Dns.blocking.mode does not apply

Every time I try to apply this setting the webpage would just go back to the logscreen. When I go back to check if it's been applied it's always set to NULL.

Is this a known issue? Can anyone else reproduce it?

I am using Docker ( with this image: sha256:a75a88c6372c3ac56ce2ffe9f2c177457e1d3c38d438bcf40513f58aba7ec362).

Thanks for your report. I was able to reproduce it. The issue happens only with NXDOMAIN and IP-NODATA-AAAA, all others work.

The reason for this is that the strings used in internally by FTL deviated from the ones offered here on the Settings page. A code change in FTL ensures this cannot happen. The fix furthermore prevents the settings page from logging you out when you don't change the password or TOTP secret. There was a small glitch which made FTL think it'd to invalidate all API sessions due to a password change even when there was none.