From owner-svn-src-all@freebsd.org Mon May 18 01:55:39 2020 Return-Path: Delivered-To: svn-src-all@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 88F092FC092; Mon, 18 May 2020 01:55:39 +0000 (UTC) (envelope-from freebsd@gndrsh.dnsmgr.net) Received: from gndrsh.dnsmgr.net (br1.CN84in.dnsmgr.net [69.59.192.140]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 49QMY70wQnz42qY; Mon, 18 May 2020 01:55:38 +0000 (UTC) (envelope-from freebsd@gndrsh.dnsmgr.net) Received: from gndrsh.dnsmgr.net (localhost [127.0.0.1]) by gndrsh.dnsmgr.net (8.13.3/8.13.3) with ESMTP id 04I1tUrI098552; Sun, 17 May 2020 18:55:30 -0700 (PDT) (envelope-from freebsd@gndrsh.dnsmgr.net) Received: (from freebsd@localhost) by gndrsh.dnsmgr.net (8.13.3/8.13.3/Submit) id 04I1tUtV098551; Sun, 17 May 2020 18:55:30 -0700 (PDT) (envelope-from freebsd) From: "Rodney W. Grimes" Message-Id: <202005180155.04I1tUtV098551@gndrsh.dnsmgr.net> Subject: Re: svn commit: r361143 - head/release/tools In-Reply-To: To: Ed Maste Date: Sun, 17 May 2020 18:55:30 -0700 (PDT) CC: Conrad Meyer , Oliver Pinter , "src-committers@freebsd.org" , "svn-src-all@freebsd.org" , "svn-src-head@freebsd.org" Reply-To: rgrimes@freebsd.org X-Mailer: ELM [version 2.4ME+ PL121h (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII X-Rspamd-Queue-Id: 49QMY70wQnz42qY X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; TAGGED_RCPT(0.00)[]; REPLY(-4.00)[]; ASN(0.00)[asn:13868, ipnet:69.59.192.0/19, country:US] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 May 2020 01:55:39 -0000 > On Sun, 17 May 2020 at 20:24, Conrad Meyer wrote: > > > > On Sun, May 17, 2020 at 4:49 PM Oliver Pinter wrote: > > > On Sunday, May 17, 2020, Colin Percival wrote: > > >> +# Provide instructions on how to mount the requested filesystem. > > >> +FS=$1 > > >> +REGION=`fetch -qo- http://169.254.169.254/latest/meta-data/placement/availability-zone | sed -e 's/[a-z]$//'` > > > > > > > > > What will be this hard-coded ip address without any verification or at least https? > > > > It's a special non-routable IP that is used in at least AWS and Azure > > to provide some VM services. Traffic to and from it never leaves the > > virtual overlay network, which by design VM instances already trust to > > provide privacy. It doesn't require functioning DNS to access the raw > > IP. > > And, more information at > https://en.wikipedia.org/wiki/Link-local_address And the definative document(s) https://www.rfc-editor.org/rfc/rfc3927.txt https://who.is/whois-ip/ip-address/169.254.0.0 -- Rod Grimes rgrimes@freebsd.org