Saltmarsh Outfitters · Network Ops

Name Down: Repair a Missing DNS Host Record

N10-007 · 1.8 N10-007 · 5.1 N10-007 · 5.2 APNET · 3.6 APNET · 4.3
You're on the evening network shift. A developer in the Pier 4 office pings you on chat: "The internal storefront site won't open by name — it worked this morning." You administer ns-willow, the primary DNS server for the saltmarsh.lan zone. Work the problem from the bottom up: prove whether the host is reachable at all, isolate where it breaks, fix the zone, then verify by name.
Affected service: storefront.saltmarsh.lan · expected address 10.40.12.86 · resolver ns-willow (10.40.12.10)
Ops terminal — ns-willow
netadmin@ns-willow:~$
DNS zone manager
Forward lookup zone  saltmarsh.lan  ·  ns-willow (primary)
NameTypeValue

Add a record

.saltmarsh.lan is appended automatically

Lab tasks

Work bottom-up. Each step checks itself as the simulation state changes.

    Check your reasoning

    Answer as you go. Selections are checked immediately.

    A pseudonym only — your instructor maps it to you separately.
    Progress: 0 / 7