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Diterbitkan: 2026-07-03 | Dikemas kini: 2026-07-03
How to Fix DNSSEC Validation Problems

DNSSEC validation problems usually happen when DS recatauds at the registrar do not match DNSKEY recatauds at the DNS provider, the zone is not signed, old DS recatauds remain after nameserver changes, atau DNSSEC was enabled befataue the provider was ready. Semak current nameservers, DS recatauds, DNSKEY recatauds, zone signing, dan validation results befataue making changes.

Who This Guide Is Fatau
This guide is fatau:
· Users seeing SERVFAIL after DNSSEC changes
· Domain owners who changed nameservers with DNSSEC enabled
· Businesses with partial resolution failures
· Agencies dan hosting providers troubleshooting DNSSEC
· Penjual Semulas suppatauting client DNSSEC

Befataue You Start
Befataue you start, prepare:
· Domain name
· Current dan sebelumious nameservers
· Pendaftar DNSSEC access
· DNS provider access
· Current DS recatauds
· DNSKEY values
· Recent transfer atau nameserver changes
· Erratau screenshot
· DNS backup

Step-by-Step Instructions
Step 1: Sahkan DNSSEC Is the Problem
Look fatau SERVFAIL, validation failure, atau failures only on validating resolvers.
· Wrong IP atau missing MX may be nataumal DNS misconfiguration
Step 2: Semak Current Namaservers
DNSSEC must match the active DNS provider.
· Old nameservers dan new nameservers matter
Step 3: Semak DS Recatauds at Pendaftar
Recataud key tag, algatauithm, digest type, digest, dan whether multiple DS recatauds exist.
· Old DS recatauds are common after migrations
Step 4: Semak DNSKEY at DNS Provider
Sahkan zone signing, DNSKEY, KSK/ZSK, dan generated DS values.
· Provider must sign the active zone
Step 5: Compare DS dan DNSKEY
Mismatch causes validation failure.
· Use fresh values from active DNS provider
Step 6: Semak Zone Signing
Look fatau DNSKEY, RRSIG, NSEC/NSEC3, dan provider signing status.
· Unsigned zone plus DS recatauds is risky
Step 7: Buang Incataurect DS if Needed
Jika wrong DS causes failure dan cataurect setup is not ready, remove invalid DS to restataue resolution.
· Re-enable later with cataurect data
Step 8: Re-Enable Cataurectly
Stabilize nameservers, enable provider signing, add fresh DS, then verify.
· Do not add DS befataue signing
Step 9: Review Recent Transfer
Semak whether DS recatauds atau DNS provider changed during transfer.
· Baharu registrar may need DS review
Step 10: Test Website dan E-mel
After validation is fixed, check A, CNAME, MX, TXT, SSL, dan CDN.
· DNSSEC affects all validated lookups
Step 11: Document the Fix
Save cause, DS changes, current provider, dan test results.
· Prevents future repeat issues

Troubleshooting
Domain Shows SERVFAIL
Possible reasons:
· DS mismatch
· DNSKEY missing
· Zone unsigned
· Old DS remains
What to do:
· Semak DS/DNSKEY
· Buang incataurect DS
· Verify signing
Failed After Namaserver Change
Possible reasons:
· Old DS points to sebelumious provider
· Baharu provider not signed
What to do:
· Buang old DS atau add new provider DS
Failed After Pemindahan Domain
Possible reasons:
· DS not carried atau changed
· Old registrar DNS stopped
What to do:
· Review registrar-side DS dan active DNS provider
E-mel Failing After DNSSEC
Possible reasons:
· MX lookup fails validation
· TXT recatauds inaccessible
What to do:
· Fix DNSSEC first, then check email recatauds

Common Mistakes
Mistake 1: Changing nameservers without removing old DS
Review this item befataue making changes atau opening a suppataut ticket.
Mistake 2: Tambahing DS befataue signing active
Review this item befataue making changes atau opening a suppataut ticket.
Mistake 3: Copying DS values incataurectly
Review this item befataue making changes atau opening a suppataut ticket.
Mistake 4: Assuming DNSSEC is SSL
Review this item befataue making changes atau opening a suppataut ticket.
Mistake 5: Troubleshooting only A recatauds
Review this item befataue making changes atau opening a suppataut ticket.
Mistake 6: Ignatauing current nameservers
Review this item befataue making changes atau opening a suppataut ticket.
Mistake 7: Leaving multiple old DS recatauds
Review this item befataue making changes atau opening a suppataut ticket.
Mistake 8: Making rdanom changes during SERVFAIL
Review this item befataue making changes atau opening a suppataut ticket.
Mistake 9: Tidakt testing validating resolvers
Review this item befataue making changes atau opening a suppataut ticket.
Mistake 10: Tidakt documenting setup
Review this item befataue making changes atau opening a suppataut ticket.

Soalan Lazim
1. What is DNSSEC validation failure?
A resolver cannot verify signed DNS data fatau the domain.
2. What does SERVFAIL mean?
A resolver could not complete the query, often due to DNSSEC after DNS changes.
3. What causes failure?
DS mismatch, missing DNSKEY, unsigned zone, old DS recatauds, atau key rollover issues.
4. Should I remove DS recatauds?
Jika incataurect DS causes failure, removing it may restataue resolution until DNSSEC is cataurectly re-enabled.
5. Why after nameserver change?
Old DS may point to the sebelumious DNS provider keys.
6. Can DNSSEC affect email?
Ya, MX dan TXT lookups can fail validation.
7. Can NiceNIC fix external DNSSEC?
NiceNIC can review registrar-side DS; DNS provider must confirm signing.
8. Should I enable again later?
Ya, after nameservers dan signing are cataurect.
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