search for: forcecommand

Hello, I am trying to force a command for all users *except* for users in the "wheel" group. My idea was to do the following in sshd_config: ForceCommand /usr/bin/validate-ssh-command Match Group wheel ForceCommand But obviously this doesn't work, because ForceCommand requires an argument. I couldn't find a way to achieve what I want. I wrote a patch that adds a "NoForceCommand" configuration option that removes any configur...

...me users as sftp-only chroot accounts. The following configuration yields exactly the result I want: user is chrooted, logs to syslog, all is good. #================================================# Subsystem sftp internal-sftp -f AUTHPRIV -l VERBOSE Match User fredwww ChrootDirectory %h #ForceCommand internal-sftp #================================================# If I un-comment ForceCommand internal-sftp, syslog no longer logs activity from internal-sftp. I have the <CHROOT_DIR>/dev/log setup with my syslog, and as I said, without ForceCommand it works fine. I looked through the s...

https://bugzilla.mindrot.org/show_bug.cgi?id=1527 Summary: ForceCommand internal-sftp needs a way to enable logging Product: Portable OpenSSH Version: 5.1p1 Platform: Itanium2 OS/Version: HP-UX Status: NEW Severity: minor Priority: P4 Component: sftp-server Assi...

...and password -????????? shell users have to authenticate with private key. ? I put Into the sshd_config global section: PasswordAuthentication no ? and the end of the sshd_config: Subsystem?????? sftp??? internal-sftp ? Match Group admin ??? AllowTCPForwarding yes ??? X11Forwarding yes ??? ForceCommand bash ? Match Group sftp-only ??? PasswordAuthentication yes ??? AllowTCPForwarding no ??? X11Forwarding no ??? ForceCommand internal-sftp ? This config works well for SFTP users ? but if a user is a member of both group, the SFTP client fails to connect. Obviously because of the ForceCommand....

Hi All First of all apologize for my bad English ? it is not my native language. I'm using ssh for my everyday work. And I have noticed strange behaviour in sshd daemon. In sshd_config file there is option ForceCommand, and if I'm making sftp connection it look like command is also executed, I receive error message and connection is lost. In my opinion ForceCommand should not be considered when subsystem is activated. I have made a patch (please see attached file) it will probably solve the problem. B...

https://bugzilla.mindrot.org/show_bug.cgi?id=2281 Bug ID: 2281 Summary: sshd accepts empty arguments in ForceCommand and VersionAddendum Product: Portable OpenSSH Version: 6.6p1 Hardware: Other OS: Linux Status: NEW Severity: normal Priority: P5 Component: sshd Assignee: unassigned-bugs at mindro...

> > On Mar 22, 2008, at 3:32 PM, Chris Wilson wrote: > > > >> As I understand the "ForceCommand" in the sshd_confing file is meant to > >> ignore any command supplied by the client, but if user's home is shared > >> by server and client machines over network (ex. NFS) then user can > >> still put something else into ~/.ssh/rc file and overcome this > &gt...

...sh secured by rrsync or > rsyncd over ssh with them managing the rsyncd.conf file. Either way > the server side command would be forced and no other ssh > functionality > would be allowed. <snip> > I am thinking of something like this with in sshd_config with > whichever ForceCommand they would pick: > > Match Group backupusers > X11Forwarding no > AllowTcpForwarding no > ForceCommand /usr/bin/rsync --server --daemon . > ForceCommand /usr/bin/rrsync-wrapper > > Note that a wrapper or modification would be needed for rrsync since > sshd_confi...

...ell access and not to > allow access to other parts of the system. > > Currently rsync and old scp has been restricted using a restricted > shell configuration. But of course that does not limit sftp. And of > course sftp can be chrooted which would work okay for us. Use the > ForceCommand internal-sftp configuration to put the process in a > chroot. But then that configuration blocks rsync. > > Match ... other stuff > Match ALL > ChrootDirectory /releases > ForceCommand internal-sftp > AllowTcpForwarding no > X11Forwa...

Hello List, I'am using the ForceCommand in my sshd configuration to log all the user actions on my device. ForceCommand /usr/bin/log-session.sh The Log Session Script itself is working fine for logging. But now I want also use SCP to copy files and this won't work together with the ForceCommand above. The copied file is created b...

https://bugzilla.mindrot.org/show_bug.cgi?id=2486 Bug ID: 2486 Summary: allow ForceCommand none or similar Product: Portable OpenSSH Version: -current Hardware: All OS: All Status: NEW Severity: enhancement Priority: P5 Component: sshd Assignee: unassigned-bugs at mindrot.org Repo...

I've hit two roadblocks while using openssh -D as a general proxy: - openssh doesn't have an internal-null, so the options are to either give the user account a real shell and ForceCommand, or set the shell to something like /bin/cat and ChrootDirectory. I don't want proxy-only accounts to have a shell at all. - Comparing mini-httpd SSL/aes256 vs mini-httpd (localhost/no SSL) via openssh -D/aes256 shows a c. 20% speed penalty on urandom blocks. Is this expected?

I would like to implement an arbitrary script to be executed when logging on via SSH. This is supposedly possible using the ForceCommand option to sshd. However, as soon as I implement any script, even as simple as echoing a string, clients can no longer connect to the server. Clients report only that the connection was dropped by the server. The server, in debug mode, shows: Feb 17 16:14:01 is-rhsat-lv02 sshd[13008]: Starting sess...

Hi, As I understand the "ForceCommand" in the sshd_confing file is meant to ignore any command supplied by the client, but if user's home is shared by server and client machines over network (ex. NFS) then user can still put something else into ~/.ssh/rc file and overcome this limitation. Is it possible to disable execution of...

Hi, This patch makes things like ForceCommand internal-sftp -l INFO work (current code in 5.1 would just end the session). Please consider for inclusion into mainline. Michael. --- /var/tmp/session.c 2008-08-18 21:07:10.000000000 -0700 +++ session.c 2008-08-18 21:12:51.000000000 -0700 @@ -781,7 +781,7 @@ if (options.adm_forced_com...

Hallo. If `sshd` is configured to have a ForceCommand, no `ssh ?N` must skip this *forced* server?s setup, isn?t it? But it isn?t so. Thus, admin may think that the command is forced by a server, but user can skip that. In such case only port forwarding is available, but anyway *force* is meaningless, IMHO. -- sed 'sed && sh + olecom =...

https://bugzilla.mindrot.org/show_bug.cgi?id=1599 Summary: "ForceCommand internal-sftp" not working as expected Product: Portable OpenSSH Version: 5.2p1 Platform: ix86 OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: sshd AssignedTo: unassigned-bugs at min...

...en -s ca-key -I certN -n user -O force-command="wget something" -V +10d user-key.pub and it works as expected. This way, if the certificate is stolen, it can only be used to execute that command (also the CA is only trusted from some hosts, no root login, etc). We also want to use "ForceCommand" option on the server (inside a "Match" section) to put a wrapper that checks commands executed for this CA. If a rogue certificate is issued, at least we can control what is executed. However, as the command is embedded inside the certificate, the server passes an empty "SSH_OR...

Lesley Kimmel <lesley.j.kimmel at gmail.com> writes: > So I probably shouldn't have said "arbitrary" script. What I really > want to do is to present a terms of service notice (/etc/issue). But I > also want to get the user to actually confirm (by typing 'y') that > they accept. If they try to exit or type anything other than 'y' they > will be

> /usr/sbin/sshd -oForceCommand=internal-sftp > sftp user at host # This connects as expected. > ssh user at host # This hangs...at least from an end-user's perspective. It would be ideal if the connection terminated gracefully. Do others see this same behavior? If so, is there a fix or configuration change that c...