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Welcome to Let's Encrypt Community Support
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0
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88969
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August 7, 2015
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Let’s Encrypt failed to download the temporary challenge files created by Certbot
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1
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83
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July 9, 2026
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AWS now offering certificates via ACME
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6
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285
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July 9, 2026
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Ending TLS Client Authentication Certificate Support in 2026
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6
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2968
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July 8, 2026
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Let's Encrypt wasn't able to access the verification file
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6
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111
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July 8, 2026
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How can I set the log file name for non-LE `certbot certonly` operations?
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2
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55
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July 8, 2026
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Juniper SRX 1600 SSL auto enrollment not working
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15
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313
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July 7, 2026
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Revocation Information in shortlived certificates
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3
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166
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July 7, 2026
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Certbot does not respect `cert-name` when it comes to path naming on disk
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3
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91
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July 7, 2026
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Urgent: Certbot 4.0.0 Renewal Suddenly Failing on Existing Production Nginx Server (Ubuntu 24.04)
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2
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114
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July 7, 2026
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Origin of security certificate
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4
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165
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July 6, 2026
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ACME Errors: Service busy; retry later
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20
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356
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July 4, 2026
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Degraded performance post-maintenance?
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6
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219
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July 3, 2026
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Installing cert on multiple servers (subdomains)
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2
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126
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July 3, 2026
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False positive: test.api.app.uca.edu.ar blocked as recursive on-demand issuance
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3
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123
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July 2, 2026
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DNS Problem, query time out for CAA and TXT records
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1
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99
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July 1, 2026
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DNS problem: query timed out looking up A record
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12
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186
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July 1, 2026
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Rate limit adjustment was approved by Let's Encrypt but the default 50-cert limit is still being enforced on our domain
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4
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218
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July 1, 2026
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DNS-01 validation using NS delegation for ACME challenge subdomain
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17
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341
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June 29, 2026
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Security STARTTLS and DANE
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3
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120
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June 28, 2026
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Yograded from Fedora 39
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5
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123
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June 28, 2026
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Too many requests for dyndns-service domain
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5
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167
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June 26, 2026
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Does Certbot currently support the ACME `dns-persist-01` challenge?
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1
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303
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June 26, 2026
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Unpause URL does not function
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7
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185
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June 26, 2026
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BR Violation Report: Let's Encrypt certificate issued for an unregistered domain *.ph
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8
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293
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June 25, 2026
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Dns-persist-01 deployment status and timeline
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16
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3082
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June 25, 2026
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Certbot shortlived retrying too often triggering rate limit
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6
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218
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June 25, 2026
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Too Many Request Error
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2
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119
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June 24, 2026
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Do you have any idea which IP addresses Let’s Encrypt uses for the HTTP-01 challenge?
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2
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130
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June 23, 2026
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Timeout during connect (likely firewall problem)
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4
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175
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June 23, 2026
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