Cant define whitelist

[yubiuser]

Have you searched the forum for the issue and nginx?

Does this help:

Unable to edit white/blacklist entries

Finally got it to work! I went through each directory for pihole and looked at the ownership/group of each file. Here's what I found: The ownership for /var/www/html/admin/scripts was www-data: drwxr-xr-x 4 www-data www-data 4096 Mar 7 14:09 scripts Within the scripts directory, the ownership for /var/www/html/admin/scripts/pi-hole was also www-data: drwxr-xr-x 4 www-data www-data 4096 Mar 7 14:09 pi-hole As well as the directories inside js and php drwxr-xr-x 2 www-data www-data 4096…

Error message: "Attempt to write a readonly database"

Okay, so it seems you are both running non-standard configurations. Both times, your web server user is lacking group membership in the group pihole. Not sure which user your web servers are running as (typical for lighttpd is www-data). Try to find out which is the correct web server user and add it to group pihole. Thereafter, restart your web server and try again. If this is not sufficient to communicate the new group membership (it should be), you might have to restart your system.