check out the verification of the cert chain. it works for me with a new build of 20.04, so it might be that you need to add or update your truststore.

openssl s_client -connect www.gutenberg.org:443 < /dev/null | openssl x509 -text -noout

up there at the top, this is what it looks like when it works

depth=2 C = US, ST = New Jersey, L = Jersey City, O = The USERTRUST Network, CN = USERTrust RSA Certification Authority
verify return:1
depth=1 C = US, ST = VA, L = Herndon, O = Network Solutions L.L.C., CN = Network Solutions OV Server CA 2
verify return:1
depth=0 C = US, ST = Utah, L = Salt Lake City, O = Project Gutenberg Literary Archive Foundation, CN = *.gutenberg.org
verify return:1
DONE

I can see that i have that usertrust network cert in /etc/ssl/certs, so all is good. if i had to add one i'd have then run update-ca-certicates.

On Fri, Sep 16, 2022 at 2:17 PM Jim via PLUG-discuss <plug-discuss@lists.phxlinux.org> wrote:

This has been bugging me for a while, but today it's annoying me to the point I want to fix it. Wget gives me an error whenever I try to use it. I have no problem getting files using a web browser. Here's an example. Using firefox I was able to download the file, but this can be a pain in the butt when I'm trying to add a repository. I have Ubuntu 20.04 installed.

$ wget https://www.gutenberg.org/ebooks/68992.epub.images
--2022-09-16 14:08:02-- https://www.gutenberg.org/ebooks/68992.epub.images
Resolving www.gutenberg.org (www.gutenberg.org)... 152.19.134.47, 2610:28:3090:3000:0:bad:cafe:47
Connecting to www.gutenberg.org (www.gutenberg.org)|152.19.134.47|:443... connected.
ERROR: cannot verify www.gutenberg.org's certificate, issued by ‘CN=Network Solutions OV Server CA 2
,O=Network Solutions L.L.C.,L=Herndon,ST=VA,C=US’:
Self-signed certificate encountered.
To connect to www.gutenberg.org insecurely, use `--no-check-certificate'.

Any idea how to fix this? thanks

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