2 rlogind, rshd, popper, ftpd (telnetd uses nonce?)
6 figure out how it should really behave with -r
8 telnet, rlogin, rsh, rcp
9 Some form of support for ticket forwarding, perhaps only for AFS tickets.
12 Add negotiation for keep-alives.
22 Read default environment from /etc/default/login and other files.
23 Encryption without secondary port is bugged, it currently does no
24 encryption. But, nobody uses it anyway.
29 generate archive and shared libraries in some portable way.
34 Compress and recode X protocol?
37 Other kinds of encapsulations?
38 Tunnel device as loadable kernel module.