Replacing ad blocks via squid?

Question

Squid

Through squid, you can filter and remove advertising banners, how can you implement not removing, but replacing with the banners that we need? This will be used for the Internet provider and exclusively for the clients of this provider. And will the subscriber have authentication if there is a squid server at the entrance to the highway?

Answer 1

Write an external handler - and you will have a replacement. And authentication will be, as you set it up - set it up to be - and it will be :)