LISA '03 Abstract
Pp. 173-180 of the Proceedings
CDSS: Secure Distribution of Software Installation Media Images in a Heterogeneous Environment
Ted Cabeen, Impulse Internet Services; Job Bogan, Consultant
CDSS is a framework for the distribution of software installation
media images and their contents over multiple file sharing protocols.
The CDSS system provides a unique isolated server instance for every
accessing user, even when another instance of that server is already
running. CDSS uses the Linux host-based firewall system to
transparently redirect inbound connections from each user to his
specific server instance. By doing so, multiple users can access the
CDSS server over the same protocol on the standard port without
requiring any special configuration by the user. Each user can only
communicate with the server instance that was started explicitly for
him and that has been automatically configured by CDSS to allow access
only to the files that he has requested.
CDSS is currently implemented as a collection of web and shell
scripts that run on Linux servers that support the IPTables and
IPChains firewalling systems. CDSS currently supports image
distribution via the following protocols: HTTP, FTP, TFTP, NFS, SMB,
and AppleShare IP. CDSS can share any filesystem image file stored on
the server as well as the individual contents of those images that the
server can loopback-mount.
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