You appear to have a conflict with Apache, an unsupported web server.
*** [ DIAGNOSING ]: Ports in use
*:3128 squid (IPv6)
*:22 sshd (IPv4)
*:22 sshd (IPv6)
*:81 apache2 (IPv6)
*:81 apache2 (IPv6)
*:81 apache2 (IPv6)
[53] is in use by pihole-FTL
[53] is in use by pihole-FTL
[4711] is in use by pihole-FTL
[4711] is in use by pihole-FTL
Please look in our Community Help category under Apache. There are a number of posts from users that have made this work.
thank you very much,
since I had never set it up but had taken over a copy, I had relatively little idea. but it was not so difficult and I now look at all the settings.
what could have caused it to change from one day to the next?
actually i had not changed anything and the two services should have been listening to port 80 the whole time.