hi, thanks for your reply.
I will try to do it.
Setting up certificate for a hostname: mactt.hkpower.com
2023/11/17 09:29:43 [INFO] [server-103-1-14-227.da.direct] acme: Obtaining SAN certificate
2023/11/17 09:29:44 [INFO] [server-103-1-14-227.da.direct] AuthURL:
https://acme-v02.api.letsencrypt.org/acme/authz-v3/284559202946
2023/11/17 09:29:44 [INFO] [server-103-1-14-227.da.direct] acme: Could not find solver for: tls-alpn-01
2023/11/17 09:29:44 [INFO] [server-103-1-14-227.da.direct] acme: use http-01 solver
2023/11/17 09:29:44 [INFO] [server-103-1-14-227.da.direct] acme: Trying to solve HTTP-01
2023/11/17 09:30:00 [INFO] [server-103-1-14-227.da.direct] The server validated our request
2023/11/17 09:30:00 [INFO] [server-103-1-14-227.da.direct] acme: Validations succeeded; requesting certificates
2023/11/17 09:30:08 [INFO] [server-103-1-14-227.da.direct] Server responded with a certificate for the preferred certificate chains "ISRG Root X1".
Certificate for server-103-1-14-227.da.direct has been created successfully!
DirectAdmin certificate has been setup.
Setting up cert for Exim...
2023/11/17 09:30:09 info executing task task=action=exim&value=restart
2023/11/17 09:30:10 info executing task task=action=dovecot&value=restart
Setting up cert for WWW server...
2023/11/17 09:30:11 info executing task task=action=httpd&affect_php_fpm=no&value=reload
Setting up cert for FTP server...
2023/11/17 09:30:13 info executing task task=action=pure-ftpd&value=restart
2023/11/17 09:30:15 info executing task task=action=directadmin&value=restart
[root@mactt ~]# hostname
mactt.hkpower.com
Where I can change the hostname to mactt.hkpower.com (within directadmin?)