Cloud Architecture & Migration

A legacy operating system may not be supported by the target cloud service or current security tooling. A simple server copy can preserve unsupported components while changing drivers, network behavior, licensing, or boot configuration. What to check Inventory application dependencies, kernel and driver requirements, licensing terms, network protocols,...

Moving an application while leaving its shared file server behind can introduce latency, permission mismatches, and a single cross-environment dependency. Moving the files without understanding locks or path assumptions can also corrupt application behavior. What to investigate Map every process that reads or writes the share, including scheduled jobs...

A fixed maintenance window limits how long an application can be unavailable during migration. Data copying, DNS changes, dependency checks, and rollback can take longer than expected if they are first attempted during the outage. What to check Measure data volume and change rate, identify final synchronization steps, test the full runbook, and map...

A cloud application may depend on a backup product for snapshots, database copies, or file recovery. Moving the application without its backup configuration can leave a recovery gap even when the service itself is available. What to check Inventory backup agents, service identities, network access, storage destinations, encryption keys, retention...

Partners may allow a service connection only from a known outbound IP address. A cloud migration can change the egress path even when the application hostname and inbound traffic stay the same. What to check Map outbound destinations and allowlists, identify NAT gateways and regional egress, and confirm which background jobs use the fixed address....

A vendor may accept connections only from approved source addresses. Cloud migration can change egress IPs for web servers, workers, and scheduled jobs, causing only some application functions to fail after cutover. What to check List each outbound vendor connection and its source workload, region, NAT path, and currently allowed IP. Review logs for...

Scheduled file transfers often connect an application to suppliers, finance teams, or legacy systems. A migration can change credentials, source addresses, folder paths, file timing, and network routes without affecting the main website. What to check Inventory transfer jobs, partner endpoints, authentication keys, schedules, file naming rules,...

An application may depend on an external identity service for sign-in, role claims, or automated account provisioning. Migrating its compute environment can change callback URLs, outbound access, token validation, or secret locations. What to check Inventory redirect and logout URLs, service credentials, signing keys, allowed network paths, claim...