On 30/08/20 14:06, Caveman Al Toraboran wrote: > you know there is this almost neat concept called > url? > > rumours say that urls can identify various web > applications, ranging from websites, rss, games, > video, and, guess what? mails. all over > http/https/h2 over same tcp 80/443. hard to > believe, but this magic is known since early > 1990s.
Have you looked at urls lately? http:/example.org/blah/blah https:/example.org/foo/bar git:/github.com/my/wonderful/project smb:/mypc/username/documents The first bit of the url is the protocol - guess what - it explicitly chooses between http / hhtps / git / whatever. It runs above tcp/udp, not tcp80/443. (I've never seen an smtp:/ or imap:/ url, but I guess they could easily be formulated.) Cheers, Wol