I want to run apt-cacher-ng on port 80 for a dedicated caching server.
After configuring via debconf to use that port, and restarting, nothing
is listening at localhost:80. I see the following in syslog:
2023-02-02T00:10:04.728949-05:00 image-debian64 systemd[1]: Starting apt-cacher-ng.service - Apt-Cacher NG software download proxy...
2023-02-02T00:10:04.740737-05:00 image-debian64 apt-cacher-ng[668]: Couldn't bind socket: Permission denied
2023-02-02T00:10:04.740858-05:00 image-debian64 apt-cacher-ng[668]: Couldn't bind socket: Permission denied
2023-02-02T00:10:04.743750-05:00 image-debian64 systemd[1]: Started apt-cacher-ng.service - Apt-Cacher NG software download proxy.
If this is a limitation of the current package, then it should be noted
in the documentation and debconf prompt.