ISO 27001 Evidence for TLS and Access Logs
Auditors do not usually ask for magic. They ask reasonable questions that become painful when infrastructure evidence lives across hosts, Slack, CI logs, and someone’s laptop.
For TLS and access, the evidence should already exist because the workflow produced it.
Evidence chain for TLS and access
Evidence quality by source
Useful once, weak as a process.
Detailed but scattered.
Good collection, not always live proof.
Evidence created during real work.
TLS evidence
Keep certificate owner, expiry, issuer, renewal workflow, delivery target, reload result, endpoint probe result, and exception history.
The important detail is the live endpoint result. Inventory alone is not evidence that production served the right certificate.
Access evidence
Keep who requested access, who approved it, which host or secret was accessed, what scope was granted, when it expired, and whether 2FA was used.
Shared SSH keys make this harder because they collapse many people into one credential.
Secret evidence
Keep version history, change actor, access logs, owning group, rotation date, dependent systems, and rollback history.
The evidence is stronger when it comes from the system used by engineers, not a manually assembled PDF.
Evidence to keep
- ✓ Certificate inventory and live endpoint probe results.
- ✓ Renewal, delivery, reload, and failure records.
- ✓ SSH/RDP access requests, scopes, expiry, and session records.
- ✓ Secret read/change history and version rollback records.
- ✓ Exception records with owner and review date.
Related reading and workflows
Certificate lifecycle management
Inventory, renewal, delivery, ownership, and audit for TLS certificates.
Certificate delivery tokens
Scoped certificate access for HAProxy, IIS, Nginx, scripts, and automation.
Endpoint probes
Check what production endpoints actually serve after renewal.
SSH access management
Short-lived SSH access, browser sessions, 2FA, groups, and audit.
Zero-trust SSH use case
A practical model for replacing long-lived PEM files.
Short-lived SSH access with 2FA
How CertLocker handles scoped server access and audit trails.
Secrets management
Versioned secrets, scoped access, groups, and audit evidence.
Secrets and TLS automation
Why secrets and certificate workflows belong close together.
Secret version history
Browse, restore, and audit older secret values without guesswork.
Try the workflow against real infrastructure
Use the hosted evaluation at trust.certlocker.io for a walkthrough, or run a one-month onsite evaluation against your own certificates, hosts, secrets, and access paths.