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Welcome to Let's Encrypt Community Support
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1
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88739
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August 7, 2015
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Acme Challenge Failed to Download Challenge Files
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7
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55
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June 14, 2026
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Want get R13 (ISRG Root X1) with acme.sh or certbot script
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15
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384
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June 13, 2026
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Why issue certificate for max.ru forbidden by policy?
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13
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3560
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June 13, 2026
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Cannot connect to Let's Encrypt using IPv6
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7
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88
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June 12, 2026
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Certbot Azure DNS pluing
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0
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40
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June 12, 2026
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Can my IP is blocked?
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9
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186
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June 12, 2026
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Migrating 1,200 Let's Encrypt Certificates from cert-manager to Caddy
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7
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181
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June 12, 2026
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Securing public IP link for intranet access
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2
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118
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June 12, 2026
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Is TLS1.4 going to have PQC (Post-Quantum Cryptography)?
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8
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217
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June 11, 2026
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Fail to renew NGINX cert
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6
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80
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June 11, 2026
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Transitioning to 45-day certs: How to handle certificates with >25 SANs (blocked by `tlsserver` limit)
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8
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211
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June 11, 2026
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TSplus certificate installation error
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4
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93
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June 11, 2026
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Installing across 2 servers
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7
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78
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June 11, 2026
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Chain validation issues with YE/YR under Linux distributions
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10
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814
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June 10, 2026
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Certificate Transparency Search Resources
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9
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6269
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September 13, 2023
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Request tlsclient profile access for account 3389924466
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3
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114
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June 9, 2026
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Cloudfare blocking Certbot?
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2
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106
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June 9, 2026
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Apache GIT Workflow
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1
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64
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June 9, 2026
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The key authorization file from the server did not match this challenge
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4
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108
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June 9, 2026
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Need help adding YR to store on Debian server
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5
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158
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June 9, 2026
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Guidance on Security Review for Let’s Encrypt Adoption
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7
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201
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June 8, 2026
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Certsage Urn:ietf:params:acme:error:malformed
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80
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807
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June 8, 2026
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[SSL/TLS certificate] issue
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2
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128
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June 8, 2026
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OCSP responders r11.o.lencr.org and r3.o.lencr.org returning NXDOMAIN — OCSP stapling unavailable
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1
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104
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June 8, 2026
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RFC2136 with Bind 9.20.23 and Certbot 5.6.0 on Archlinux errors
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4
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77
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June 8, 2026
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Gmail opportunistic TLS distrusting LE-issued certificate
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9
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239
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June 6, 2026
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We could not verify the certificate: reason = oscp_error
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4
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193
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June 6, 2026
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[Let's Encrypt Blog] A Post-Quantum Future for Let's Encrypt
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10
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366
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June 5, 2026
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Cert is not getting issued to akamain failing CAA check
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12
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202
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June 5, 2026
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