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aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=lease-up.com header.s=2017 header.b=T72WecSV; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "help-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="help-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: 2.01 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=lease-up.com header.s=2017 header.b=T72WecSV; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "help-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="help-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: D905836A8D X-Spam-Score: 2.01 X-Migadu-Scanner: scn0.migadu.com X-TUID: g9NzYsU16eXj Hi, On Fri, Oct 14, 2022 at 1:02 PM dabbede@gmail.com wrote: > > I'm puzzled, as I don't understand exactly what went wrong... How about the output from the client with ssh -vvv Also, it may be helpful to post the contents of your sshd_config. > Connection from 127.0.0.1 port 33818 on 127.0.0.1 port 2222 rdomain "" Do you have reverse DNS configured? For example, please see here https://serverfault.com/questions/206365/ssh-reverse-dns-lookup Kind regards Felix Lechner