conf/72901: [PATCH]: Prevent printing when doing an scp (printing breaks SCP).

[William Michael Grim]

The following reply was made to PR conf/72901; it has been noted by GNATS.

From: William Michael Grim <wgrim at siue.edu>
To: Kris Kennaway <kris at obsecurity.org>
Cc: FreeBSD-gnats-submit at FreeBSD.org
Subject: Re: conf/72901: [PATCH]: Prevent printing when doing an scp (printing breaks SCP).
Date: Tue, 19 Oct 2004 21:53:27 -0500

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 Happens even when I scp to a linux server that has a .profile or .bashrc that
 outputs information.  I have included my sshd_config from the FBSD system.
 
 
 On Tue, Oct 19, 2004 at 07:26:53PM -0700, Kris Kennaway wrote:
 > On Tue, Oct 19, 2004 at 08:42:35PM -0500, William Michael Grim wrote:
 > > 
 > > >Number:         72901
 > > >Category:       conf
 > > >Synopsis:       [PATCH]: Prevent printing when doing an scp (printing breaks SCP).
 > > >Confidential:   no
 > > >Severity:       non-critical
 > > >Priority:       low
 > > >Responsible:    freebsd-bugs
 > > >State:          open
 > > >Quarter:        
 > > >Keywords:       
 > > >Date-Required:
 > > >Class:          sw-bug
 > > >Submitter-Id:   current-users
 > > >Arrival-Date:   Wed Oct 20 01:50:24 GMT 2004
 > > >Closed-Date:
 > > >Last-Modified:
 > > >Originator:     William Michael Grim
 > > >Release:        FreeBSD 5.3-BETA7 i386
 > > >Organization:
 > > Southern Illinois University at Edwardsville
 > > >Environment:
 > > System: FreeBSD siue.dnsalias.net 5.3-BETA7 FreeBSD 5.3-BETA7 #3: Mon Oct 18 23:46:43 CDT 2004 root at siue.dnsalias.net:/usr/obj/usr/src/sys/FREEBSD i386
 > > 
 > > 
 > > >Description:
 > > 	When a user tries to 'scp' to another machine that is outputting
 > > 	fortunes, as bash does by default on FreeBSD, then scp will exit,
 > > 	printing only the first line of output instead of copying files.
 > > >How-To-Repeat:
 > > 	Have a host to which you are trying to scp print some lines to stdout
 > > 	through .profile or .bashrc.
 > 
 > Are you sure?  What is your sshd_config on that machine?
 > 
 > Kris
 
 -- 
 William Michael Grim
 Student, Southern Illinois University at Edwardsville
 Unix Network Administrator, SIUE, Computer Science dept.
 Phone: (217) 341-6552
 Email: wgrim at siue.edu
 
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 Content-Disposition: attachment; filename=sshd_config
 
 #	$OpenBSD: sshd_config,v 1.68 2003/12/29 16:39:50 millert Exp $
 #	$FreeBSD: src/crypto/openssh/sshd_config,v 1.40 2004/04/20 09:37:29 des 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.
 
 # Note that some of FreeBSD's defaults differ from OpenBSD's, and
 # FreeBSD has a few additional options.
 
 #VersionAddendum FreeBSD-20040419
 
 Port 22
 Protocol 2
 #ListenAddress 0.0.0.0
 #ListenAddress ::
 
 # HostKey for protocol version 1
 #HostKey /etc/ssh/ssh_host_key
 # HostKeys for protocol version 2
 #HostKey /etc/ssh/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 no
 #StrictModes yes
 
 #RSAAuthentication yes
 #PubkeyAuthentication yes
 #AuthorizedKeysFile	.ssh/authorized_keys
 
 # For this to work you will also need host keys in /etc/ssh/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
 
 # Change to yes to enable built-in password authentication.
 #PasswordAuthentication no
 #PermitEmptyPasswords no
 
 # Change to no to disable PAM authentication
 #ChallengeResponseAuthentication yes
 
 # Kerberos options
 #KerberosAuthentication no
 #KerberosOrLocalPasswd yes
 #KerberosTicketCleanup yes
 #KerberosGetAFSToken no
 
 # GSSAPI options
 #GSSAPIAuthentication no
 #GSSAPICleanupCredentials yes
 
 # Set this to 'no' to disable PAM authentication (via challenge-response)
 # and session processing.
 #UsePAM yes
 
 #AllowTcpForwarding yes
 #GatewayPorts no
 #X11Forwarding yes
 #X11DisplayOffset 10
 #X11UseLocalhost yes
 #PrintMotd yes
 #PrintLastLog yes
 #TCPKeepAlive yes
 #UseLogin no
 #UsePrivilegeSeparation yes
 #PermitUserEnvironment no
 #Compression yes
 #ClientAliveInterval 0
 #ClientAliveCountMax 3
 UseDNS no
 #PidFile /var/run/sshd.pid
 #MaxStartups 10
 
 # no default banner path
 #Banner /some/path
 
 # override default of no subsystems
 Subsystem	sftp	/usr/libexec/sftp-server
 
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