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Welcome to Let's Encrypt Community Support
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1
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87079
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August 7, 2015
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Http-01 return no valid A records found
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4
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10
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January 15, 2026
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About Communication IP Address Restrictions
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4
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42
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January 15, 2026
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Pebble error : urn:ietf:params:acme:error:serverInternal :: no serial provided
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4
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88
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January 15, 2026
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Does Let’s Encrypt already support issuing certificates for IP addresses?
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7
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72
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January 15, 2026
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Failed to create certificate with Namecheap shared hosting
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1
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33
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January 14, 2026
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Synology DS916+ SSL broken?
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6
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101
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January 14, 2026
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Certbot failed to authenticate some domains
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6
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71
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January 14, 2026
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Unable to create certificate - Problems with CAA records using ACME terraform provider
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5
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108
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January 14, 2026
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I am unable to create a certificate in Fedora 43 for my website. "Some challenges have failed."
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66
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164
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January 14, 2026
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Certbot update request
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1
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55
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January 14, 2026
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Using shortlived in Prod
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9
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91
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January 13, 2026
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Error getting validation data
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22
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116
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January 13, 2026
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How to create Trusted Certificates using cerbot for xrdp server
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5
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125
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January 13, 2026
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ACME account is temp restricted? Rackspace failed to renew certificate?
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9
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94
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January 13, 2026
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HTTP 429 rate limit persists for over 2 months despite single-domain certificate requests
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3
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105
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January 13, 2026
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Unclear how to setup QNAP NAS using Cerbot with Let's Encrypt
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6
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54
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January 13, 2026
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Built a Rust-based monitor for those missing the old expiration emails
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17
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72
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January 13, 2026
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Secondary SERVFAIL DNS error running certbot
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52
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81
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January 13, 2026
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Can't install certbot using snap
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4
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35
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January 12, 2026
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Rate limit failures getting cert for newly added Public Suffix "us.ci"
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1
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65
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January 12, 2026
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Update Certificates Chains section for Gen Y Hierarchy
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6
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304
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January 12, 2026
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CMC and VMC Certificates?
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8
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86
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January 11, 2026
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Nginx Proxy Manager can not get a certificate. Why?
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18
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89
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January 11, 2026
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Will the changes at Certbot/snap/LE between now and 3/31/2026 mean a re-do of Certbot?
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16
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294
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January 9, 2026
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Issue renewing Let’s Encrypt SSL certificate automatically
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3
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197
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January 9, 2026
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Notification of New Intermediate CAs
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5
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151
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January 9, 2026
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Need assistance clearing stale DNS delegation data for DNS-01 validation
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1
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52
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January 8, 2026
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Timeout during connect (likely firewall problem)
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6
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99
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January 8, 2026
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Possible Issues on Windows with new YE/YR hierarchy
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3
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138
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January 8, 2026
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