in reply to how can i log into perlmonks with a telnet session to port 80

In other words, you're wondering about HTTP GET requests. 
GET /?node_id=587485 HTTP/1.0
Host: perlmonks.org
Cookie: userpass=you'llhavetofindoutforyourself

[download]
Should work if you aready have a session cookie.

See also this old introduction I once wrote and the rfcs (1.0) and 1.1

"What should it profit a man, if he should win a flame war, yet lose his cool?"

In Section Perl Monks Discussion