[GH-ISSUE #5193] Support custom / internal ACME CA using HTTP-01 challenge #3136

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opened 2026-02-26 07:37:56 +03:00 by kerem · 0 comments

kerem commented

2026-02-26 07:37:56 +03:00

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Originally created by @vsc55 on GitHub (Jan 18, 2026).
Original GitHub issue: https://github.com/NginxProxyManager/nginx-proxy-manager/issues/5193

Is your feature request related to a problem? Please describe.
Nginx Proxy Manager only supports Let’s Encrypt as an ACME provider and does not allow configuring a custom ACME directory URL.
This prevents using NPM with an internal or private ACME CA, even when the CA supports the standard HTTP-01 challenge.

Describe the solution you'd like
Add support for a custom / internal ACME CA with:

Ability to configure a custom ACME directory URL
Ability to trust a custom root/intermediate CA
Support for HTTP-01 challenge for certificate issuance and renewal

Describe alternatives you've considered

Generating certificates externally using an ACME client and importing them as “Custom Certificates” in NPM
Using a different reverse proxy that supports custom ACME CAs

Additional context
This would enable fully automated certificate management in homelab and private environments without relying on Let’s Encrypt.

Originally created by @vsc55 on GitHub (Jan 18, 2026). Original GitHub issue: https://github.com/NginxProxyManager/nginx-proxy-manager/issues/5193 **Is your feature request related to a problem? Please describe.** Nginx Proxy Manager only supports Let’s Encrypt as an ACME provider and does not allow configuring a custom ACME directory URL. This prevents using NPM with an internal or private ACME CA, even when the CA supports the standard HTTP-01 challenge. **Describe the solution you'd like** Add support for a custom / internal ACME CA with: - Ability to configure a custom ACME directory URL - Ability to trust a custom root/intermediate CA - Support for HTTP-01 challenge for certificate issuance and renewal **Describe alternatives you've considered** - Generating certificates externally using an ACME client and importing them as “Custom Certificates” in NPM - Using a different reverse proxy that supports custom ACME CAs **Additional context** This would enable fully automated certificate management in homelab and private environments without relying on Let’s Encrypt.

kerem added the

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2026-02-26 07:37:56 +03:00

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starred/nginx-proxy-manager-NginxProxyManager#3136

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