Does anybody else have additional feedback on this reply from, Greg? We are regarding a secure backup scheme for amanda whereby the backups are passed to a gzip wrapper that encrypts the data with gpg and then forwards it to the real gzip for further compression. I'd wondered about the utility of sending an encrypted stream to gzip, but kept that part in because of general laziness and admitted ignorance. It shouldn't hurt anything except speed, but, since speed is now perhaps an issue, I might take the final gzip step out unless somebody can tell me why I'd want to keep it. The documentation in question resides at http://security.uchicago.edu/tools/gpg-amanda
Thanks, Jenn Greg Troxel wrote: > Looking at the docs, it seems that this is > gzip | gpg | gzip > > This seems odd. The output of gpg will be quite incompressible. > I think gpg by default will do compression of some kind, perhaps > gzip-like. > So you might try omitting the gzips, or the second one and config > compression off in gpg. I suspect things will speed up a lot and not > be any bigger. IIRC gzip on hard-to-compress data is pretty slow. > > I'd appreciate hearing back on the output of my suggestion; this is > something I've been wanting to do for a while but never gotten around > to. > > Greg Troxel <[EMAIL PROTECTED]> >
