Re: /etc/hosts and resolving of the local host/domainname - 127.0.0.1 vs. 127.0.1.1

To: debian-devel@lists.debian.org
Subject: Re: /etc/hosts and resolving of the local host/domainname - 127.0.0.1 vs. 127.0.1.1
From: Simon McVittie <smcv@debian.org>
Date: Tue, 30 Jul 2013 23:18:00 +0100
Message-id: <[🔎] 51F83B98.8050900@debian.org>
In-reply-to: <[🔎] 1375221286.5442.119.camel@fermat.scientia.net>
References: <[🔎] 1375217024.5442.102.camel@fermat.scientia.net> <[🔎] 87y58n4vge.fsf@windlord.stanford.edu> <[🔎] CAOLfK3VAZ9X-xz4MruhMB_q6SJBnDzgx7KEdKowNhvkLhMQBjA@mail.gmail.com> <[🔎] 87fvuv4u63.fsf@windlord.stanford.edu> <[🔎] 1375221286.5442.119.camel@fermat.scientia.net>

On 30/07/13 22:54, Christoph Anton Mitterer wrote:
> Consider an application which only accept packets originating from
> <hostname> as a security measure..

If you only want to accept packets from yourself, use 127.0.0.1 (or ::1,
or a Unix socket). Anything else has more possible failure modes.

    S

Reply to:

References:
- /etc/hosts and resolving of the local host/domainname - 127.0.0.1 vs. 127.0.1.1
  - From: Christoph Anton Mitterer <calestyo@scientia.net>
- Re: /etc/hosts and resolving of the local host/domainname - 127.0.0.1 vs. 127.0.1.1
  - From: Russ Allbery <rra@debian.org>
- Re: /etc/hosts and resolving of the local host/domainname - 127.0.0.1 vs. 127.0.1.1
  - From: Matt Zagrabelny <mzagrabe@d.umn.edu>
- Re: /etc/hosts and resolving of the local host/domainname - 127.0.0.1 vs. 127.0.1.1
  - From: Russ Allbery <rra@debian.org>
- Re: /etc/hosts and resolving of the local host/domainname - 127.0.0.1 vs. 127.0.1.1
  - From: Christoph Anton Mitterer <calestyo@scientia.net>

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