How does Pure-ftpd configure multiple users, and user A has upload and download permissions, while user B only has download permissions?

how does Pure-ftpd configure multiple users, and user A has the permission to upload and download, and user B only has permission to download?

Google has passed and no solution has been found.

has no one ever encountered this problem?

Ftp
Jul.10,2022

finally solved it on its own.
Pure-ftpd does not have this feature and needs to cooperate with system users.

create a system user group: groupadd ftpgroup

create a system user (and do not create a user directory under home):

(readable and writable) useradd ftpadmin-g ftpgroup-d / dev/null-s / sbin/nologin

(readable) useradd ftpuser-g ftpgroup-d / dev/null-s / sbin/nologin

create a Pure-ftpd user and specify a directory:

pure-pw useradd admin -u ftpadmin -g ftpadmingroup -d /data/ftpserver

pure-pw useradd user -u ftpuser -g ftpadmingroup -d /data/ftpserver

modify the FTP folder directory
chmod 755 / data/ftpserver

remember, finally must refresh the database: pure-pw mkdb

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