Date: Fri, 13 Mar 2009 20:59:13 -0400 From: Steve Bertrand <steve@ibctech.ca> To: "freebsd-questions@freebsd.org Questions -" <freebsd-questions@freebsd.org> Subject: Execute and lock a user into a program upon login Message-ID: <49BB0161.3070800@ibctech.ca>
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Hi everyone, Although the application of my question focuses on network operation, I believe that the objective fits this list. Mostly irrelevant, I have been working on securing my network perimeter. I have a FreeBSD box that acts as a host-based BGP peer to all edge connected routers. I use this host-based Quagga FBSD router to distribute routes that are to be blackholed by the edge devices. What I want is to set up an environment so that when a specific user logs in to the box via SSH, a command is run, and they immediately get dropped into the environment that the command produces. When they exit this 'command', the login session is dropped. Essentially, I want to 'lock' a user into a program upon SSH login, and drop them from the SSH session when the program terminates. In essence: - user 'router' connects via SSH - user is dropped into the application 'vtysh' - user performs operations - user exits from program - shell drops (ie. user does not have to exit the csh shell to drop the SSH connection) Steve
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