Date: Sun, 17 May 2020 18:55:30 -0700 (PDT) From: "Rodney W. Grimes" <freebsd@gndrsh.dnsmgr.net> To: Ed Maste <emaste@freebsd.org> Cc: Conrad Meyer <cem@freebsd.org>, Oliver Pinter <oliver.pntr@gmail.com>, "src-committers@freebsd.org" <src-committers@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org> Subject: Re: svn commit: r361143 - head/release/tools Message-ID: <202005180155.04I1tUtV098551@gndrsh.dnsmgr.net> In-Reply-To: <CAPyFy2D_CbZaM_XpQPUh=-gsxyNjS13vVDFPdNF9UcgPdQhDgA@mail.gmail.com>
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> On Sun, 17 May 2020 at 20:24, Conrad Meyer <cem@freebsd.org> wrote: > > > > On Sun, May 17, 2020 at 4:49 PM Oliver Pinter <oliver.pntr@gmail.com> wrote: > > > On Sunday, May 17, 2020, Colin Percival <cperciva@freebsd.org> 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
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