Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Date: Fri, 31 Oct 2003 12:07:37 +0100 From: Corinna Vinschen To: cygwin AT cygwin DOT com Subject: RE: Testers for new ssh-*-config scripts wanted! Message-ID: <20031031110737.GC3531@cygbert.vinschen.de> Reply-To: cygwin AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com References: <20031030171056 DOT GB5249 AT cygbert DOT vinschen DOT de> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="mYCpIKhGyMATD0i+" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i --mYCpIKhGyMATD0i+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Fri, Oct 31, 2003 at 09:55:04AM +0100, Philippe Torche wrote: > Script ssh-host-config works for me, but when I've entered the CYGWIN env > var, I've do a error and type "ntser", then backspace and then the correct > "c" caracters. > Thus CYGWIN key in the registry has now "ntser\x08c" instead of "ntsec"! > This is caused by the read command! Yeah, but that's not a fault of the script but of the shell. Nothing I can do about in the script. Except if I require the script to run under bash instead of sh, to allow readline support. Would that be acceptable? I have attached a new version of ssh-host-config to this mail, which requires bash now. If that's not ok, it's easy to revert again. I've also attached the two vanilla files ssh_config and sshd_config to put into /etc/defaults/etc. This should simplify testing. Changed in this version of ssh-host-config: - Require bash. - Remove annoying backslashes when echoing a bang (!). - Allow /var/log/lastlog to be a directory (But that can again create problems with permissions, Pierre!) Please don't forget to test ssh-user-config, too. Thanks. > PS Wait for a "Windows 2003 Server" version You know, PGA and PTC. See wtf ;-) Thanks to all testers, Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Developer mailto:cygwin AT cygwin DOT com Red Hat, Inc. --mYCpIKhGyMATD0i+ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=ssh-host-config #!/bin/bash # # ssh-host-config, Copyright 2000, 2001, 2002, 2003 Red Hat Inc. # # This file is part of the Cygwin port of OpenSSH. # Subdirectory where the new package is being installed PREFIX=/usr # Directory where the config files are stored SYSCONFDIR=/etc LOCALSTATEDIR=/var progname=$0 auto_answer="" port_number=22 privsep_configured=no privsep_used=yes sshd_in_passwd=no sshd_in_sam=no request() { if [ "${auto_answer}" = "yes" ] then return 0 elif [ "${auto_answer}" = "no" ] then return 1 fi answer="" while [ "X${answer}" != "Xyes" -a "X${answer}" != "Xno" ] do echo -n "$1 (yes/no) " read answer done if [ "X${answer}" = "Xyes" ] then return 0 else return 1 fi } # Check options while : do case $# in 0) break ;; esac option=$1 shift case "$option" in -d | --debug ) set -x ;; -y | --yes ) auto_answer=yes ;; -n | --no ) auto_answer=no ;; -p | --port ) port_number=$1 shift ;; *) echo "usage: ${progname} [OPTION]..." echo echo "This script creates an OpenSSH host configuration." echo echo "Options:" echo " --debug -d Enable shell's debug output." echo " --yes -y Answer all questions with \"yes\" automatically." echo " --no -n Answer all questions with \"no\" automatically." echo " --port -p sshd listens on port n." echo exit 1 ;; esac done # Check if running on NT _sys="`uname -a`" _nt=`expr "$_sys" : "CYGWIN_NT"` # Check for running ssh/sshd processes first. Refuse to do anything while # some ssh processes are still running if ps -ef | grep -v grep | grep -q ssh then echo echo "There are still ssh processes running. Please shut them down first." echo exit 1 fi # Check for ${SYSCONFDIR} directory if [ -e "${SYSCONFDIR}" -a ! -d "${SYSCONFDIR}" ] then echo echo "${SYSCONFDIR} is existant but not a directory." echo "Cannot create global configuration files." echo exit 1 fi # Create it if necessary if [ ! -e "${SYSCONFDIR}" ] then mkdir "${SYSCONFDIR}" if [ ! -e "${SYSCONFDIR}" ] then echo echo "Creating ${SYSCONFDIR} directory failed" echo exit 1 fi fi # Create /var/log and /var/log/lastlog if not already existing if [ -f ${LOCALSTATEDIR}/log ] then echo "Creating ${LOCALSTATEDIR}/log failed!" else if [ ! -d ${LOCALSTATEDIR}/log ] then mkdir -p ${LOCALSTATEDIR}/log fi if [ -d ${LOCALSTATEDIR}/log/lastlog ] then chmod 777 ${LOCALSTATEDIR}/log/lastlog elif [ ! -f ${LOCALSTATEDIR}/log/lastlog ] then cat /dev/null > ${LOCALSTATEDIR}/log/lastlog chmod 666 ${LOCALSTATEDIR}/log/lastlog fi fi # Create /var/empty file used as chroot jail for privilege separation if [ -f ${LOCALSTATEDIR}/empty ] then echo "Creating ${LOCALSTATEDIR}/empty failed!" else mkdir -p ${LOCALSTATEDIR}/empty if [ $_nt -gt 0 ] then chmod 755 ${LOCALSTATEDIR}/empty fi fi # First generate host keys if not already existing if [ ! -f "${SYSCONFDIR}/ssh_host_key" ] then echo "Generating ${SYSCONFDIR}/ssh_host_key" ssh-keygen -t rsa1 -f ${SYSCONFDIR}/ssh_host_key -N '' > /dev/null fi if [ ! -f "${SYSCONFDIR}/ssh_host_rsa_key" ] then echo "Generating ${SYSCONFDIR}/ssh_host_rsa_key" ssh-keygen -t rsa -f ${SYSCONFDIR}/ssh_host_rsa_key -N '' > /dev/null fi if [ ! -f "${SYSCONFDIR}/ssh_host_dsa_key" ] then echo "Generating ${SYSCONFDIR}/ssh_host_dsa_key" ssh-keygen -t dsa -f ${SYSCONFDIR}/ssh_host_dsa_key -N '' > /dev/null fi # Check if ssh_config exists. If yes, ask for overwriting if [ -f "${SYSCONFDIR}/ssh_config" ] then if request "Overwrite existing ${SYSCONFDIR}/ssh_config file?" then rm -f "${SYSCONFDIR}/ssh_config" if [ -f "${SYSCONFDIR}/ssh_config" ] then echo "Can't overwrite. ${SYSCONFDIR}/ssh_config is write protected." fi fi fi # Create default ssh_config from skeleton file in /etc/defaults/etc if [ ! -f "${SYSCONFDIR}/ssh_config" ] then echo "Generating ${SYSCONFDIR}/ssh_config file" cp ${SYSCONFDIR}/defaults/etc/ssh_config ${SYSCONFDIR}/ssh_config if [ "$port_number" != "22" ] then echo "Host localhost" >> ${SYSCONFDIR}/ssh_config echo " Port $port_number" >> ${SYSCONFDIR}/ssh_config fi fi # Check if sshd_config exists. If yes, ask for overwriting if [ -f "${SYSCONFDIR}/sshd_config" ] then if request "Overwrite existing ${SYSCONFDIR}/sshd_config file?" then rm -f "${SYSCONFDIR}/sshd_config" if [ -f "${SYSCONFDIR}/sshd_config" ] then echo "Can't overwrite. ${SYSCONFDIR}/sshd_config is write protected." fi else grep -q UsePrivilegeSeparation ${SYSCONFDIR}/sshd_config && privsep_configured=yes fi fi # Prior to creating or modifying sshd_config, care for privilege separation if [ "$privsep_configured" != "yes" ] then if [ $_nt -gt 0 ] then echo "Privilege separation is set to yes by default since OpenSSH 3.3." echo "However, this requires a non-privileged account called 'sshd'." echo "For more info on privilege separation read /usr/doc/openssh/README.privsep." echo if request "Shall privilege separation be used?" then privsep_used=yes grep -q '^sshd:' ${SYSCONFDIR}/passwd && sshd_in_passwd=yes net user sshd >/dev/null 2>&1 && sshd_in_sam=yes if [ "$sshd_in_passwd" != "yes" ] then if [ "$sshd_in_sam" != "yes" ] then echo "Warning: The following function requires administrator privileges!" if request "Shall this script create a local user 'sshd' on this machine?" then dos_var_empty=`cygpath -w ${LOCALSTATEDIR}/empty` net user sshd /add /fullname:"sshd privsep" "/homedir:$dos_var_empty" /active:no > /dev/null 2>&1 && sshd_in_sam=yes if [ "$sshd_in_sam" != "yes" ] then echo "Warning: Creating the user 'sshd' failed!" fi fi fi if [ "$sshd_in_sam" != "yes" ] then echo "Warning: Can't create user 'sshd' in ${SYSCONFDIR}/passwd!" echo " Privilege separation set to 'no' again!" echo " Check your ${SYSCONFDIR}/sshd_config file!" privsep_used=no else mkpasswd -l -u sshd | sed -e 's/bash$/false/' >> ${SYSCONFDIR}/passwd fi fi else privsep_used=no fi else # On 9x don't use privilege separation. Since security isn't # available it just adds useless additional processes. privsep_used=no fi fi # Create default sshd_config from skeleton files in /etc/defaults/etc or # modify to add the missing privsep configuration option if [ ! -f "${SYSCONFDIR}/sshd_config" ] then echo "Generating ${SYSCONFDIR}/sshd_config file" sed -e "s/^#UsePrivilegeSeparation yes/UsePrivilegeSeparation $privsep_used/ s/^#Port 22/Port $port_number/ s/^#StrictModes yes/StrictModes no/" \ < ${SYSCONFDIR}/defaults/etc/sshd_config \ > ${SYSCONFDIR}/sshd_config elif [ "$privsep_configured" != "yes" ] then echo >> ${SYSCONFDIR}/sshd_config echo "UsePrivilegeSeparation $privsep_used" >> ${SYSCONFDIR}/sshd_config fi # Care for services file _my_etcdir="/ssh-host-config.$$" if [ $_nt -gt 0 ] then _win_etcdir="${SYSTEMROOT}\\system32\\drivers\\etc" _services="${_my_etcdir}/services" else _win_etcdir="${WINDIR}" _services="${_my_etcdir}/SERVICES" fi _serv_tmp="${_my_etcdir}/srv.out.$$" mount -t -f "${_win_etcdir}" "${_my_etcdir}" # Depends on the above mount _wservices=`cygpath -w "${_services}"` # Remove sshd 22/port from services if [ `grep -q 'sshd[ \t][ \t]*22' "${_services}"; echo $?` -eq 0 ] then grep -v 'sshd[ \t][ \t]*22' "${_services}" > "${_serv_tmp}" if [ -f "${_serv_tmp}" ] then if mv "${_serv_tmp}" "${_services}" then echo "Removing sshd from ${_wservices}" else echo "Removing sshd from ${_wservices} failed!" fi rm -f "${_serv_tmp}" else echo "Removing sshd from ${_wservices} failed!" fi fi # Add ssh 22/tcp and ssh 22/udp to services if [ `grep -q 'ssh[ \t][ \t]*22' "${_services}"; echo $?` -ne 0 ] then awk '{ if ( $2 ~ /^23\/tcp/ ) print "ssh 22/tcp #SSH Remote Login Protocol\nssh 22/udp #SSH Remote Login Protocol"; print $0; }' < "${_services}" > "${_serv_tmp}" if [ -f "${_serv_tmp}" ] then if mv "${_serv_tmp}" "${_services}" then echo "Added ssh to ${_wservices}" else echo "Adding ssh to ${_wservices} failed!" fi rm -f "${_serv_tmp}" else echo "Adding ssh to ${_wservices} failed!" fi fi umount "${_my_etcdir}" # Care for inetd.conf file _inetcnf="${SYSCONFDIR}/inetd.conf" _inetcnf_tmp="${SYSCONFDIR}/inetd.conf.$$" if [ -f "${_inetcnf}" ] then # Check if ssh service is already in use as sshd with_comment=1 grep -q '^[ \t]*sshd' "${_inetcnf}" && with_comment=0 # Remove sshd line from inetd.conf if [ `grep -q '^[# \t]*sshd' "${_inetcnf}"; echo $?` -eq 0 ] then grep -v '^[# \t]*sshd' "${_inetcnf}" >> "${_inetcnf_tmp}" if [ -f "${_inetcnf_tmp}" ] then if mv "${_inetcnf_tmp}" "${_inetcnf}" then echo "Removed sshd from ${_inetcnf}" else echo "Removing sshd from ${_inetcnf} failed!" fi rm -f "${_inetcnf_tmp}" else echo "Removing sshd from ${_inetcnf} failed!" fi fi # Add ssh line to inetd.conf if [ `grep -q '^[# \t]*ssh' "${_inetcnf}"; echo $?` -ne 0 ] then if [ "${with_comment}" -eq 0 ] then echo 'ssh stream tcp nowait root /usr/sbin/sshd sshd -i' >> "${_inetcnf}" else echo '# ssh stream tcp nowait root /usr/sbin/sshd sshd -i' >> "${_inetcnf}" fi echo "Added ssh to ${_inetcnf}" fi fi # On NT ask if sshd should be installed as service if [ $_nt -gt 0 ] then echo echo "Do you want to install sshd as service?" if request "(Say \"no\" if it's already installed as service)" then echo echo "Which value should the environment variable CYGWIN have when" echo "sshd starts? It's recommended to set at least \"ntsec\" to be" echo "able to change user context without password." echo -n "Default is \"ntsec\". CYGWIN=" read _cygwin [ -z "${_cygwin}" ] && _cygwin="ntsec" if cygrunsrv -I sshd -d "CYGWIN sshd" -p /usr/sbin/sshd -a -D -e "CYGWIN=${_cygwin}" then echo echo "The service has been installed under LocalSystem account." fi fi # Now check if sshd has been installed as service. This allows to # set the ownership of the affected files correctly. # # NOTE: This doesn't work flawlessly so far on Windows 2003 Server. # The SYSTEM account on 2003 has not the appropriate privileges to allow # passwordless logon (pubkey authentication). This requires to run the # service under a special account, which has administrator privileges # plus (at least, AFAIK) the SeCreateTokenPrivilege. # The next step will be, to extend this script to create an approriate # account for that, using the new editrights tool. if cygrunsrv -Q sshd > /dev/null 2>&1 then chown system ${SYSCONFDIR}/ssh* chown system.system ${LOCALSTATEDIR}/empty if [ -f ${LOCALSTATEDIR}/log/sshd.log ] then chown system.system ${LOCALSTATEDIR}/log/sshd.log fi fi fi echo echo "Host configuration finished. Have fun!" --mYCpIKhGyMATD0i+ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=ssh_config # $OpenBSD: ssh_config,v 1.19 2003/08/13 08:46:31 markus Exp $ # This is the ssh client system-wide configuration file. See # ssh_config(5) for more information. This file provides defaults for # users, and the values can be changed in per-user configuration files # or on the command line. # Configuration data is parsed as follows: # 1. command line options # 2. user-specific file # 3. system-wide file # Any configuration value is only changed the first time it is set. # Thus, host-specific definitions should be at the beginning of the # configuration file, and defaults at the end. # Site-wide defaults for various options # Host * # ForwardAgent no # ForwardX11 no # RhostsRSAAuthentication no # RSAAuthentication yes # PasswordAuthentication yes # HostbasedAuthentication no # BatchMode no # CheckHostIP yes # AddressFamily any # ConnectTimeout 0 # StrictHostKeyChecking ask # IdentityFile ~/.ssh/identity # IdentityFile ~/.ssh/id_rsa # IdentityFile ~/.ssh/id_dsa # Port 22 # Protocol 2,1 # Cipher 3des # Ciphers aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc # EscapeChar ~ --mYCpIKhGyMATD0i+ Content-Type: text/plain; charset=us-ascii Content-Disposition: attachment; filename=sshd_config # $OpenBSD: sshd_config,v 1.65 2003/08/28 12:54:34 markus Exp $ # This is the sshd server system-wide configuration file. See # sshd_config(5) for more information. # This sshd was compiled with PATH=/usr/bin:/bin:/usr/sbin:/sbin # 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 #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 INFO # Authentication: #LoginGraceTime 2m #PermitRootLogin yes #StrictModes yes #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 # GSSAPI options #GSSAPIAuthentication no #GSSAPICleanupCreds yes # Set this to 'yes' to enable PAM authentication (via challenge-response) # and session processing. Depending on your PAM configuration, this may # bypass the setting of 'PasswordAuthentication' #UsePAM yes #AllowTcpForwarding yes #GatewayPorts no #X11Forwarding no #X11DisplayOffset 10 #X11UseLocalhost yes #PrintMotd yes #PrintLastLog yes #KeepAlive yes #UseLogin no #UsePrivilegeSeparation yes #PermitUserEnvironment no #Compression yes #ClientAliveInterval 0 #ClientAliveCountMax 3 #UseDNS yes #PidFile /var/run/sshd.pid #MaxStartups 10 # no default banner path #Banner /some/path # override default of no subsystems Subsystem sftp /usr/sbin/sftp-server --mYCpIKhGyMATD0i+ Content-Type: text/plain; charset=us-ascii -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ --mYCpIKhGyMATD0i+--