[SOLVED]Proftpd Login not possible

[motokochan]

Salting passwords is a good thing, don't disable a security-enhancement!

The problem actually appears to originate in the generate_rand_salt function. Basically, blowfish and md5 are preferred in that order, and proftpd only accepts traditional UNIX crypt (DES) passwords. I haven't tested with htpassword generation, but if you follow the instructions I posted in this post, the salt generator will generate salt for DES/crypt password hashes.