17
DNS
17 BADKEY
Key not recognized. The TSIG key name in the message is not configured on the server.
Когда вы видите этот код
Your TSIG-signed query or update references a key name that the server does not have in its keyring, so it cannot verify the signature.
Как исправить
Ensure the TSIG key name matches exactly (case-sensitive) on both client and server. Add the missing key to the server's configuration if it is a new key.
Спецификация
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Руководства
HTTP Request Lifecycle: From URL to Response
HTTP Fundamentals
Step-by-Step DNS Troubleshooting with dig and nslookup
Debugging & Troubleshooting
Improving Email Deliverability: SPF, DKIM, and DMARC Setup
Email Delivery
DNS Response Codes (RCODEs) Explained
DNS & Networking
DNS TTL: How to Set TTL Values and Avoid Propagation Delays
DNS & Networking
DNS Propagation: Why Changes Take Time
DNS & Networking
DNSSEC Implementation Guide
DNS & Networking
DNS-Based Failover and High Availability
DNS & Networking
DNS Record Types Explained: A, AAAA, CNAME, MX, TXT, and Beyond
DNS & Networking
DNS over HTTPS (DoH) and DNS over TLS (DoT): Encrypted DNS Explained
DNS & Networking
Essential Network Debugging Tools: ping, traceroute, mtr, and tcpdump
DNS & Networking
Resource Hints: Preload, Prefetch, Preconnect, and DNS-Prefetch
Performance & Optimization
RFC 9114: HTTP/3 Protocol Deep Dive
Protocol Deep Dives
RFC 3261: SIP Protocol Deep Dive
Protocol Deep Dives
QUIC Protocol: The Transport Layer Behind HTTP/3
Protocol Deep Dives
Migrating from TLS 1.2 to TLS 1.3: Configuration and Compatibility
Migration & Upgrades
Secret Management for API Keys, Tokens, and Certificates
Production Infrastructure
Глоссарий
TCP/IP
Port Number
Latency
Timeout
Firewall
DNS over HTTPS (DoH)
IPv6
Subnet (Subnetwork)
MTU (Maximum Transmission Unit)
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CDN (Content Delivery Network)
Request-Response Model
RFC (Request for Comments)
IANA (Internet Assigned Numbers Authority)
Wire Format
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Connectionless
Text vs Binary Protocol
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Email Deliverability
MTA (Mail Transfer Agent)
ARC (Authenticated Received Chain)
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Service Discovery
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