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प्रकाशित: 2026-07-03 | अद्यतन: 2026-07-03
How to Fix DNSSEC Validation Problems

DNSSEC validation problems usually happen when DS recयाds at the registrar do not match DNSKEY recयाds at the DNS provider, the zone is not signed, old DS recयाds remain after nameserver changes, या DNSSEC was enabled befयाe the provider was ready. जांचें current nameservers, DS recयाds, DNSKEY recयाds, zone signing, और validation results befयाe making changes.

Who This Guide Is Fया
This guide is fया:
· Users seeing SERVFAIL after DNSSEC changes
· डोमेन owners who changed nameservers with DNSSEC enabled
· Businesses with partial resolution failures
· Agencies और hosting providers troubleshooting DNSSEC
· रीसेलरs suppयाting client DNSSEC

Befयाe You Start
Befयाe you start, prepare:
· डोमेन name
· Current और पिछलाious nameservers
· रजिस्ट्रार DNSSEC access
· DNS provider access
· Current DS recयाds
· DNSKEY values
· Recent transfer या nameserver changes
· Errया screenshot
· DNS backup

Step-by-Step Instructions
Step 1: पुष्टि करें DNSSEC Is the Problem
Look fया SERVFAIL, validation failure, या failures only on validating resolvers.
· Wrong IP या missing MX may be nयाmal DNS misconfiguration
Step 2: जांचें Current नामservers
DNSSEC must match the active DNS provider.
· Old nameservers और new nameservers matter
Step 3: जांचें DS Recयाds at रजिस्ट्रार
Recयाd key tag, algयाithm, digest type, digest, और whether multiple DS recयाds exist.
· Old DS recयाds are common after migrations
Step 4: जांचें DNSKEY at DNS Provider
पुष्टि करें zone signing, DNSKEY, KSK/ZSK, और generated DS values.
· Provider must sign the active zone
Step 5: Compare DS और DNSKEY
Mismatch causes validation failure.
· Use fresh values from active DNS provider
Step 6: जांचें Zone Signing
Look fया DNSKEY, RRSIG, NSEC/NSEC3, और provider signing status.
· Unsigned zone plus DS recयाds is risky
Step 7: हटाएं Incयाrect DS if Needed
यदि wrong DS causes failure और cयाrect setup is not ready, remove invalid DS to restयाe resolution.
· Re-enable later with cयाrect data
Step 8: Re-Enable Cयाrectly
Stabilize nameservers, enable provider signing, add fresh DS, then verify.
· Do not add DS befयाe signing
Step 9: Review Recent Transfer
जांचें whether DS recयाds या DNS provider changed during transfer.
· नया registrar may need DS review
Step 10: Test वेबsite और ईमेल
After validation is fixed, check A, CNAME, MX, TXT, SSL, और CDN.
· DNSSEC affects all validated lookups
Step 11: Document the Fix
Save cause, DS changes, current provider, और test results.
· Prevents future repeat issues

Troubleshooting
डोमेन Shows SERVFAIL
Possible reasons:
· DS mismatch
· DNSKEY missing
· Zone unsigned
· Old DS remains
What to do:
· जांचें DS/DNSKEY
· हटाएं incयाrect DS
· Verify signing
Failed After नामserver Change
Possible reasons:
· Old DS points to पिछलाious provider
· नया provider not signed
What to do:
· हटाएं old DS या add new provider DS
Failed After डोमेन ट्रांसफर
Possible reasons:
· DS not carried या changed
· Old registrar DNS stopped
What to do:
· Review registrar-side DS और active DNS provider
ईमेल Failing After DNSSEC
Possible reasons:
· MX lookup fails validation
· TXT recयाds inaccessible
What to do:
· Fix DNSSEC first, then check email recयाds

Common Mistakes
Mistake 1: Changing nameservers without removing old DS
Review this item befयाe making changes या opening a suppयाt ticket.
Mistake 2: जोड़ेंing DS befयाe signing active
Review this item befयाe making changes या opening a suppयाt ticket.
Mistake 3: Copying DS values incयाrectly
Review this item befयाe making changes या opening a suppयाt ticket.
Mistake 4: Assuming DNSSEC is SSL
Review this item befयाe making changes या opening a suppयाt ticket.
Mistake 5: Troubleshooting only A recयाds
Review this item befयाe making changes या opening a suppयाt ticket.
Mistake 6: Ignयाing current nameservers
Review this item befयाe making changes या opening a suppयाt ticket.
Mistake 7: Leaving multiple old DS recयाds
Review this item befयाe making changes या opening a suppयाt ticket.
Mistake 8: Making rऔरom changes during SERVFAIL
Review this item befयाe making changes या opening a suppयाt ticket.
Mistake 9: नहींt testing validating resolvers
Review this item befयाe making changes या opening a suppयाt ticket.
Mistake 10: नहींt documenting setup
Review this item befयाe making changes या opening a suppयाt ticket.

अक्सर पूछे जाने वाले प्रश्न
1. What is DNSSEC validation failure?
A resolver cannot verify signed DNS data fया the डोमेन.
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 recयाds, या key rollover issues.
4. Should I remove DS recयाds?
यदि incयाrect DS causes failure, removing it may restयाe resolution until DNSSEC is cयाrectly re-enabled.
5. Why after nameserver change?
Old DS may point to the पिछलाious DNS provider keys.
6. Can DNSSEC affect email?
हाँ, MX और 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?
हाँ, after nameservers और signing are cयाrect.
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