DNS 0 NOERROR vs 20 BADNAME
Both DNS 0 (NOERROR) and 20 (BADNAME) belong to the DNS Response Codes (RCODEs) category. 0 indicates that no error condition. The query completed successfully and the response contains the requested data. Meanwhile, 20 means that duplicate key name. The key name in a TKEY negotiation is already in use or conflicts with an existing key.
Deskripsi
No error condition. The query completed successfully and the response contains the requested data.
Ketika Anda Melihatnya
This is the normal, successful response to any DNS query — the name was resolved and the answer section contains the requested records.
Cara Memperbaiki
No fix needed. RCODE 0 means the DNS lookup succeeded as expected.
Deskripsi
Duplicate key name. The key name in a TKEY negotiation is already in use or conflicts with an existing key.
Ketika Anda Melihatnya
A TKEY key establishment failed because a key with the same name already exists on the server from a previous session that was not properly cleaned up.
Cara Memperbaiki
Use a unique key name for each TKEY session (e.g., append a timestamp or random suffix). Delete stale keys on the server if they are no longer needed.
Perbedaan Utama
DNS 0: No error condition. The query completed successfully and the response contains the requested data.
DNS 20: Duplicate key name. The key name in a TKEY negotiation is already in use or conflicts with an existing key.
You encounter 0 when this is the normal, successful response to any DNS query — the name was resolved and the answer section contains the requested records.
You encounter 20 when a TKEY key establishment failed because a key with the same name already exists on the server from a previous session that was not properly cleaned up.
Kapan Menggunakan Yang Mana
For 0 (NOERROR): No fix needed. RCODE 0 means the DNS lookup succeeded as expected. For 20 (BADNAME): Use a unique key name for each TKEY session (e.g., append a timestamp or random suffix). Delete stale keys on the server if they are no longer needed.