Re: gzip: unrecognized option `--rsyncable'

[Shachar S. <sh...@sh...>]

On 26/09/15 15:32, Vladimir Botka wrote:
> Hello,
>
> I run command [1] in FreeBSD and see gzip error [2]. Would it be
> possible to help me? Thank you.
In the past, --rsyncable wasn't part of vanilla gzip. It is possible
that FreeBSD doesn't include it. I have no idea if it made it into
vanilla gzip or not. Almost all Linux distributions include it.

Using rsyncrypto without it is rather pointless. There is no point in
giving up security in order to get rsync friendly cypher texts if the
compression then goes ahead and makes them non-rsyncable. I also
wouldn't recommend using rsyncrypto without compression, as it has some
security assumptions that revolve around high entropy input. Using
uncompressed files with rsyncrypto is below the security threshold I
would recommend.

The only solution I can offer is to compile your own version of gzip,
with the rsyncable flag.

Shachar