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From "Bremser, Kurt (Allianz Technology GmbH)" <Kurt.Brem...@allianz.at>
Subject AW: [users@httpd] Run apache without master [wd-vc]
Date Wed, 13 Sep 2017 12:23:02 GMT
Spawning children servers one very important purpose: while the master has to be run as root
to bind to the privileged port 80, the child is spawned as the user named in the configuration,
reducing security issues by orders of magnitude.
Changing that and running the whole server process (inlcuding spawned cgi scripts etc) as
root would be extremely stupid, IMO.

Kurt Bremser
Allianz Technology GmbH

Newton was wrong. There is no gravity. The Earth sucks.
________________________________________
Von: Hemant Chaudhary [hemantdude.chaudhary@gmail.com]
Gesendet: Mittwoch, 13. September 2017 14:03
An: users@httpd.apache.org
Betreff: Re: [users@httpd] Run apache without master [wd-vc]

Yes true. I want to start only one process and it should not spawn child processes.
In apache, we have master process and then it spawns child. After that child serves requests
by client.
My aim is to start master process and it should not spawn child as well as it should serve
requests from client.

Thanks
Hemant

On Wed, Sep 13, 2017 at 5:18 PM, Bremser, Kurt (Allianz Technology GmbH) <Kurt.Bremser@allianz.at<mailto:Kurt.Bremser@allianz.at>>
wrote:
In most cases, you can only have ONE process binding to ONE IP-address/port combination. Children
of this process will then inherit the socket, which is the way how apache works.

On Linux and BSD, there is the SO_REUSEPORT option that can be set by a listening process,
so that other processes can also bind to the socket, and let the OS handle which incoming
data ends up where.
If you think about that, it opens the port up for hijacking, as the initial listener process
has no idea which other processes might also bind to the port and intercept traffic.

So the apache method of one master process binding to the port and spawning children is the
prudent one.

Kurt Bremser
Allianz Technology GmbH

Newton was wrong. There is no gravity. The Earth sucks.
________________________________________
Von: Hemant Chaudhary [hemantdude.chaudhary@gmail.com<mailto:hemantdude.chaudhary@gmail.com>]
Gesendet: Mittwoch, 13. September 2017 13:29
An: users@httpd.apache.org<mailto:users@httpd.apache.org>
Betreff: Re: [users@httpd] Run apache without master [wd-vc]

Hi

I want to create different processes not forking from parent or anywhere.
It is still okay if parent process is started and parent process will not fork child processes
but parent should serve requests.

On Sep 13, 2017 4:47 PM, "Eric Covener" <covener@gmail.com<mailto:covener@gmail.com><mailto:covener@gmail.com<mailto:covener@gmail.com>>>
wrote:
On Wed, Sep 13, 2017 at 7:09 AM, Hemant Chaudhary
<hemantdude.chaudhary@gmail.com<mailto:hemantdude.chaudhary@gmail.com><mailto:hemantdude.chaudhary@gmail.com<mailto:hemantdude.chaudhary@gmail.com>>>
wrote:
> Hi,
>
> I want to start my apache without master process means when I will give
> "httpd" command, it should start 5 worker process which has access to
> httpd.conf as well as serve requests.
>
> Is it possible to achieve this ? If yes, then how should to achieve this ?

Not really. Why not just ignore the parent process? The worst thing
that can happen is that it doesn't manage the children, which you're
already losing in this hypothetical setup.

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Allianz Technology GmbH
1130 Wien, Hietzinger Kai 101-105
FN 365014k, Handelsgericht Wien
UID: ATU 66614737

http://www.allianz.at

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Allianz Technology GmbH 
1130 Wien, Hietzinger Kai 101-105 
FN 365014k, Handelsgericht Wien 
UID: ATU 66614737 

http://www.allianz.at 

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