This product has charges associated with it for hardening, security configuration, and support.
step-ca is a private online certificate authority and ACME server, shipped as a single statically linked Go binary over an embedded key-value store with no external database. This Lynxroute build is hardened and ready out of the box: the root and intermediate CA keys are generated on your own instance at first launch and never baked into the image, the token provisioner is locked with a 24-character random password unique to the instance, ACME-issued certificates are capped at 24 hours, no plaintext listener and no management API are exposed, UFW firewall pre-configured, and a CIS Level 1 hardened Ubuntu 24.04 LTS base.
Apache-2.0 license - fully auditable, no vendor lock-in.
This is a repackaged software product wherein additional charges apply for hardening, security configuration, and support.
WHAT IS STEP-CA
step-ca is a private online certificate authority from Smallstep, shipped here as a single statically linked Go binary. It issues short-lived X.509 certificates for internal services over its own REST API and over ACME, so any standard ACME client works against it, including Certbot, acme.sh, lego, Caddy, Traefik and cert-manager. It supports token-based issuance through a JWK provisioner, certificate renewal over mutual TLS, and revocation. All state - issued certificates and ACME accounts - persists in an embedded Badger key-value store on the instance, so there is no database server to run, patch or back up separately. Public certificate authorities will not issue for internal host names or private IP addresses; running your own means real TLS on internal services, on names and lifetimes you choose, with the root key under your control. Apache-2.0 license, no vendor lock-in.
WHAT THIS AMI ADDS
Security hardening:
Root and intermediate CA keys, and the passwords protecting them, are generated on your own instance at first launch - nothing is baked into the image, so no two deployments share a certificate authority
Token-based issuance is gated by a 24-character random password generated per instance
Certificates issued over ACME are capped at a 24 hour lifetime, which keeps renewal automated and limits exposure
Remote provisioner management is switched off, so no management API is served
No plaintext listener is configured; TLS 1.2 is the floor and renegotiation is disabled
The service runs as a dedicated non-root user under a read-only filesystem namespace, with writes limited to its database and log, and only the single capability it needs to bind port 443
The generated root certificate is installed into the instance trust store, so local tooling trusts the new CA immediately
UFW firewall pre-configured - inbound limited to SSH on 22 and the CA API on 443
fail2ban and AppArmor pre-configured
CVE scan - every image is scanned for vulnerabilities before release
OS hardening (CIS Level 1):
CIS Ubuntu 24.04 LTS Level 1 benchmark applied via ansible-lockdown
CIS Conformance Report at /etc/lynxroute/cis-report.html
CIS Tailored Profile at /usr/share/doc/lynxroute/CIS_TAILORED_PROFILE.md
IMPORTANT - HOW ACME ACCESS IS CONTROLLED
Certificate requests through the token provisioner always require the provisioner password. Certificate requests through ACME are not individually authenticated: anything that can reach port 443 on this instance can be issued a certificate by this CA. Restrict inbound 443 to the networks allowed to enrol, or remove the ACME provisioner with the single command given in the credentials file on the instance.
Highlights
step-ca security baked in: root and intermediate CA keys generated on your own instance at first launch and never baked into the image, token issuance gated by a 24-character random password unique to the instance, ACME certificates capped at a 24 hour lifetime, no plaintext listener and no management API exposed, UFW firewall pre-configured.
CIS Level 1 hardened Ubuntu 24.04 LTS: auditd, fail2ban, AppArmor, SSH key-only, IMDSv2 enforced. CVE-scanned before every release. SBOM (CycloneDX) and CIS Conformance Report included.
Real TLS on internal names: issue certificates for internal host names and private IP addresses that public CAs will not sign, automated through ACME with any standard client. Apache-2.0 license - fully auditable, no vendor lock-in.
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Try this product free for 5 days according to the free trial terms set by the vendor. Usage-based pricing is in effect for usage beyond the free trial terms. Your free trial gets automatically converted to a paid subscription when the trial ends, but may be canceled any time before that.
You pay by the hour for the EC2 instance size you run this Certificate Authority software on. Five instance options let you match compute to your workload. The t3 family (t3.small, t3.medium, t3.large) offers general-purpose sizing that scales up as you move from small to large. The m6i family (m6i.large, m6i.xlarge) provides another general-purpose path, with the xlarge adding more capacity than the large. All five carry the same software; you choose based on the compute and memory your deployment needs. Hourly billing means you pay only while an instance runs.
Top-of-mind questions for buyers
What resources do I get with each instance option, and how do they differ?
Each option maps to one running EC2 instance you pay for by the hour. The t3 sizes (small, medium, large) and m6i sizes (large, xlarge) are general-purpose instances that differ in CPU and memory. You pick the one matching your certificate workload. All run the same Certificate Authority software.
Am I charged when the instance is stopped or paused?
Hourly software charges apply only while the instance runs. Fully stopped instances do not accrue software charges. Stopped instances may still incur underlying AWS storage fees for attached volumes, but the software license meters running hours only. You pay only for active time.
What deployment and certificate features are included regardless of which instance I choose?
All instances run the same Certificate Authority software. It issues X.509 and SSH certificates, supports automated enrollment and renewal through the ACME protocol, and offers configurable provisioners and certificate templates. It also supports signing-key protection through hardware security module integrations. Your instance choice affects compute capacity, not features.
smallstep.com
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An AMI is a virtual image that provides the information required to launch an instance. Amazon EC2 (Elastic Compute Cloud) instances are virtual servers on which you can run your applications and workloads, offering varying combinations of CPU, memory, storage, and networking resources. You can launch as many instances from as many different AMIs as you need.
Version release notes
step-ca 0.30.2 - Initial release (August 2026)
step-ca 0.30.2 on Ubuntu 24.04 LTS, with the step CLI 0.30.6 included
Note the CA URL, the root fingerprint, the provisioner password and the ACME directory URL from that file
On a client machine, install the step CLI and pin this CA by its fingerprint:
step ca bootstrap --ca-url https://<PUBLIC_IP> --fingerprint <the fingerprint from the credentials file> --install
Issue a certificate:
step ca certificate myservice.internal myservice.crt myservice.key
You will be prompted for the provisioner password.
Or point any ACME client at the directory URL, for example:
certbot certonly --standalone --server https://<PUBLIC_IP>/acme/acme/directory -d myservice.internal
The CA presents its own certificate, issued by its own intermediate, so clients establish trust by pinning the root fingerprint in step 6 rather than by a public trust store. That is expected for a private CA.
Certificate requests through the token provisioner require the provisioner password. Certificate requests through ACME are not individually authenticated - anything that can reach port 443 can be issued a certificate. Restrict inbound 443 accordingly, or remove the ACME provisioner using the command in the credentials file.
Certificates default to a 24 hour lifetime; renew with step ca renew before expiry, or let your ACME client handle it.
All credentials are saved to /root/step-ca-credentials.txt at first launch. Move them into your secret manager and delete the file before production use. For the strongest posture, copy /etc/step-ca/secrets/root_ca_key to offline storage and delete it from the instance - the CA signs with the intermediate key and does not need the root online.
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
This is a repackaged open source software product wherein additional charges apply for a pre-hardened AMI with automated startup. Self-hosted private certificate authority.
Geocoder.ca delivers unlimited self-hosted geocoding and geoparsing for USA and Canada with over 99% coverage, rooftop accuracy, and no per-query fees.
This product has charges associated with it for hardening, security configuration, and support.
Checkmk Community Edition is a self-contained infrastructure and application monitoring server: one package carries its own web server, Python runtime, cache, message broker and time-series storage, with agent-based and agentless checks for several hundred technologies. This Lynxroute build is hardened and ready out of the box: the monitoring site and every one of its keys is generated on your own instance at first boot, all site listeners are pinned to loopback behind an nginx TLS perimeter, the Checkmk agent is installed ready for the first host, UFW firewall pre-configured, and a CIS Level 1 hardened Ubuntu 24.04 LTS base.
GPL-2.0 license - fully auditable, no vendor lock-in.
This product has charges associated with it for hardening, security configuration, and support.
Apache NiFi is an open-source dataflow automation server - a Java application whose browser canvas lets you build, run and monitor data pipelines from more than 400 ready-made processors without writing code. This Lynxroute build is hardened and ready out of the box: a random administrator password generated at first launch instead of the credentials NiFi would otherwise print only to a log file, a per-instance encryption key for sensitive flow properties, the application bound to loopback behind an nginx TLS perimeter, flow and repository data kept on a separate path that survives upgrades, UFW firewall pre-configured, and a CIS Level 1 hardened Ubuntu 24.04 LTS base.
Apache-2.0 license - fully auditable, no vendor lock-in. Apache NiFi is a trademark of the Apache Software Foundation.
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