Exchange Online: Restrict Application Access to a Single Mailbox
Limit an Exchange Online application to the mailboxes and operations it needs using application RBAC, then test both in-scope and out-of-scope access.
SSH Rejects an AD User: Check SSSD Access Filters
Troubleshoot SSH access for AD users on Ubuntu by separating identity lookup, SSSD access filters, PAM account checks and home-directory setup.
Test Your Docker Backups with an Isolated Restore
Test Docker backups in an isolated environment, verify application data and prevent copied email, scheduled jobs and DNS updates from affecting production.
VMware Aria Automation: Troubleshoot Incomplete TLS Certificate Chains
Troubleshoot Aria Automation certificate imports by checking the leaf, intermediate chain, trust anchors and the appliance-specific PEM format.
Use Azure Migrate Discovery to Find PHP Workloads in AVS
Use Azure Migrate inventory to identify potential PHP workloads in an AVS estate, validate discovery coverage and confirm findings inside guests and containers.
Azure Managed Identities: Scope Blob Storage and Key Vault Access
Grant an Azure managed identity scoped Blob Storage and Key Vault access, then verify its identity, network path and permitted application operations.
When DNS Breaks Email: Troubleshoot Mailu and Unbound
Trace Mailu email rejection through its DNS path, compare resolver results and repair Unbound validation while preserving DNSSEC and persistent state.
GitHub Actions to Azure: Fix Federated Credential Mismatches
Diagnose GitHub Actions Azure OIDC failures by comparing issuer, subject, audience, app identity and the workflow context before changing federation trust.
Secure Azure Static Web Apps with IP Rules and Conditional Access
Use Static Web Apps IP restrictions and Microsoft Entra Conditional Access as separate layers, then test allowed and denied requests and sign-ins.
Deploy an Azure Static Web App with Microsoft Entra SSO
Deploy an Azure Static Web App with tenant-specific Microsoft Entra sign-in, protected routes and separate application and Azure administration permissions.