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Page 155 of the DSE Networks & Infrastructure knowledge center, with source-backed guidance and practical next steps.

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Networks & Infrastructure knowledge center

Guidance for resilient networks, Wi-Fi, firewalls, cabling, power, exposure reduction, and connected-device planning.

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Networks & Infrastructure

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DSE visual briefNetworks & infrastructure

Migrate monitoring to SNMPv3 without losing the alerts operations depend on

SNMPv3 can add authentication, integrity, privacy, and scoped access, but a rushed cutover can silently drop polling or notifications. Migrate by device class, verify manager support, test both directions, and retain rollback.

Published Reviewed 3 min readBy DSE Security Editorial Team
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DSE visual briefNetworks & infrastructure

Practice the restart sequence after facility power returns

Utility power returning does not mean every dependent service is ready. Build and rehearse an authorized restart sequence that validates power quality, facility systems, network, identity, storage, applications, security, and monitoring.

Published Reviewed 3 min readBy DSE Security Editorial Team
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DSE visual briefNetworks & infrastructure

Verify telecom diversity through last-mile paths, power, equipment, and shared facilities

Two provider names do not prove two survivable communications paths. Trace building entrances, conduits, central offices, power, customer equipment, upstream facilities, DNS, routing, support, and failover behavior before calling a design diverse.

Published Reviewed 3 min readBy DSE Security Editorial Team
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Govern Windows DNS scavenging as a deletion change, not routine cleanup

Windows DNS aging can identify stale dynamic records, and scavenging can delete them. Inventory timestamps and registration owners, align intervals with DHCP and client behavior, restrict scavenging servers, pilot one zone, and prove recovery before enabling automation.

Published Reviewed 3 min readBy Gavin Stewart
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DSE visual briefIdentity & cloud

Deploy SMB over QUIC only after identity, port, and fallback testing

SMB over QUIC protects Windows file access with TLS 1.3 over UDP 443, but Windows clients can still prefer TCP and external authentication can fall back to NTLM. Prove transport, identity, certificates, and renewal before production.

Published Reviewed 4 min readBy DSE Security Editorial Team
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DSE visual briefNetworks & infrastructure

Use RPKI route-origin validation without confusing Valid with safe

RPKI lets resource holders authorize which ASN may originate a prefix and lets operators validate BGP origins. It does not validate the full AS path or prove a route is benign. Build careful ROAs, redundant validators, policy, and monitoring.

Published Reviewed 3 min readBy DSE Security Editorial Team
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DSE visual briefNetworks & infrastructure

Design Azure Private Endpoint DNS before the first private link

An approved Azure Private Endpoint can still fail when clients resolve the public address or a private zone returns NXDOMAIN. Design service-specific zones, VNet links, hybrid forwarding, fallback, ownership, and tests before deployment.

Published Reviewed 3 min readBy DSE Security Editorial Team
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