Re: [OT] Dns servers

[Devdas Bhagat <devdas@xxxxxxxxxxxxxxxxx>]

On 01/01/05 10:56 -0800, Planet X Mail wrote:
> --- Wietse Venema <wietse@xxxxxxxxxxxxx> wrote:
> > 
> > >  Tony Earnshaw:
> > > Oh, and the alternative to "the bloat of Sendmail" seems to be Postfix, on
> > > most +n+x systems now days.
> > 
> > Caution: Postfix without TLS and IPv6 is already several times
> > bigger than Sendmail was at the time Postfix was released (this is
> > source line count without comments). Postfix has tripled in size
> > since the initial public release.
> > 
> > The "bloat of Postfix" is mostly in
> > 
> > - extension mechanisms such as lookup tables, policy delegation
> > and content filtering,
> > 
> > - optional services such as session caching, address verification
> > database, and anvil rate control.
> > 
> > You can turn most of that stuff off (or even remove executables)
> > and never have to worry about it.
> > 
> > 	Wietse
> > 
> In a default postfix install ( v 2 ) does this 'bloating' use up alot of sys
> resources?  Or does the default config/install pretty much make postfix
> efficient on memory and cpu?
> 
> Bloat was a prob with sendmail are we seeing postfix going down a path of
> inefficencly?

Inefficiency, no. Features keep getting added to Postfix, and features
necessitate code. A lot of services can be disabled, and the
architecture of Postfix means that most processes are relatively short
lived, which the long lived ones don't consume much more memory.

A lot of that code is in #ifdef blocks, which means it doesn't get
enabled unless you ask for it at compile time.

As Wietse says above, you can even remove parts of Postfix and it will
work.

Devdas Bhagat