anyone know how to make it so the username "tim" can only login twice, but this rule only applies to specifically tim, and tim only?

this is for proftpd (latest ver)

nobody?

Twice forever or twice simultaneously?

Not that I have answer to your question, either way. :( And why do you need to do that in the first place?

http://proftpd.linux.co.uk/docs/directives/linked/config_ref_MaxHostsPerUser.html