similar to: Logging with ForceCommand and SCP

On Sat, 11 Nov 2023, Bob Proulx wrote: > I am supporting a site that allows members to upload release files. I > have inherited this site which was previously existing. The goal is > to allow members to file transfer to and from their project area for > release distribution but not to allow general shell access and not to > allow access to other parts of the system. > >

Hi, We're developing an open source project that uses SSH certificates. We issue short lived certificates (few minutes) to execute commands on behalf of users. We have a use case where we need to issue certificates with 10 days validity and store them, so we put a command inside them: ssh-keygen -s ca-key -I certN -n user -O force-command="wget something" -V +10d user-key.pub and

Gert, Thank you for the feedback. Can you give any further direction on where to get more information on what you are describing? On Wed, Feb 17, 2016 at 3:17 PM, Gert Doering <gert at greenie.muc.de> wrote: > Hi, > > On Wed, Feb 17, 2016 at 12:59:57PM -0600, Lesley Kimmel wrote: > > I would like to implement an arbitrary script to be executed when logging > > on via

On 12.11.23 03:52, Damien Miller wrote: > On Sat, 11 Nov 2023, Bob Proulx wrote: > >> I am supporting a site that allows members to upload release files. I >> have inherited this site which was previously existing. The goal is >> to allow members to file transfer to and from their project area for >> release distribution but not to allow general shell access and not

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

Hi guys, I have a server setup with openssh-5.0p1 and use some 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

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

This is a new branch of an old thread, made necessary because the email system here purges sent messages after a period of time so I can't reply to the last message in the thread. The operative portion of that last message (retrieved from the archives and dated July 3, 2023) follows: /*****/ So I set up a fresh key to use for this test, and gave it similar parameters. I wasn't aware of

I am supporting a site that allows members to upload release files. I have inherited this site which was previously existing. The goal is to allow members to file transfer to and from their project area for release distribution but not to allow general shell access and not to allow access to other parts of the system. Currently rsync and old scp has been restricted using a restricted shell

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 AssignedTo:

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

> > 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

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

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

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

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 the ~/.ssh/rc file in such a case? Thaks, Mike

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_command) { original_command = command;

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 = love'? <<? '' -o--=O`C

I am thinking of configuring a service where multiple users have their own private keys to do rsync over ssh. I don't want each of these users to have their own UID. I want them each to share a UID, but to have space on the ssh server isolated from any other user. Let us assume that I also wish to prevent them from using any service other than rsync. Is this possible? Is a sensible approach

Hi all, If you specify this perl script as a ForceCommand, users will not be able to run commands (or scp) remotely, only login. Probably no-one will have a use for this but I thought I'd share because it shows how to run a shell as a login shell from a ForceCommand. Wout. #!/usr/bin/perl use strict; # Give the user a shell if that was their intention if (exists $ENV{SSH_TTY} &&