Block Cloudflare 1.1.1.1 DoH with the NXProxy Android Agent?

[ICS]

Is there a way to configure the NXProxy Android app to block access to Cloudflare 1.1.1.1 etc. DoH? Chrome on Android comes with it as a preconfigured option and if engaged it looks like it bypasses content filtering completely.

[ICS]

Long-term, it would be nice if the app could be configured with an IP address blacklist, honestly.

[support200]

Can't block IPs. NxProxy is also a DNS server. However, Chrome uses a domain to access DoH server. And its first contact should be blocked by NxProxy as NxFilter blocks DoH server domains. Maybe it uses other ways to resolve its DoH server domain or it already knows it. Or just from its cache? If it's from cache, it should be expired.

We will see how those DoH bypassing works with NxProxy first and then talk to you.

[support200]

Another approach is that you can block DoH by GPO if you use AD I guess.

[support200]

Try to block 'chrome.cloudflare-dns.com' on Whitelist with admin_block flag. And restart your NxProxy and Chrome and see if's blocked.