Software: userv

Ian Jackson's userv

userv is a security boundary management daemon. It manages very carefully who is allowed to do what to what else. It differs from such things as sudo in that it is rather like a network service - the client asks the server to execute a request for it, and ties some or all of the file handles to the client. It is also possible to make sure that a malicious environment at the client end can't do anything nasty at the server end, as the service will inherit its environment from the daemon.

As RPMs (RedHat Package Manager)
		userv-1.0.1-1.i386.rpm
		userv-1.0.1-1.src.rpm
As a FreeBSD (4.3-STABLE) port
		userv.tar