OpenWRT - Domain filtering / WhiteList with a web interface. Whether there is a?

Question

linux

Good day!
It was necessary to replace the router, since the one that is on OpenWRT is not flashed, and on the native firmware both WAN ports are only 100 megabits and Load Balance hangs the management on the piece of iron tightly. They found a suitable router, just on OpenWRT, but there is no convenient function for filtering domains in the firewall (Read, white list). I'm attaching a screenshot:
https://habrastorage.org/files/1f1/c90/279/1f1c902...
Maybe someone will tell you something so that in the configs with the proxy / iptables you don’t toil or steer everything with a dns’ nickname (or do you need a convenient web interface for this, such as in the screenshot, with the ability to add a whole address or part of it? (There is a possibility I'm not the one to add hosts to the list, so I can't get away with a simple script) Complete blocking of access is not required, it is enough that users cannot access sites not from the white list _in the browser_. Do not offer a configuration option on each machine, as well as OpenDNS .Thanks
in advance for your advice.

Answer 1

So it is written: Error in line 7 of the devcot configuration /etc/dovecot/dovecot.conf, the line refers to a postfix certificate in /etc/postfix/smtpd.cert, which does not exist. Check for a certificate in /etc/postfix/ and for postfix to work.

Answer 2

There is no standard interface, although it is not a problem to expand luci.
Use the Firewall - Custom Rules tab. in the web interface.
Create a rule, and then "copy-paste".