Συντάκτης: Aldemir Akpinar Ημερομηνία: Προς: John Hughes Υ/ο: dng@lists.dyne.org Αντικείμενο: Re: [DNG] ..forensics on systemd or journald logs,
was: rc.local removed from Debian 9, rly?
On 22 November 2017 at 17:03, John Hughes <john@???> wrote:
> On 22/11/17 14:18, Aldemir Akpinar wrote:
>
>
> That's routine. Few readers read everything that can be read. For example,
>> look at postgres. Its binary file format reveals quite a bit more than you
>> can get using psql, and by design: The writer and binary format are
>> intended for storing things quickly and reliably, and the reader for
>> reading what was stored. Anything that's in the file but wasn't stored by
>> instruction of an SQL user is uninteresting to psql, and the file format
>> writer has no particular reason to avoid storing other information.
>>
>>
>>
>>
> Could you elaborate why are you comparing a relational database system
> where its files must be binary with a logging system where its files
> doesn't need to binary?
>
>
> Need? Nothing "needs" to be in binary[*]. It's a design decision. Do
> the advantages of a structured format (mostly speed) override the
> disadvantages (higher costs for access if the reader software is
> unavailable?
>
> [*] or, to put it another way -- *everything on a computer is in binary*.
> "Text" files are binary. The question is how easy is it to decode the file
> format. It seems obvious that a "text" file is easy to decode, everyone
> knows the format (but what character set is it in?), but don't forget that
> the "text" file is stored on a filesystem, which is itself a complicated
> "binary" structure. When you're talking about "forensics", i.e. looking at
> something that may be broken in exciting ways, it's quite naïve to assume
> that you can just mount the filesystem (which one?) and use cat, vi, grep
> or whatever.
>
>
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Re: [DNG] ..forensics on systemd or…
