Wiki source code of How to use Domain Name instead of IP address in Server Address
Last modified by Xiaoling on 2023/04/21 11:59
Show last authors
| author | version | line-number | content |
|---|---|---|---|
| 1 | ((( | ||
| 2 | (% style="color:blue" %)**Note when using MQTT:** | ||
| 3 | ))) | ||
| 4 | |||
| 5 | ((( | ||
| 6 | **1）(% style="color:#037691" %)AT+CLIENT (%%)**cannot be set to NULL | ||
| 7 | ))) | ||
| 8 | |||
| 9 | ((( | ||
| 10 | **2) (% style="color:#037691" %)AT+SERVADDR(%%)** length should not exceed 21 bytes | ||
| 11 | ))) | ||
| 12 | |||
| 13 | ((( | ||
| 14 | **3)** It is not recommended to use a domain name, as it will take a long time for the MQTT service to resolve the domain name for the first time and increase power consumption. It is recommended to use IP instead of domain name. | ||
| 15 | |||
| 16 | |||
| 17 | ))) | ||
| 18 | |||
| 19 | ((( | ||
| 20 | If you don't know the domain name IP, you can enter the command (% style="color:#037691" %)**AT+QNDS **(%%)to resolve the domain name when it is not working (this process may take a long time). | ||
| 21 | |||
| 22 | |||
| 23 | (% style="color:blue" %)**Example:** | ||
| 24 | |||
| 25 | [[image:image-20220722171355-1.png]] | ||
| 26 | ))) | ||
| 27 | |||
| 28 |