[CentOS] Re: Planning Mail Server (with low resources)

Bryan J. Smith wrote:
> Rodrigo Barbosa <rodrigob at suespammers.org> wrote:
> 
>>Having /etc readonly is kind of tricky.
>>Are you sure that is a good idea ?
> 
> 
> That was my exact thought as well.  You can separate out
> everything except /etc, which really needs to be on /.
> 
> Ideally any programs/services should not be automatically
> writing to /etc (but /var or /srv instead), but that's hardly
> the reality.
> 
> 

It is not impossible. Debian is very near to being able to do this and 
it is possible on Gentoo with some simple modifications.