Cloud Architecture & Migration

A database may allow connections only from known client addresses. A cloud move can change source addresses or connection paths and cause access failures. What to check Identify database allowlists, NAT or private routing, client identity, TLS requirements, and vendor change procedures. Confirm whether staging uses a different route. Recommended next...

A partner may send callbacks only to a registered destination address. A cloud move can change the public endpoint and interrupt incoming events. What to check Identify callback URLs, DNS, TLS certificates, inbound firewall rules, source allowlists, retry behavior, and vendor approval lead times. Check whether callbacks can be queued during the change....

Applications may trust certificates issued by a private authority that is not installed in the destination environment. A migration can therefore break secure service connections. What to check Inventory trust stores, certificate issuance, renewal, mutual TLS dependencies, container images, and certificate ownership. Confirm how clients validate the...

A scheduled feed may depend on source IP allowlists, file formats, credentials, and delivery timing. Moving the receiver without coordinating the sender can cause missed or duplicate imports. What to check Map schedule, sender contact, file naming, authentication, network rules, retry behavior, and checkpointing. Confirm how late or repeated files are...

A cloud move can rely on DNS records managed by another provider or team. Without clear access and change coordination, cutover and rollback can be delayed. What to check Identify authoritative zone ownership, account access, API automation, TTLs, DNSSEC, certificates, and approval lead times. Confirm who can make emergency changes. Recommended next...

A vendor-managed dependency may need downtime or coordinated configuration changes during migration. Missing the vendor’s lead time can extend an outage. What to check Identify vendor contacts, required approvals, maintenance windows, endpoint changes, test access, rollback support, and communication requirements. Recommended next step Include vendor...