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sshproxy(8) Manual Page

NAME

sshproxy - proxy SSH connections on a gateway

SYNOPSIS

sshproxy [OPTIONS] [config]

DESCRIPTION

sshproxy is used on a gateway to proxy SSH connections.

If the SSH server sets the SSH_USER_AUTH environment variable (see ExposeAuthInfo in openssh’s sshd_config), sshproxy uses it to get the force-command directive of the client’s signed ssh public key. If a force-command is found, it is used as an argument to the ssh command forked by sshproxy. Otherwise, the SSH_ORIGINAL_COMMAND environment variable is used as the argument to the ssh command.

OPTIONS

-version

Show version number and exit.

INSTALLATION

  • Configure /etc/sshproxy/sshproxy.yaml to suit your needs.

  • Modify the OpenSSH daemon configuration /etc/ssh/sshd_config by adding:

    ForceCommand /sbin/sshproxy

etcd can be used to make sshproxy stateful. If it is the case, sshproxyctl(8) can display and modify states stored in etcd.

FILES

/etc/sshproxy/sshproxy.yaml

Contains configuration (see sshproxy.yaml(5) for details).

SEE ALSO

sshproxy.yaml(5), sshproxyctl(8), sshproxy-replay(8), sshd_config(5)

AUTHORS

sshproxy was written by Arnaud Guignard <arnaud.guignard@cea.fr> and Cyril Servant <cyril.servant@cea.fr>.

COPYING

Copyright © 2015-2025 CEA/DAM/DIF. Free use of this software is granted under the term of the CeCILL-B license.