Re: [EXIM] 1 incoming/1 outgoing considered more safe ?

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Lähettäjä: Philip Hazel
Päiväys:  
Vastaanottaja: Anand Buddhdev
Kopio: Adrian Phillips, exim-users
Aihe: Re: [EXIM] 1 incoming/1 outgoing considered more safe ?
On Thu, 11 Feb 1999, Anand Buddhdev wrote:

> Other mail systems take another approach, and partition the system into
> little modules, each of which runs as a differnet user. an example is
> qmail. Here, the smtp daemon runs as user qmaild, the sending daemon runs
> as qmails and the delivery agent runs with the privileges of the user being
> delivered to.


It is also the case in Exim that local deliveries run in processes that
have the privileges of the user being delivered to (achieved with
setuid, *not* seteuid). The daemon and remote deliveries both run as
exim (also setuid), assuming you have defined an exim uid.

-- 
Philip Hazel            University of Cambridge Computing Service,
ph10@???      Cambridge, England. Phone: +44 1223 334714.



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