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Date: Fri, 8 Mar 2013 11:30:42 +0700
Message-ID: <CAA2qdGVHxS1NgtCgpbDhNoTfWPK-szgRJCN_yae5e_EenTYNxA@mail.gmail.com>
Subject: Re: [gentoo-user] /etc/hosts include file?
From: Pandu Poluan <pandu@poluan.info>
To: gentoo-user@lists.gentoo.org
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On Mar 8, 2013 5:27 AM, "Alan McKinnon" <alan.mckinnon@gmail.com> wrote:
>
> Anyone know if there's a way to get /etc/hosts to support the notion of
> an include file? I did my homework and found nothing, maybe someone else
> knows more.
>
> I really do need this, I have an app that discovers things on the
> network and knows their address. This makes it's automated way into DNS
> but takes a few days, and another app needs to use the fqdn right now.
> So /etc/hosts is the way to go for the interim three days.
>
> I've worked around it by creating /etc/hosts.d/ containing a header and
> a data file. cat the two and redirect to /etc/hosts.d/hosts and the real
> hosts file is a symlink to that. It's a sub-directory as none of these
> apps run as root and only root can modiy the real hosts file.
>
> This works well enough, but a supported include mechanism would make
> life so much simpler, not to mention easier for my colleagues to
> understand what the blazes I set up :-)
>
>
>
> --
> Alan McKinnon
> alan.mckinnon@gmail.com
>
>
>
An option would be to create a cron job which generates the hosts file
every minute. The cron job should also insert a header on top of the hosts
file telling:
+ this file (hosts) is dynamically generated
+ by a system cron job
+ the cron job's script location
Besides, you said you're going to need this workaround only for a couple of
days, so installing Samba4 might be an overkill.
Rgds,
--
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<p><br>
On Mar 8, 2013 5:27 AM, "Alan McKinnon" <<a href=3D"mailto:ala=
n.mckinnon@gmail.com">alan.mckinnon@gmail.com</a>> wrote:<br>
><br>
> Anyone know if there's a way to get /etc/hosts to support the noti=
on of<br>
> an include file? I did my homework and found nothing, maybe someone el=
se<br>
> knows more.<br>
><br>
> I really do need this, I have an app that discovers things on the<br>
> network and knows their address. This makes it's automated way int=
o DNS<br>
> but takes a few days, and another app needs to use the fqdn right now.=
<br>
> So /etc/hosts is the way to go for the interim three days.<br>
><br>
> I've worked around it by creating /etc/hosts.d/ containing a heade=
r and<br>
> a data file. cat the two and redirect to /etc/hosts.d/hosts and the re=
al<br>
> hosts file is a symlink to that. It's a sub-directory as none of t=
hese<br>
> apps run as root and only root can modiy the real hosts file.<br>
><br>
> This works well enough, but a supported include mechanism would make<b=
r>
> life so much simpler, not to mention easier for my colleagues to<br>
> understand what the blazes I set up :-)<br>
><br>
><br>
><br>
> --<br>
> Alan McKinnon<br>
> <a href=3D"mailto:alan.mckinnon@gmail.com">alan.mckinnon@gmail.com</a>=
<br>
><br>
><br>
></p>
<p>An option would be to create a cron job which generates the hosts file e=
very minute. The cron job should also insert a header on top of the hosts f=
ile telling:</p>
<p>+ this file (hosts) is dynamically generated<br>
+ by a system cron job<br>
+ the cron job's script location</p>
<p>Besides, you said you're going to need this workaround only for a co=
uple of days, so installing Samba4 might be an overkill.<br>
=C2=A0=C2=A0 </p>
<p>Rgds,<br>
--<br>
</p>
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