How can I subscribe to
comp.lang.c using Mozilla Thunderbird?
I do not understand such newsgroups much (I have no idea why they do not have a unique server address).
What should the correct Server Settings look like?
You would need to connect to an NNTP server before you can subscribe to the
Next, once you have a NNTP server name, enter that name for Server Name (where the screenshot now erroneously shows the group name
Finally, Thunderbird will show you a list of all groups, where you can select the group(s) you want.
Otherwise you could use Google Groups in your browser.
Get a news server. Try http://www.elfqrin.com/hacklab/pages/nntpserv.php for some free ones. Add one as your nntp server.