I am trying to find specific packages that were available in old releases of Ubuntu, but have been removed from current ones.
I can download images of all CDs the old releases had (http://old-releases.ubuntu.com/), but if I cannot download the packages that were available for them, while they existed (https://packages.ubuntu.com/ or something similar, another subdomain, …), then it is almost pointless to want those images.
The funny detail is that https://packages.ubuntu.com/ mentions http://old-releases.ubuntu.com/ as the place for old release things. And since it is a page to search for packages, something basic seems to be missing here.
So, how do I find the packages for the previous releases, the one that are not in packages.ubuntu.com anymore?
I found a so-so related question, but it is not the same: