Let's Encrypt Community Support

Topic	Replies	Views	Activity
Palo Alto firewall users with failing HTTP-01 challenges: enable "acme-protocol" Help Hi Let's Encrypt users, Do you have a Palo Alto brand firewall product on your network? Are you having unexpected trouble renewing an existing Let's Encrypt certificate since about April 2022 using an HTTP-01 challenge …	1	379	May 12, 2022
Welcome to Let's Encrypt Community Support	1	59139	August 7, 2015
Ssl certificate not accepted as trusted on some browsers Help	24	173	May 19, 2022
Want working certbot on backend mailserver Help	0	28	May 19, 2022
Root Cert Not included in Windows 10? Help	7	120	May 19, 2022
Questions about TLS 1.0 / 1.1 deprecation for ACME requests Help	14	433	May 19, 2022
New certificate fails - invalid response /.well-known/acme-challenge Help	8	183	May 18, 2022
Cannot Install SSL certificate Help	14	228	May 18, 2022
DNS problem: SERVFAIL looking up A Help	5	73	May 18, 2022
Tls_parse_ctos_key_share:bad key share Help	2	58	May 18, 2022
Certificate renewal fails for MacOS FM Server Help	4	78	May 18, 2022
Nginx Proxy Manager GUI / Setting up new SSL cert Help	2	78	May 18, 2022
Switching to DNS challence - challenge timeout, implementation best practices? Help	9	188	May 18, 2022
Rejecting SHA-1 CSRs - New hash algorithm Help	10	148	May 18, 2022
DNS mystery in http-01 :) Help	18	341	May 18, 2022
Unable to determine zone identifier for takepaymentsplus.com using zone names: ['takepaymentsplus.com', 'com'] Help	3	95	May 18, 2022
Certbot renew failed; (a) why is my server unreachable? (b) can I renew without reaching it? Help	19	241	May 18, 2022
Applying SSL to all sites on a Debian Server Help	5	116	May 18, 2022
Https is not working any more http is Help	23	408	May 17, 2022
Rejecting TLS 1.0 / 1.1 for inbound ACME connections API Announcements	1	378	May 17, 2022
Certbot renew --dry-run fails Help	1	60	May 17, 2022
The certificate is only valid for *.XX.duckdns.org Help	4	65	May 17, 2022
Reporting Extended DNS Errors in Boulder problems Feature Requests	22	368	May 17, 2022
The Certificate Authority failed to download the temporary challenge files created by Certbot Help	1	77	May 17, 2022
New Certificate Fails - None of the preferred challenges are supported by the selected plugin Help	6	78	May 17, 2022
Certbot error with executing Help	9	113	May 17, 2022
Certificate firewall Ajuda (em português)	15	320	May 17, 2022
Unable to get wildcard certificate but can get normal certificate Help	6	183	May 17, 2022
SSL not working Help	2	100	May 17, 2022
Error veirification of the certificate chain Invalid SSL certificates Help	6	131	May 17, 2022

Palo Alto firewall users with failing HTTP-01 challenges: enable "acme-protocol"

Hi Let's Encrypt users, Do you have a Palo Alto brand firewall product on your network? Are you having unexpected trouble renewing an existing Let's Encrypt certificate since about April 2022 using an HTTP-01 challenge …