确实，IPv6 问题和 Let’s Encrypt 的故障描述得比较模糊。
在重建 Discourse 时，一切正常，新证书成功签发。
但自动续期 Let’s Encrypt 证书时失败了，因为站点在运行时无法通过 IPv6 访问，导致 Let’s Encrypt 无法验证 .well-known 目录，从而超时。
我们还检查了 Docker 主机配置，发现 IPv6 的 iptables（ip6tables）没有像 IPv4 那样设置转发规则到 Docker 内部网络，尽管 ip6tables 中所有规则都已允许…
我们还在 Docker 主机设置中启用了 IPv6 并重启了守护进程，但问题依旧。
谢谢，George。第一个问题，你能确认你遵循了 discourse/docs/INSTALL-cloud.md at main · discourse/discourse · GitHub 吗？
我刚刚检查了我们其中一个启用了 IPv6 的 Digital Ocean“自托管”测试站点，可以确认 SSL 证书已成功续期，未出现问题。
是的，我们正是这样操作的：先手动安装 Docker，然后再运行 discourse-setup。
那是很久以前的事了（2.5 年前），起初一切正常。但一年后，当我们为 IPv6 添加了 AAAA 记录后，自动续期就停止工作了，每次都必须运行 discourse rebuild 才能获取新的 SSL 证书。
您是否有自动续期失败时的日志？它们会非常有帮助。
另外，您是否对官方指南进行了任何修改？例如使用了额外的反向代理？手动修改了 app.yml？主机系统的防火墙配置？等等。
我并非质疑您，但鉴于我们知道有数千个自托管部署实例在运行，其中许多使用了 IPv6，如果 SSL 证书续期在 IPv6 站点上失败，我们应该会听到大量反馈。
We followed the official guide very strictly - no additions at all - no proxies what so ever. Just a bare bone VPS with Ubuntu on it and docker.
The VPS had ipv6 enabled but as I said we added the AAAA record to the DNS much later.
We didn’t enter any other specific ipv6 config on the server.
Here is the detailed logging of the failed SSL renewal:
[Tue Jun 30 00:51:02 UTC 2020] Running cmd: cron
[Tue Jun 30 00:51:02 UTC 2020] Using config home:/shared/letsencrypt
[Tue Jun 30 00:51:02 UTC 2020] ACME_DIRECTORY='https://acme-v02.api.letsencrypt.org/directory'
[Tue Jun 30 00:51:02 UTC 2020] ===Starting cron===
[Tue Jun 30 00:51:02 UTC 2020] Using config home:/shared/letsencrypt
[Tue Jun 30 00:51:02 UTC 2020] ACME_DIRECTORY='https://acme-v02.api.letsencrypt.org/directory'
[Tue Jun 30 00:51:02 UTC 2020] GET
[Tue Jun 30 00:51:02 UTC 2020] url='https://api.github.com/repos/acmesh-official/acme.sh/git/refs/heads/master'
[Tue Jun 30 00:51:02 UTC 2020] timeout=
[Tue Jun 30 00:51:02 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:02 UTC 2020] ret='0'
[Tue Jun 30 00:51:02 UTC 2020] Already uptodate!
[Tue Jun 30 00:51:02 UTC 2020] Upgrade success!
[Tue Jun 30 00:51:02 UTC 2020] Using config home:/shared/letsencrypt
[Tue Jun 30 00:51:02 UTC 2020] ACME_DIRECTORY='https://acme-v02.api.letsencrypt.org/directory'
[Tue Jun 30 00:51:02 UTC 2020] Auto upgraded to: 2.8.7
[Tue Jun 30 00:51:02 UTC 2020] Using config home:/shared/letsencrypt
[Tue Jun 30 00:51:02 UTC 2020] ACME_DIRECTORY='https://acme-v02.api.letsencrypt.org/directory'
[Tue Jun 30 00:51:02 UTC 2020] _stopRenewOnError
[Tue Jun 30 00:51:02 UTC 2020] _set_level='2'
[Tue Jun 30 00:51:02 UTC 2020] di='/shared/letsencrypt/community.wappler.io/'
[Tue Jun 30 00:51:02 UTC 2020] d='community.wappler.io'
[Tue Jun 30 00:51:02 UTC 2020] Using config home:/shared/letsencrypt
[Tue Jun 30 00:51:02 UTC 2020] ACME_DIRECTORY='https://acme-v02.api.letsencrypt.org/directory'
[Tue Jun 30 00:51:02 UTC 2020] DOMAIN_PATH='/shared/letsencrypt/community.wappler.io'
[Tue Jun 30 00:51:02 UTC 2020] Renew: 'community.wappler.io'
[Tue Jun 30 00:51:02 UTC 2020] Le_API
[Tue Jun 30 00:51:02 UTC 2020] _main_domain='community.wappler.io'
[Tue Jun 30 00:51:02 UTC 2020] _alt_domains='no'
[Tue Jun 30 00:51:02 UTC 2020] Using ACME_DIRECTORY: https://acme-v02.api.letsencrypt.org/directory
[Tue Jun 30 00:51:02 UTC 2020] _init api for server: https://acme-v02.api.letsencrypt.org/directory
[Tue Jun 30 00:51:02 UTC 2020] GET
[Tue Jun 30 00:51:02 UTC 2020] url='https://acme-v02.api.letsencrypt.org/directory'
[Tue Jun 30 00:51:02 UTC 2020] timeout=
[Tue Jun 30 00:51:02 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:03 UTC 2020] ret='0'
[Tue Jun 30 00:51:03 UTC 2020] ACME_KEY_CHANGE='https://acme-v02.api.letsencrypt.org/acme/key-change'
[Tue Jun 30 00:51:03 UTC 2020] ACME_NEW_AUTHZ
[Tue Jun 30 00:51:03 UTC 2020] ACME_NEW_ORDER='https://acme-v02.api.letsencrypt.org/acme/new-order'
[Tue Jun 30 00:51:03 UTC 2020] ACME_NEW_ACCOUNT='https://acme-v02.api.letsencrypt.org/acme/new-acct'
[Tue Jun 30 00:51:03 UTC 2020] ACME_REVOKE_CERT='https://acme-v02.api.letsencrypt.org/acme/revoke-cert'
[Tue Jun 30 00:51:03 UTC 2020] ACME_AGREEMENT='https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf'
[Tue Jun 30 00:51:03 UTC 2020] ACME_NEW_NONCE='https://acme-v02.api.letsencrypt.org/acme/new-nonce'
[Tue Jun 30 00:51:03 UTC 2020] ACME_VERSION='2'
[Tue Jun 30 00:51:03 UTC 2020] Le_NextRenewTime='1591011136'
[Tue Jun 30 00:51:03 UTC 2020] _on_before_issue
[Tue Jun 30 00:51:03 UTC 2020] _chk_main_domain='community.wappler.io'
[Tue Jun 30 00:51:03 UTC 2020] _chk_alt_domains
[Tue Jun 30 00:51:03 UTC 2020] Le_LocalAddress
[Tue Jun 30 00:51:03 UTC 2020] d='community.wappler.io'
[Tue Jun 30 00:51:03 UTC 2020] Check for domain='community.wappler.io'
[Tue Jun 30 00:51:03 UTC 2020] _currentRoot='/var/www/discourse/public'
[Tue Jun 30 00:51:03 UTC 2020] d
[Tue Jun 30 00:51:03 UTC 2020] _saved_account_key_hash is not changed, skip register account.
[Tue Jun 30 00:51:03 UTC 2020] Read key length:4096
[Tue Jun 30 00:51:03 UTC 2020] _createcsr
[Tue Jun 30 00:51:03 UTC 2020] Single domain='community.wappler.io'
[Tue Jun 30 00:51:03 UTC 2020] Getting domain auth token for each domain
[Tue Jun 30 00:51:03 UTC 2020] d
[Tue Jun 30 00:51:03 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/new-order'
[Tue Jun 30 00:51:03 UTC 2020] payload='{"identifiers": [{"type":"dns","value":"community.wappler.io"}]}'
[Tue Jun 30 00:51:03 UTC 2020] RSA key
[Tue Jun 30 00:51:03 UTC 2020] HEAD
[Tue Jun 30 00:51:03 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/new-nonce'
[Tue Jun 30 00:51:03 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g -I '
[Tue Jun 30 00:51:04 UTC 2020] _ret='0'
[Tue Jun 30 00:51:04 UTC 2020] POST
[Tue Jun 30 00:51:04 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/new-order'
[Tue Jun 30 00:51:04 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:04 UTC 2020] _ret='0'
[Tue Jun 30 00:51:04 UTC 2020] code='201'
[Tue Jun 30 00:51:04 UTC 2020] Le_LinkOrder='https://acme-v02.api.letsencrypt.org/acme/order/61973942/3984600516'
[Tue Jun 30 00:51:04 UTC 2020] Le_OrderFinalize='https://acme-v02.api.letsencrypt.org/acme/finalize/61973942/3984600516'
[Tue Jun 30 00:51:04 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/authz-v3/5562603567'
[Tue Jun 30 00:51:04 UTC 2020] payload
[Tue Jun 30 00:51:04 UTC 2020] POST
[Tue Jun 30 00:51:04 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/authz-v3/5562603567'
[Tue Jun 30 00:51:04 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:05 UTC 2020] _ret='0'
[Tue Jun 30 00:51:05 UTC 2020] code='200'
[Tue Jun 30 00:51:05 UTC 2020] d='community.wappler.io'
[Tue Jun 30 00:51:05 UTC 2020] Getting webroot for domain='community.wappler.io'
[Tue Jun 30 00:51:05 UTC 2020] _w='/var/www/discourse/public'
[Tue Jun 30 00:51:05 UTC 2020] _currentRoot='/var/www/discourse/public'
[Tue Jun 30 00:51:05 UTC 2020] entry='"type":"http-01","status":"pending","url":"https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww","token":"4R4zLJ4iIGITDWBtCaL0ex79Q7M1WVoEzNYrcncLLCU"'
[Tue Jun 30 00:51:05 UTC 2020] token='4R4zLJ4iIGITDWBtCaL0ex79Q7M1WVoEzNYrcncLLCU'
[Tue Jun 30 00:51:05 UTC 2020] uri='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:05 UTC 2020] keyauthorization='4R4zLJ4iIGITDWBtCaL0ex79Q7M1WVoEzNYrcncLLCU.oqk5F-Y-LWHoSgqmpv1QpHawY8D3qpVmWxAQ5avEEeQ'
[Tue Jun 30 00:51:05 UTC 2020] dvlist='community.wappler.io#4R4zLJ4iIGITDWBtCaL0ex79Q7M1WVoEzNYrcncLLCU.oqk5F-Y-LWHoSgqmpv1QpHawY8D3qpVmWxAQ5avEEeQ#https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww#http-01#/var/www/discourse/public'
[Tue Jun 30 00:51:05 UTC 2020] d
[Tue Jun 30 00:51:05 UTC 2020] vlist='community.wappler.io#4R4zLJ4iIGITDWBtCaL0ex79Q7M1WVoEzNYrcncLLCU.oqk5F-Y-LWHoSgqmpv1QpHawY8D3qpVmWxAQ5avEEeQ#https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww#http-01#/var/www/discourse/public,'
[Tue Jun 30 00:51:05 UTC 2020] d='community.wappler.io'
[Tue Jun 30 00:51:05 UTC 2020] ok, let's start to verify
[Tue Jun 30 00:51:05 UTC 2020] Verifying: community.wappler.io
[Tue Jun 30 00:51:05 UTC 2020] d='community.wappler.io'
[Tue Jun 30 00:51:05 UTC 2020] keyauthorization='4R4zLJ4iIGITDWBtCaL0ex79Q7M1WVoEzNYrcncLLCU.oqk5F-Y-LWHoSgqmpv1QpHawY8D3qpVmWxAQ5avEEeQ'
[Tue Jun 30 00:51:05 UTC 2020] uri='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:05 UTC 2020] _currentRoot='/var/www/discourse/public'
[Tue Jun 30 00:51:05 UTC 2020] wellknown_path='/var/www/discourse/public/.well-known/acme-challenge'
[Tue Jun 30 00:51:05 UTC 2020] writing token:4R4zLJ4iIGITDWBtCaL0ex79Q7M1WVoEzNYrcncLLCU to /var/www/discourse/public/.well-known/acme-challenge/4R4zLJ4iIGITDWBtCaL0ex79Q7M1WVoEzNYrcncLLCU
[Tue Jun 30 00:51:05 UTC 2020] Changing owner/group of .well-known to discourse:discourse
[Tue Jun 30 00:51:05 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:05 UTC 2020] payload='{}'
[Tue Jun 30 00:51:05 UTC 2020] POST
[Tue Jun 30 00:51:05 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:05 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:06 UTC 2020] _ret='0'
[Tue Jun 30 00:51:06 UTC 2020] code='200'
[Tue Jun 30 00:51:06 UTC 2020] trigger validation code: 200
[Tue Jun 30 00:51:06 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:08 UTC 2020] checking
[Tue Jun 30 00:51:08 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:08 UTC 2020] payload
[Tue Jun 30 00:51:08 UTC 2020] POST
[Tue Jun 30 00:51:08 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:08 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:08 UTC 2020] _ret='0'
[Tue Jun 30 00:51:08 UTC 2020] code='200'
[Tue Jun 30 00:51:08 UTC 2020] Pending
[Tue Jun 30 00:51:08 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:10 UTC 2020] checking
[Tue Jun 30 00:51:10 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:10 UTC 2020] payload
[Tue Jun 30 00:51:10 UTC 2020] POST
[Tue Jun 30 00:51:10 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:10 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:11 UTC 2020] _ret='0'
[Tue Jun 30 00:51:11 UTC 2020] code='200'
[Tue Jun 30 00:51:11 UTC 2020] Pending
[Tue Jun 30 00:51:11 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:13 UTC 2020] checking
[Tue Jun 30 00:51:13 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:13 UTC 2020] payload
[Tue Jun 30 00:51:13 UTC 2020] POST
[Tue Jun 30 00:51:13 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:13 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:14 UTC 2020] _ret='0'
[Tue Jun 30 00:51:14 UTC 2020] code='200'
[Tue Jun 30 00:51:14 UTC 2020] Pending
[Tue Jun 30 00:51:14 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:16 UTC 2020] checking
[Tue Jun 30 00:51:16 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:16 UTC 2020] payload
[Tue Jun 30 00:51:16 UTC 2020] POST
[Tue Jun 30 00:51:16 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:16 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:16 UTC 2020] _ret='0'
[Tue Jun 30 00:51:16 UTC 2020] code='200'
[Tue Jun 30 00:51:16 UTC 2020] Pending
[Tue Jun 30 00:51:16 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:18 UTC 2020] checking
[Tue Jun 30 00:51:18 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:18 UTC 2020] payload
[Tue Jun 30 00:51:18 UTC 2020] POST
[Tue Jun 30 00:51:18 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:18 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:19 UTC 2020] _ret='0'
[Tue Jun 30 00:51:19 UTC 2020] code='200'
[Tue Jun 30 00:51:19 UTC 2020] Pending
[Tue Jun 30 00:51:19 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:21 UTC 2020] checking
[Tue Jun 30 00:51:21 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:21 UTC 2020] payload
[Tue Jun 30 00:51:21 UTC 2020] POST
[Tue Jun 30 00:51:21 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:21 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:23 UTC 2020] _ret='0'
[Tue Jun 30 00:51:23 UTC 2020] code='200'
[Tue Jun 30 00:51:23 UTC 2020] Pending
[Tue Jun 30 00:51:23 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:25 UTC 2020] checking
[Tue Jun 30 00:51:25 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:25 UTC 2020] payload
[Tue Jun 30 00:51:25 UTC 2020] POST
[Tue Jun 30 00:51:25 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:25 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:25 UTC 2020] _ret='0'
[Tue Jun 30 00:51:25 UTC 2020] code='200'
[Tue Jun 30 00:51:25 UTC 2020] Pending
[Tue Jun 30 00:51:25 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:27 UTC 2020] checking
[Tue Jun 30 00:51:27 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:27 UTC 2020] payload
[Tue Jun 30 00:51:27 UTC 2020] POST
[Tue Jun 30 00:51:27 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:27 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:28 UTC 2020] _ret='0'
[Tue Jun 30 00:51:28 UTC 2020] code='200'
[Tue Jun 30 00:51:28 UTC 2020] community.wappler.io:Verify error:Fetching https://community.wappler.io/.well-known/acme-challenge/4R4zLJ4iIGITDWBtCaL0ex79Q7M1WVoEzNYrcncLLCU: Timeout during connect (likely firewall problem)
[Tue Jun 30 00:51:28 UTC 2020] pid
[Tue Jun 30 00:51:28 UTC 2020] No need to restore nginx, skip.
[Tue Jun 30 00:51:28 UTC 2020] _clearupdns
[Tue Jun 30 00:51:28 UTC 2020] dns_entries
[Tue Jun 30 00:51:28 UTC 2020] skip dns.
[Tue Jun 30 00:51:28 UTC 2020] _on_issue_err
[Tue Jun 30 00:51:28 UTC 2020] Please check log file for more details: /shared/letsencrypt/acme.sh.log
[Tue Jun 30 00:51:28 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:28 UTC 2020] payload='{}'
[Tue Jun 30 00:51:28 UTC 2020] POST
[Tue Jun 30 00:51:28 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562603567/kO4gww'
[Tue Jun 30 00:51:28 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:29 UTC 2020] _ret='0'
[Tue Jun 30 00:51:29 UTC 2020] code='400'
[Tue Jun 30 00:51:29 UTC 2020] Return code: 1
[Tue Jun 30 00:51:29 UTC 2020] Error renew community.wappler.io.
[Tue Jun 30 00:51:29 UTC 2020] di='/shared/letsencrypt/community.wappler.io_ecc/'
[Tue Jun 30 00:51:29 UTC 2020] d='community.wappler.io_ecc'
[Tue Jun 30 00:51:29 UTC 2020] Using config home:/shared/letsencrypt
[Tue Jun 30 00:51:29 UTC 2020] ACME_DIRECTORY='https://acme-v02.api.letsencrypt.org/directory'
[Tue Jun 30 00:51:29 UTC 2020] DOMAIN_PATH='/shared/letsencrypt/community.wappler.io_ecc'
[Tue Jun 30 00:51:29 UTC 2020] Renew: 'community.wappler.io'
[Tue Jun 30 00:51:29 UTC 2020] Le_API
[Tue Jun 30 00:51:29 UTC 2020] _main_domain='community.wappler.io'
[Tue Jun 30 00:51:29 UTC 2020] _alt_domains='no'
[Tue Jun 30 00:51:29 UTC 2020] Using ACME_DIRECTORY: https://acme-v02.api.letsencrypt.org/directory
[Tue Jun 30 00:51:29 UTC 2020] _init api for server: https://acme-v02.api.letsencrypt.org/directory
[Tue Jun 30 00:51:29 UTC 2020] GET
[Tue Jun 30 00:51:29 UTC 2020] url='https://acme-v02.api.letsencrypt.org/directory'
[Tue Jun 30 00:51:29 UTC 2020] timeout=
[Tue Jun 30 00:51:29 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:29 UTC 2020] ret='0'
[Tue Jun 30 00:51:29 UTC 2020] ACME_KEY_CHANGE='https://acme-v02.api.letsencrypt.org/acme/key-change'
[Tue Jun 30 00:51:29 UTC 2020] ACME_NEW_AUTHZ
[Tue Jun 30 00:51:29 UTC 2020] ACME_NEW_ORDER='https://acme-v02.api.letsencrypt.org/acme/new-order'
[Tue Jun 30 00:51:29 UTC 2020] ACME_NEW_ACCOUNT='https://acme-v02.api.letsencrypt.org/acme/new-acct'
[Tue Jun 30 00:51:29 UTC 2020] ACME_REVOKE_CERT='https://acme-v02.api.letsencrypt.org/acme/revoke-cert'
[Tue Jun 30 00:51:29 UTC 2020] ACME_AGREEMENT='https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf'
[Tue Jun 30 00:51:29 UTC 2020] ACME_NEW_NONCE='https://acme-v02.api.letsencrypt.org/acme/new-nonce'
[Tue Jun 30 00:51:29 UTC 2020] ACME_VERSION='2'
[Tue Jun 30 00:51:29 UTC 2020] Le_NextRenewTime='1591011142'
[Tue Jun 30 00:51:29 UTC 2020] _on_before_issue
[Tue Jun 30 00:51:29 UTC 2020] _chk_main_domain='community.wappler.io'
[Tue Jun 30 00:51:29 UTC 2020] _chk_alt_domains
[Tue Jun 30 00:51:29 UTC 2020] Le_LocalAddress
[Tue Jun 30 00:51:29 UTC 2020] d='community.wappler.io'
[Tue Jun 30 00:51:29 UTC 2020] Check for domain='community.wappler.io'
[Tue Jun 30 00:51:29 UTC 2020] _currentRoot='/var/www/discourse/public'
[Tue Jun 30 00:51:29 UTC 2020] d
[Tue Jun 30 00:51:29 UTC 2020] _saved_account_key_hash is not changed, skip register account.
[Tue Jun 30 00:51:29 UTC 2020] Read key length:ec-256
[Tue Jun 30 00:51:29 UTC 2020] _createcsr
[Tue Jun 30 00:51:29 UTC 2020] Single domain='community.wappler.io'
[Tue Jun 30 00:51:30 UTC 2020] Getting domain auth token for each domain
[Tue Jun 30 00:51:30 UTC 2020] d
[Tue Jun 30 00:51:30 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/new-order'
[Tue Jun 30 00:51:30 UTC 2020] payload='{"identifiers": [{"type":"dns","value":"community.wappler.io"}]}'
[Tue Jun 30 00:51:30 UTC 2020] RSA key
[Tue Jun 30 00:51:30 UTC 2020] HEAD
[Tue Jun 30 00:51:30 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/new-nonce'
[Tue Jun 30 00:51:30 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g -I '
[Tue Jun 30 00:51:30 UTC 2020] _ret='0'
[Tue Jun 30 00:51:30 UTC 2020] POST
[Tue Jun 30 00:51:30 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/new-order'
[Tue Jun 30 00:51:30 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:31 UTC 2020] _ret='0'
[Tue Jun 30 00:51:31 UTC 2020] code='201'
[Tue Jun 30 00:51:31 UTC 2020] Le_LinkOrder='https://acme-v02.api.letsencrypt.org/acme/order/61973942/3984605699'
[Tue Jun 30 00:51:31 UTC 2020] Le_OrderFinalize='https://acme-v02.api.letsencrypt.org/acme/finalize/61973942/3984605699'
[Tue Jun 30 00:51:31 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/authz-v3/5562611296'
[Tue Jun 30 00:51:31 UTC 2020] payload
[Tue Jun 30 00:51:31 UTC 2020] POST
[Tue Jun 30 00:51:31 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/authz-v3/5562611296'
[Tue Jun 30 00:51:31 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:31 UTC 2020] _ret='0'
[Tue Jun 30 00:51:31 UTC 2020] code='200'
[Tue Jun 30 00:51:31 UTC 2020] d='community.wappler.io'
[Tue Jun 30 00:51:31 UTC 2020] Getting webroot for domain='community.wappler.io'
[Tue Jun 30 00:51:31 UTC 2020] _w='/var/www/discourse/public'
[Tue Jun 30 00:51:31 UTC 2020] _currentRoot='/var/www/discourse/public'
[Tue Jun 30 00:51:32 UTC 2020] entry='"type":"http-01","status":"pending","url":"https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA","token":"1Jmi14PFJCK5CFdXT5CJDdeRcbBDfyBgKlbCH7xLLvI"'
[Tue Jun 30 00:51:32 UTC 2020] token='1Jmi14PFJCK5CFdXT5CJDdeRcbBDfyBgKlbCH7xLLvI'
[Tue Jun 30 00:51:32 UTC 2020] uri='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:32 UTC 2020] keyauthorization='1Jmi14PFJCK5CFdXT5CJDdeRcbBDfyBgKlbCH7xLLvI.oqk5F-Y-LWHoSgqmpv1QpHawY8D3qpVmWxAQ5avEEeQ'
[Tue Jun 30 00:51:32 UTC 2020] dvlist='community.wappler.io#1Jmi14PFJCK5CFdXT5CJDdeRcbBDfyBgKlbCH7xLLvI.oqk5F-Y-LWHoSgqmpv1QpHawY8D3qpVmWxAQ5avEEeQ#https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA#http-01#/var/www/discourse/public'
[Tue Jun 30 00:51:32 UTC 2020] d
[Tue Jun 30 00:51:32 UTC 2020] vlist='community.wappler.io#1Jmi14PFJCK5CFdXT5CJDdeRcbBDfyBgKlbCH7xLLvI.oqk5F-Y-LWHoSgqmpv1QpHawY8D3qpVmWxAQ5avEEeQ#https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA#http-01#/var/www/discourse/public,'
[Tue Jun 30 00:51:32 UTC 2020] d='community.wappler.io'
[Tue Jun 30 00:51:32 UTC 2020] ok, let's start to verify
[Tue Jun 30 00:51:32 UTC 2020] Verifying: community.wappler.io
[Tue Jun 30 00:51:32 UTC 2020] d='community.wappler.io'
[Tue Jun 30 00:51:32 UTC 2020] keyauthorization='1Jmi14PFJCK5CFdXT5CJDdeRcbBDfyBgKlbCH7xLLvI.oqk5F-Y-LWHoSgqmpv1QpHawY8D3qpVmWxAQ5avEEeQ'
[Tue Jun 30 00:51:32 UTC 2020] uri='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:32 UTC 2020] _currentRoot='/var/www/discourse/public'
[Tue Jun 30 00:51:32 UTC 2020] wellknown_path='/var/www/discourse/public/.well-known/acme-challenge'
[Tue Jun 30 00:51:32 UTC 2020] writing token:1Jmi14PFJCK5CFdXT5CJDdeRcbBDfyBgKlbCH7xLLvI to /var/www/discourse/public/.well-known/acme-challenge/1Jmi14PFJCK5CFdXT5CJDdeRcbBDfyBgKlbCH7xLLvI
[Tue Jun 30 00:51:32 UTC 2020] Changing owner/group of .well-known to discourse:discourse
[Tue Jun 30 00:51:32 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:32 UTC 2020] payload='{}'
[Tue Jun 30 00:51:32 UTC 2020] POST
[Tue Jun 30 00:51:32 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:32 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:32 UTC 2020] _ret='0'
[Tue Jun 30 00:51:32 UTC 2020] code='200'
[Tue Jun 30 00:51:32 UTC 2020] trigger validation code: 200
[Tue Jun 30 00:51:32 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:34 UTC 2020] checking
[Tue Jun 30 00:51:34 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:34 UTC 2020] payload
[Tue Jun 30 00:51:34 UTC 2020] POST
[Tue Jun 30 00:51:34 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:34 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:35 UTC 2020] _ret='0'
[Tue Jun 30 00:51:35 UTC 2020] code='200'
[Tue Jun 30 00:51:35 UTC 2020] Pending
[Tue Jun 30 00:51:35 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:37 UTC 2020] checking
[Tue Jun 30 00:51:37 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:37 UTC 2020] payload
[Tue Jun 30 00:51:37 UTC 2020] POST
[Tue Jun 30 00:51:37 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:37 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:37 UTC 2020] _ret='0'
[Tue Jun 30 00:51:38 UTC 2020] code='200'
[Tue Jun 30 00:51:38 UTC 2020] Pending
[Tue Jun 30 00:51:38 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:40 UTC 2020] checking
[Tue Jun 30 00:51:40 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:40 UTC 2020] payload
[Tue Jun 30 00:51:40 UTC 2020] POST
[Tue Jun 30 00:51:40 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:40 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:40 UTC 2020] _ret='0'
[Tue Jun 30 00:51:40 UTC 2020] code='200'
[Tue Jun 30 00:51:40 UTC 2020] Pending
[Tue Jun 30 00:51:40 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:42 UTC 2020] checking
[Tue Jun 30 00:51:42 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:42 UTC 2020] payload
[Tue Jun 30 00:51:42 UTC 2020] POST
[Tue Jun 30 00:51:42 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:42 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:43 UTC 2020] _ret='0'
[Tue Jun 30 00:51:43 UTC 2020] code='200'
[Tue Jun 30 00:51:43 UTC 2020] Pending
[Tue Jun 30 00:51:43 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:45 UTC 2020] checking
[Tue Jun 30 00:51:45 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:45 UTC 2020] payload
[Tue Jun 30 00:51:45 UTC 2020] POST
[Tue Jun 30 00:51:45 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:45 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:45 UTC 2020] _ret='0'
[Tue Jun 30 00:51:45 UTC 2020] code='200'
[Tue Jun 30 00:51:46 UTC 2020] Pending
[Tue Jun 30 00:51:46 UTC 2020] sleep 2 secs to verify
[Tue Jun 30 00:51:48 UTC 2020] checking
[Tue Jun 30 00:51:48 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:48 UTC 2020] payload
[Tue Jun 30 00:51:48 UTC 2020] POST
[Tue Jun 30 00:51:48 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:48 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:48 UTC 2020] _ret='0'
[Tue Jun 30 00:51:48 UTC 2020] code='200'
[Tue Jun 30 00:51:48 UTC 2020] community.wappler.io:Verify error:Fetching https://community.wappler.io/.well-known/acme-challenge/1Jmi14PFJCK5CFdXT5CJDdeRcbBDfyBgKlbCH7xLLvI: Error getting validation data
[Tue Jun 30 00:51:48 UTC 2020] pid
[Tue Jun 30 00:51:48 UTC 2020] No need to restore nginx, skip.
[Tue Jun 30 00:51:48 UTC 2020] _clearupdns
[Tue Jun 30 00:51:48 UTC 2020] dns_entries
[Tue Jun 30 00:51:48 UTC 2020] skip dns.
[Tue Jun 30 00:51:48 UTC 2020] _on_issue_err
[Tue Jun 30 00:51:48 UTC 2020] Please check log file for more details: /shared/letsencrypt/acme.sh.log
[Tue Jun 30 00:51:48 UTC 2020] url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:48 UTC 2020] payload='{}'
[Tue Jun 30 00:51:48 UTC 2020] POST
[Tue Jun 30 00:51:48 UTC 2020] _post_url='https://acme-v02.api.letsencrypt.org/acme/chall-v3/5562611296/RB9_XA'
[Tue Jun 30 00:51:48 UTC 2020] _CURL='curl -L --silent --dump-header /shared/letsencrypt/http.header -g '
[Tue Jun 30 00:51:49 UTC 2020] _ret='0'
[Tue Jun 30 00:51:49 UTC 2020] code='400'
[Tue Jun 30 00:51:49 UTC 2020] Return code: 1
[Tue Jun 30 00:51:49 UTC 2020] Error renew community.wappler.io_ecc.
[Tue Jun 30 00:51:49 UTC 2020] di='/shared/letsencrypt/example.com/'
[Tue Jun 30 00:51:49 UTC 2020] d='example.com'
[Tue Jun 30 00:51:49 UTC 2020] Using config home:/shared/letsencrypt
[Tue Jun 30 00:51:49 UTC 2020] ACME_DIRECTORY='https://acme-v02.api.letsencrypt.org/directory'
[Tue Jun 30 00:51:49 UTC 2020] DOMAIN_PATH='/shared/letsencrypt/example.com'
[Tue Jun 30 00:51:49 UTC 2020] Renew: 'example.com'
[Tue Jun 30 00:51:49 UTC 2020] Le_API
[Tue Jun 30 00:51:49 UTC 2020] Skip invalid cert for: example.com
[Tue Jun 30 00:51:49 UTC 2020] Return code: 2
[Tue Jun 30 00:51:49 UTC 2020] Skipped example.com
[Tue Jun 30 00:51:49 UTC 2020] _error_level='1'
[Tue Jun 30 00:51:49 UTC 2020] _set_level='2'
[Tue Jun 30 00:51:49 UTC 2020] The NOTIFY_HOOK is empty, just return.
[Tue Jun 30 00:51:49 UTC 2020] ===End cron===
这通常意味着 AAAA DNS 记录配置有误。正如
我推测确实如此。
既然我们在 DigitalOcean 上托管多个网站时，IPv6 配合 Let’s Encrypt 运行正常，这看起来是用户操作问题。如果您能提供可复现的步骤，请开启一个新话题。