Package: certbot Version: 0.10.2-1 Severity: normal Dear Maintainer,
Certbot in Debian stretch is at version 0.10; due to upstream changes, it is no longer fit for purpose *** Reporter, please consider answering these questions, where appropriate *** * What led up to the situation? Attempted to verify certbot installation after moving cdrtificates to a new server. * What exactly did you do (or not do) that was effective (or ineffective)? Ran # certbot renew --dry-run * What was the outcome of this action? Received the error message Client with the currently selected authenticator does not support any combination of challenges that will satisfy the CA. * What outcome did you expect instead? Successful verification that certificate would have been renewed. -- System Information: Debian Release: 9.3 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 4.9.0-5-amd64 (SMP w/2 CPU cores) Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8), LANGUAGE=en_AU:en (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages certbot depends on: ii init-system-helpers 1.48 ii python 2.7.13-2 ii python-certbot 0.10.2-1 certbot recommends no packages. Versions of packages certbot suggests: ii python-certbot-apache 0.10.2-1 pn python-certbot-doc <none> -- no debconf information A quick googling suggest that the issue is LetsEncrypt has dropped support for TLS-SNI-01, as described in (e.g.) https://community.letsencrypt.org/t/solution-client-with-the-currently-selected-authenticator-does-not-support-any-combination-of-challenges-that-will-satisfy-the-ca/49983 The recommendation is to upgrade to certbot 0.20. I note this version is currently in sid; can it please be passed dpown to stretch, or stretch-backports? THank you, John Pearson