For all servers on Android, like dlna/samba/ftp/proxy servers etc... I use an app called Servers Ultimate Pro (there is also a free version, both versions available on Playstore) with the various server packs addons.I can not believe it either. But it's the modem crap that the service provider gave me (u.u).
I did not know that I could with android, I will investigate a little to see if I can do it.
Thanks for your answers
It does everything I need.
In a proxy server, you can add rules to block ips or urls.
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