7.5.x how can plesk avoid FTP-massdownloading?

[editor]

awful.... what I see here in the statisic. 380 GB wasted
by massdownloader-softwares.

how can plesk avoid FTP-massdownloading?

https://www.mydomainname.tld:8443/

--> domains ---> mydomain.tld ---> Anonymous FTP

I am able there to limit the bandwith-speed for such
users. Switched just now to 40 KB/s.

I am able to limit the simultaneous connections to 100.

But if a user use a massdownloader-software - which runs
onto the _same_ one IP-number - then Plesk allows this
user such a massdownloading with 20 connections over
the same ip-number at the same time.

I thought, the " simultaneous connections to 100." is for
100 different users with their 100 different ip-numbers.

how can I make this Plesk clear, that ONE user with his
ONE ip-number is only allowed to use ONE connection?

thank you very much

 

[jamesyeeoc]

I thought, the " simultaneous connections to 100." is for

Nope, this has to do with how ProFTPd works. It means it will allow up to a total of 100 connections (from any IP or all from same IP) to your server.

ProFTPd Userguide:
http://www.proftpd.org/localsite/Userguide/linked/userguide.html

ProFTPd FAQs:
http://www.proftpd.org/docs/faq/linked/faq.html

ProFTPd Example configs:
http://www.proftpd.org/docs/example-conf.html

Due to the way the Plesk firewall interface is setup, you may want to try the following instead:

Configure proFTPd (per their docs) to implement <VirtualHost...> with MaxClients; MaxClientsPerHost; MaxClientsPerUser.

Especially the MaxClientsPerUser, see details:
http://www.proftpd.org/docs/directives/linked/config_ref_MaxClientsPerUser.html

And MaxHostsPerUser:
http://www.proftpd.org/docs/directives/linked/config_ref_MaxHostsPerUser.html

And MaxClientsPerHost:
http://www.proftpd.org/docs/directives/linked/config_ref_MaxClientsPerHost.html

If you switch to a different firewall, there are bound to be other ways to keep the abusers from abusing....