Several extra minutes in each download of the updates when using CB, thanks to forcing IPv6 in the resolution of the domain in a server which does not have IPv6 configured and it is specified in the DA configuration that IPv6 is not used.
Bash:
Downloading curl-7.71.1.tar.gz...
--2020-08-24 03:39:46-- https://files-fr.directadmin.com/services/custombuild/curl-7.71.1.tar.gz
Resolving files-fr.directadmin.com (files-fr.directadmin.com)... 2001:41d0:8:4a71::5, 92.222.207.19
Connecting to files-fr.directadmin.com (files-fr.directadmin.com)|2001:41d0:8:4a71::5|:443... failed: Connection timed out.
Connecting to files-fr.directadmin.com (files-fr.directadmin.com)|92.222.207.19|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 4033674 (3.8M) [application/octet-stream]
Saving to: '/usr/local/directadmin/custombuild/curl-7.71.1.tar.gz'
100%[===================================================================================================================================================>] 4,033,674 --.-K/s in 0.1s
2020-08-24 03:41:53 (27.2 MB/s) - '/usr/local/directadmin/custombuild/curl-7.71.1.tar.gz' saved [4033674/4033674]
Downloading clamav-0.102.4.tar.gz...
--2020-08-24 03:41:53-- https://files-fr.directadmin.com/services/custombuild/clamav-0.102.4.tar.gz
Resolving files-fr.directadmin.com (files-fr.directadmin.com)... 2001:41d0:8:4a71::5, 92.222.207.19
Connecting to files-fr.directadmin.com (files-fr.directadmin.com)|2001:41d0:8:4a71::5|:443... failed: Connection timed out.
Connecting to files-fr.directadmin.com (files-fr.directadmin.com)|92.222.207.19|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 13234444 (13M) [application/octet-stream]
Saving to: '/usr/local/directadmin/custombuild/clamav-0.102.4.tar.gz'
100%[===================================================================================================================================================>] 13,234,444 54.2MB/s in 0.2s
2020-08-24 03:44:01 (54.2 MB/s) - '/usr/local/directadmin/custombuild/clamav-0.102.4.tar.gz' saved [13234444/13234444]
Downloading php-7.3.21.tar.gz...
--2020-08-24 03:44:01-- https://files-fr.directadmin.com/services/custombuild/php-7.3.21.tar.gz
Resolving files-fr.directadmin.com (files-fr.directadmin.com)... 2001:41d0:8:4a71::5, 92.222.207.19
Connecting to files-fr.directadmin.com (files-fr.directadmin.com)|2001:41d0:8:4a71::5|:443... failed: Connection timed out.
Connecting to files-fr.directadmin.com (files-fr.directadmin.com)|92.222.207.19|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 19652697 (19M) [application/octet-stream]
Saving to: '/usr/local/directadmin/custombuild/php-7.3.21.tar.gz'
100%[===================================================================================================================================================>] 19,652,697 41.9MB/s in 0.4s
2020-08-24 03:46:09 (41.9 MB/s) - '/usr/local/directadmin/custombuild/php-7.3.21.tar.gz' saved [19652697/19652697]
...