DNS 6 YXDOMAIN vs 19 BADMODE
Both DNS 6 (YXDOMAIN) and 19 (BADMODE) belong to the DNS Response Codes (RCODEs) category. 6 indicates that name Exists when it should not. Used in dynamic updates to indicate a name that should not exist already has records. Meanwhile, 19 means that bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
Deskripsi
Name Exists when it should not. Used in dynamic updates to indicate a name that should not exist already has records.
Ketika Anda Melihatnya
A DNS UPDATE prerequisite check failed because the domain name already exists when the update expected it to be absent.
Cara Memperbaiki
Review your dynamic update prerequisites. If you expect to create a new name, remove the existing records first or change the prerequisite to allow existing names.
Deskripsi
Bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
Ketika Anda Melihatnya
Your client attempted a TKEY key exchange using a mode (e.g., Diffie-Hellman, GSS-API) that the server does not support or has not been configured for.
Cara Memperbaiki
Check which TKEY modes the server supports and configure your client to use a compatible mode. GSS-TSIG (mode 3) is the most widely deployed.
Perbedaan Utama
DNS 6: Name Exists when it should not. Used in dynamic updates to indicate a name that should not exist already has records.
DNS 19: Bad TKEY Mode. The TKEY mode field contains a value not supported by the server.
You encounter 6 when a DNS UPDATE prerequisite check failed because the domain name already exists when the update expected it to be absent.
You encounter 19 when your client attempted a TKEY key exchange using a mode (e.g., Diffie-Hellman, GSS-API) that the server does not support or has not been configured for.
Kapan Menggunakan Yang Mana
For 6 (YXDOMAIN): Review your dynamic update prerequisites. If you expect to create a new name, remove the existing records first or change the prerequisite to allow existing names. For 19 (BADMODE): Check which TKEY modes the server supports and configure your client to use a compatible mode. GSS-TSIG (mode 3) is the most widely deployed.