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envelope-from=me@tobias.gr; helo=tobias.gr X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-guix@gnu.org List-Id: Bug reports for GNU Guix List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guix-bounces+larch=yhetil.org@gnu.org Sender: "bug-Guix" Reply-to: Tobias Geerinckx-Rice From: Tobias Geerinckx-Rice via Bug reports for GNU Guix X-Migadu-Flow: FLOW_IN X-Migadu-Spam-Score: -3.96 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=tobias.gr header.s=2018 header.b=II33pg2X; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of bug-guix-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=bug-guix-bounces@gnu.org X-Migadu-Queue-Id: 7FF472419E X-Spam-Score: -3.96 X-Migadu-Scanner: scn0.migadu.com X-TUID: o6/NGowbT5rh --=-=-= Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable L=C3=A9o Le Bouter via Bug reports for GNU Guix =E5=86=99=E9=81=93=EF=BC=9A > Should we explicitly check if we are over an IPv6 connection=20 > instead? > Is that possible? My FTP knowledge is about two decades out of date: does an IPv6=20 server (de facto) have to support EPSV? The =E2=80=98right=E2=80=99 way would be to send the FEAT command, and chec= k=20 whether the server actually supports EPSV. A bit more=20 heavy-weight than your heuristic. Kind regards, T G-R --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iIMEARYKACsWIQT12iAyS4c9C3o4dnINsP+IT1VteQUCYCztFQ0cbWVAdG9iaWFz LmdyAAoJEA2w/4hPVW15bZAA/icyBSt05AaEYLPh6bF37BshKLfmAjOBsadKW6VZ 9FfmAQDBpEgI17oP9ADaGx6XVAwCPnBb1AjSgfpuVgdUWx09DQ== =SDSr -----END PGP SIGNATURE----- --=-=-=--