed 4.1.5-2
tar 1.16.1-1
tcp_wrappers 7.6-1
termcap 20050421-1
terminfo 5.5_20061104-1
texinfo 4.8-4
vim 7.0.122-1
which 1.7-1
zlib 1.2.3-2
Use -h to see help about each section
Thanks for any help!
--
sardaukar_siet
http://iruel.net
---------------------------------------
Israfel's Retreat BBS
Fidonet 2:550/36
ssh://sbbs:sbbs@twinturbo.ath.cx
More information about the Cygwin
mailing list