There appeared to be a gotcha which I forgot to mention, while I hadn't
run afoul of it back at my two original attempts; it can make or break
a suck-feed attempt on a brand-new INN2 setup.

So following is an addition to the recipe; with quoted parts to show where
the addition was supposed to be inserted into...

%<-----

On Fri, 25 Sep 2020, xwindows wrote:

## 1. The NNTP preconditions of suck-feed at the time I ran it were: ##

- I ran `suck` from inside tilde.club, and instructing it to feed
the newspool to `localhost`.
- I pulled the NNTP feed from cosmic.voyage:119.
- tilde.club accepts NNTP `IHAVE` push command from `localhost`
without authentication.

- tilde.club's NNTP server had an incoming-article timestamp acceptance
window that covered the date of oldest article I was trying to push in.

(~deepend originally set it to 365-days at the time I attempted the
first suck-feeding; but with 1-year worth of article to push in
back then, it was so marginal that I had to test pushing-in
the oldest article manually via a contraption of shell script,
`sed`, and Netcat; just to see if INN2 would actually accept the article)

You can configure this in `inn.conf` file inside INN2's $pathetc directory
(`/etc/news` under Fedora 32), by changing `artcutoff` configuration value
to the desired number of backdated days to allow, then restart INNd.
(When you're going to suck-feed, I recommend changing it to `0`
to always-allow limitless backdating push, at least until you finished
suck-feeding the articles; then change it back later,
and restart INNd again)

On Fri, 25 Sep 2020, xwindows wrote:

- All the newsgroup were created *before* the date of oldest article
I was trying to feed it. (*important*, but with workaround,
see the last heading of this article)

%<-----

Cheers for Usenet,
~xwindows
--- Synchronet 3.18b-Linux NewsLink 1.113